Jeep Grand Cherokee

Jeep Grand Cherokee

Manufacturer	Chrysler Corporation (1993-1998) DaimlerChrysler AG (1998–2007) Chrysler LLC (2007–2009) Chrysler Group LLC (2009-present) Magna Steyr (1994–2009)
Production	January 1992–present
Model years	1993–present
Class	Mid-size SUV
Body style	4-door SUV
Layout	Front-engine, rear-wheel-drive or four-wheel-drive

The Jeep Grand Cherokee is a mid-size SUV produced by the Jeep division of the American manufacturer Chrysler, which is in a strategic global alliance with Italian automobile manufacturer Fiat. While some other SUVs were manufactured with body-on-frame construction, the Jeep Grand Cherokee has always used a unibody chassis.

Development

The Grand Cherokee's origins date back to 1983 when American Motors Corporation (AMC) was designing a successor to the smaller Jeep Cherokee (XJ). Three outside (non-AMC) designers—Larry Shinoda, Adam Clenet, and Giorgetto Giugiaro—were also under contract with AMC to create and build a clay model of the Cherokee XJ replacement, then known as the "XJC" project. However, the basic design for the Cherokee's replacement was well under way by AMC's in-house designers and the 1989 Jeep Concept 1 show car foretold the basic design.

As AMC began development of the next Jeep in 1985, management created a business process that now known as product lifecycle management (PLM). According to François Castaing, Vice President for Product Engineering and Development, the smallest U.S. automaker was looking for a way to speed up its product development process to compete better against its larger competitors. The XJC's development was aided by computer-aided design (CAD) software systems making the engineers more productive while new communication systems allowed potential conflicts to be resolved faster, thus reducing costly engineering changes because all drawings and documents were in a central database. The system was so effective that after Chrysler purchased AMC in 1987, it expanded the system throughout its enterprise, thus connecting everyone involved in designing and building products.

The Grand Cherokee thus became the first Chrysler-badged Jeep product. Development work for the new Jeep model continued and Chrysler's employees (after the 1987 buyout of AMC) were eager for a late-1980s release date; however, CEO Lee Iacocca was pushing for redesigned Chrysler minivans, thus delaying the Grand Cherokee's release until late-1992 as an Explorer competitor. Unlike the Explorer, the Grand Cherokee utilized monocoque (unibody) construction, whereas the Explorer was a derivative of the Ranger pickup with a separate body-on-frame.

The Grand Cherokee debuted in grand fashion at the 1992 North American International Auto Show in Detroit, Michigan. The vehicle that was driven was a Poppy Red Clear Coat 1993 Grand Cherokee ZJ Laredo with a quartz cloth interior and high-back bucket seats. Then Chrysler president Robert Lutz drove Detroit mayor, Coleman Young, from the Jefferson North Assembly Plant on North Jefferson Avenue via a police escort to Cobo Hall, up the steps of Cobo Hall and through a plate glass window to show off the new vehicle. Sales of the 1993 model year Grand Cherokee began in April 1992.

Production of the Grand Cherokee started shortly afterward in the purpose-built Jefferson North Assembly in Detroit, Michigan, United States. European Grand Cherokees are manufactured in Austria by Magna Steyr. The Grand Cherokee "played a significant part in reviving Chrysler's fortunes by moving it into the then nascent market for high-margin sports utility vehicles."

G== ZJ (1993–1998) ==

ZJ

Also called	Jeep Grand Wagoneer (1993)
Production	January 1992–1998
Model years	1993–1998
Assembly	Detroit, Michigan, United States Graz, Austria (Magna Steyr) Córdoba, Argentina Valencia, Venezuela (Carabobo Assembly)
Platform	ZJ platform
Engine	2.5 L 425 OHV I4 Engine specs  •Displacement: 152.5 CID (2,499 cc)  •Stroke: 3.701 in (94 mm)  •Bore: 3.622 in (92 mm)  •Power: 114 hp  •Torque: 221 ft/lb of torque  •Fuel Type: Diesel 4.0 L AMC 242 I6 Engine specs  •Displacement: 242.1 CID (3,968 cc)  •Stroke: 3.413 in (87 mm)  •Bore: 3.88 in (99 mm)  •Power: 190 hp  •Torque: 225 ft/lb of torque  •Fuel Type: Regular Unleaded Gasoline 5.2 L Magnum V8 Engine specs  •Displacement: 318 CID (5,211 cc)  •Stroke: 3.31 in (84 mm)  •Bore: 3.91 in (99 mm)  •Power: 225 hp  •Torque: 300 ft/lb of torque  •Fuel Type: Regular Unleaded Gasoline 5.9 L Magnum V8 Engine specs  •Displacement: 318 CID (5,211 cc)  •Stroke: 3.58 in (91 mm)  •Bore: 4.00 in (102 mm)  •Power: 245 hp  •Torque: 345 ft/lb of torque  •Fuel Type: Regular Unleaded Gasoline
Transmission	4-speed Aisin AW-4 automatic 5-speed Aisin AX-15 manual 4-speed 42RE automatic 4-speed 44RH automatic 4-speed 44RE automatic 4-speed 46RH automatic 4-speed 46RE automatic
Wheelbase	105.9 in (2,690 mm)
Length	1993–95: 178.7 in (4,539 mm) 1996–98: 181.2 in (4,602 mm)
Width	1993-95: 69.2 in (1,758 mm) 1996–98: 69.2 in (1,758 mm)
Height	67.3 (1709 mm)
Curb weight	I6: 3,574 lb (1,621 kg) V8: 3,901 lb (1,769 kg)

The ZJ models, manufactured from 1992 to 1998, originally came in three trim levels: Base, Laredo, and Limited. The Base model included features such as full instrumetation, cloth interior, a standard five-speed manual transmission, while gaining the moniker SE name for the 1994 model year. Power windows and locks were not standard equipment on the base and SE, although they were finally included in 1995. The minimal pricetag differential resulted in low consumer demand and the low-line model was discontinued. Additional standard features of note for that time included a driver-side air bag and four-wheel anti-lock braking system (ABS). The Laredo was the mid-scale model (essentially becoming base model after 1996), standard features included added body cladding power windows, power door locks, and cruise control; exterior features displayed a medium grey plastic lower body paneling and five-spoke aluminum wheels. The Limited was the premium model, with the lower body paneling being the same color as the vehicle color. The Limited also boasted standard features such as leather seating, optional power sunroof, mirrors, seats, and remote keyless entry system; heated mirrors, and heated seats, a basic onboard computer; and waffle-like cast aluminum wheels. The Up-Country version was also offered between 1993 and 1997. They were generally painted "Champagne Pearl" or black. It came with 4WD and a 4.0 straight-6. Package groups that could be added to or were included with the various trim levels included: Convenience, Fog Lamp / Skid Plate, Lighting, Luxury, Power, Security, Trailer/Towing.

When it was first introduced in April 1992 as an early 1993 Model Year vehicle, the Grand Cherokee only had one powertrain choice: the 4.0L AMC-derived 4.0L Power Tech I6 engine that made 190 horsepower. This became the "volume" engine for the Grand Cherokee. Transmission choices included a four-speed automatic transmission (early production ZJs used the AW4 - the A500SE (later 42RE) replaced the AW4 during the latter half of the 1993 model year) or an Asin AX15 manual transmission. The drive train choices included two-wheel-drive (rear-wheel-drive) or four-wheel-drive. In 1995, the engine dropped in horsepower rating by 5 horsepower (185 horsepower), due to new EPA regulations set forth for the 1996 model year.

In mid-1993, Jeep introduced the 5.2L Magnum Engine V8 for the Grand Cherokee. Up until 1997, this engine was only available in four-wheel-drive. In 1997, however, Jeep added a two-wheel-drive or rear-wheel-drive model into the mix as well. The only transmission choice was a 46RH four-speed automatic transmission. The engine produced 220 horsepower. Chrysler Corporation had used this engine in other Chrysler and Dodge products for years.

Minor Changes for the 1993 MY Jeep Grand Cherokee after Late 1992/Early 1993

After 1992, Chrysler Corporation made some minor changes to the 1993 model year Jeep Grand Cherokee. The changes are shown in a brochure titlted, The New Jeep', which was a brochure about the then-all-new 1993 Jeep Grand Cherokee, and was published in early 1992. The 1993 Jeep The Jeep Book shows a change in some of these options (the brochure was published in late 1992).

For example, the crimson-colored interior option for the vinyl and cloth seats was no longer available, and quilted Highland-grain leather seats were available for the Limited model. The 5.2L High-Output V8 Magnum Engine was added in early 1993, and was shown in the brochure. The Jeep Grand Wagoneer Limited was also shown in the brochure, as it also became available in early 1993. The basic radio faceplate style was changed for the A/M-F/M cassette player radio in early 1993, with raised buttons and rounded knobs, as well as larger green display text to match the rest of the Grand Cherokee's interior. That radio also introduced Dolby's Noise Reduction Technology for the cassette player. Full-faced steel wheels replaced six-spoke steel wheels on the Base/SE model.

Finally, in 1998, Jeep introduced a limited-edition 5.9L Limited model for the Grand Cherokee. It was available with the 5.9L Magnum Engine V8 that made 250 horsepower. It was only available in four-wheel-drive and a four-speed automatic transmission. The engine and model were both only available for one model year (1998), and the engine was only available in a single model.

In 1995 the performance of the V8 engine was upgraded to 300 lb·ft (410 N·m) from 285 previously. 1996 brought cosmetic changes ranging from improved body modeling (grille, bumpers), and integrated foglights; interior features added dual airbags and increased fabric quality for seating. At the same time, the "Grand Cherokee" fender emblems in the American Motors-typeface dating back to 1974 were replaced with the typeface used on other Chrysler vehicles. The AMC 4.0 L straight-6 engine, able to tow 5,000 lb (2,300 kg), was also refined, through minimal loss in power but gained more torque and presented quieter operation. Limited models that year and onward had more luxury items such as driver placement memory, remote radio control from the steering wheel, and variable-assist power steering.

Between 1996-98, the export Grand Cherokee Laredo (marketed for Japan) had the optional Aspen package (source: The Story of Jeep).

A 1994 Jeep Grand Cherokee Laredo

1996 Restyling

For the 1996 model year, the Grand Cherokee received a minor restyling to keep up with its competitors of the time such as the Ford Explorer and Toyota 4Runner, both of which were improved. The Grand Cherokee featured new front and rear bumpers, dual front SRS airbags, upgraded seatbelt safety devices, steering wheel-mounted sound system controls for some models, and revised steering wheel, now three-spoke with integrated cruise control buttons, a new dual-note horn, and the horn buttons were deleted in favor of a single horn pad (it allowed the driver to press anywhere in the center of the steering wheel to sound the vehicle's horn). The vehicle also got upgraded seats, an upgraded interior with new door panels and interior trim panels, a glove box that had more storage space, new tires and wheels, revised headlamps, fog lamps that were directly integrated into the vehicle's front bumper on some models, a new keyless entry remote, and wood interior trim standard on all models. The base SE model was dropped for 1996, in favor of new features being added to the Laredo (now base) model. The Grand Cherokee now offered standard power windows, power door locks, rear door child locks, air conditioning, keyless entry, A/M-F/M radio with cassette player and four standard speakers, cloth seating surfaces, and more. The manual transmission was deleted for the 1996 model year Grand Cherokee. New front door designs got new side body cladding strips, and the 'Laredo' subtext on the Laredo model was moved down to the cladding. The 'Grand Cherokee' badge was relocated to the front lower doors, and was now larger. On V8-equipped Grand Cherokees, there was a new V8 badge on the rear liftgate. The 4X4 badge, on four-wheel-drive-equipped Grand Cherokees, was also changed to raised metal letters instead of the 4X4 decals offered before. A combination cassette player and CD player was available for the first time as an option, and the vehicle featured an OBD II diagnostics port under the dashboard on the driver's side, required for all 1996 model year and newer vehicles, a digital odometer and trip odometer, a 120 miles per hour speedometer rating on some models, and the vehicle now included some user-programmable features such as if the headlamps and tail lamps flashed when a button was pressed on the keyless entry remote, how many miles until service intervals, whether the horn sounded when a button was pressed on the keyless entry remote, and more. The overhead console was somewhat redesigned for the 1996 model year to improve storage space and feature availability. The cigarette lighter port on the lower dashboard was replaced by a 12-volt power port for cellular telephones, coolers, computers, and other devices. The ashtray was also removed from the rear doors, replaced by a solid area. The Limited model and Orvis Edition model both got chrome interior door handles.

4x4

Four-wheel drive systems included Command-Trac, a part-time unit offering temporary 4-wheel assistance; Command-Trac was dropped from lineup in conjunction with the SE trim in 1996. Selec-Trac had the option of either full-time or part-time operation; both shift-on-the-fly Command-Trac and Selec-Trac were already available for the Cherokee, and they were adapted to the Grand Cherokee. Exclusive to the Grand Cherokee was the introduction of Quadra-Trac system with permanent all-time four-wheel assistance. This was optional on all models. Low-range required using a manual shift lever for all three systems.

Suspension

The Quadra-Link suspension design was used on both the front and rear axles. This design uses four control arms, two above the axle and two below it, to control longitudinal movement and rotation about the lateral axis (drive and braking reaction). A panhard rod, also referred to as a track bar, is used to locate the axle laterally. Two coil springs are seated on top of the axle housing as well as two gas-charged shock absorbers. The optional "Up Country" package included heavier duty German made gas charged shocks installed upside down, taller coil springs and longer bump stops; thereby increasing ride height by one inch.

Awards

The Grand Cherokee V8 was on Car and Driver magazine's Ten Best list and was Motor Trend magazine's Truck of the Year for 1993.

It was also Petersen's 4x4 of the Year in 1993, 1996 (with the redesigned NV249 transfer case), 1998 (with the newly available 5.9 L V8), 1999 (with its acclaimed 2nd generation model), 2001 (with the new 5-speed transmission), and 2005 (with its 3rd generation model).

Since 2011, the latest WK2 Grand Cherokee has been dubbed the "Most Awarded SUV Ever" due to the amount of awards it received when it was redesigned in 2011.

Models

1993 Jeep Grand Cherokee Limited

1996–1998 Jeep Grand Cherokee

• 1993–1995 — Base "SE"
• 1993–1998 — Laredo
• 1993–1998 — Limited
• 1995–1997 — Orvis "Limited Edition"
• 1997–1998 — TSi
• 1993 Grand Wagoneer
• 1998 5.9 Limited

Explanation of the Models

Base/SE

Prior to 1996, this was the least expensive way to get into a Grand Cherokee. Fairly basic, the Base (later SE) featured fifteen-inch full-faced steel wheels, manual windows, door locks, and front seats, vinyl seats, an A/M-F/M stereo with four speakers, air conditioning, the 4.0L AMC-derrived "Power-Tech" Inline Six-Cylinder Engine, and a 5-Speed Manual Transmission.

Laredo

Prior to 1996, the Laredo was considered the "uplevel" trim package for the Grand Cherokee. It added fifteen-inch alloy wheels, power windows and door locks, cloth seats, an A/M-F/M-Cassette stereo, and a chrome front grille. Starting in 1996, the former base model SE model was dropped, making the Laredo the basic trim package for the Grand Cherokee. In 1998, a Special Edition Laredo was introduced. This model is almost identical to the limited, except for the fifteen-inch alloy Wheels, and the chrome grille.

Limited

The Limited was the most expensive trim package for the Grand Cherokee. It added alloy wheels with either silver or gold-painted accents, an Infinity Gold premium six-speaker sound system (for 1993: Jensen AccuSound) with 120-watt amplifier, power seats, heated leather seats, and body-colored side trim and bumpers.

Grand Wagoneer Limited

Only offered for 1993, the Grand Wagoneer Limited built off of the Limited model for that year. The only difference between a Limited and a Grand Wagoneer Limited for 1993 was that the latter trim package featured vinyl appliques on the sides and rear of the vehicle, featuring a dark walnut wooden look. Because of its unpopularity, the Grand Wagoneer Limited trim package was dropped starting in 1994.

Engines

Years	Displacement	Engine	Power	Torque	Notes
1995–1998	2.5 L Diesel	425 OHV I4	114 hp (85 kW)	221 lb·ft (300 N·m)	export
1993–1995	4.0 L (242 CID)	AMC I6	190 hp (142 kW)	225 lb·ft (305 N·m)
1996–1998	4.0 L (242 CID)	AMC Power Tech I6	185 hp (138 kW)	225 lb·ft (305 N·m)
1993–1998	5.2 L (318 CID)	Magnum V8	225 hp (164 kW)	300 lb·ft (407 N·m)
1998	5.9 L (360 CID)	Magnum V8	245 hp (183 kW)	345 lb·ft (468 N·m)	Limited

Transmissions

Years	Model	Engine
1993	AW4 4-speed automatic	4.0 L (242 CID)
1994–1998	42RE 4-speed automatic	4.0 L (242 CID)
1993–1995	46RH 4-speed automatic	5.2 L (318 CID)
1996–1998	44RE 4-speed automatic	5.2 L (318 CID)
1998	46RE 4-speed automatic	5.9 L (360 CID)

Special edition ZJs

Throughout its lifetime, there were several different "one-off" and special edition models of the ZJ. The following highlights several of these.

Jeep Grand Wagoneer (1993)

1993 Jeep Grand Wagoneer

For 1993 alone, Jeep carried over the Grand Wagoneer name for a special luxury version of the Grand Cherokee with both the 4.0L I6 and the 5.2 L V8 engines, this marked the last appearance for the Grand Wagoneer in the Jeep lineup. Having all the features of the Limited, it featured a simulated wood grain body cladding, along with special Grand Wagoneer badging, and a unique leather interior. This Jeep was the most costly of the line up, and was produced in limited numbers.

The Orvis Edition (1995–1997)

1996 Grand Cherokee Orvis

The Orvis (1995–1997) was a Grand Cherokee Limited package that featured an exterior color scheme of Moss Green, or in 1997 the (less common) Light Driftwood, with roan red and maize side strip accents (1995). Moss Green paint accents on the road wheels (matching the moss green body color) and the special "Orvis" brand badging were the only significant exterior visual differences. In performance, the 5.2 V8 engine became standard, but was available with a 4.0 inline 6-cylinder engine. Also, all Orvis editions were installed with tow hooks and the Up-Country suspension group. However, the interior was special. Two-tone green and tan leather seats were complemented with roan red accent piping and Orvis insignia. There was a slight difference between the 1996 and 1997 years' interior compared to each other. The 1996 had a black dash where the 1997 had a tan dash, The Orvis Edition luxury trim package was optional on the Limited version, and when equipped with all the other options was the most expensive of all the Grand Cherokee versions until 1998 when the 5.9 Limited was introduced.

Production numbers of the Orvis Editions are:

• 1995: 10,020
• 1996: 2,341
• 1997: 2,733

TSi (1997–1998)

1998 Grand Cherokee TSi

A sporty TSi model (1997–1998) briefly debuted, exterior features included single color body paneling, with lower indigo blue striping and TSi accent similar to that found on the Eagle Talon model. They could only be ordered in select colors, which included Black, Platinum, and Deep Amethyst. TSi packages came equipped with 5 spoke 16-inch (410 mm) alloy wheels, 225/70R16 tires, sport tuned suspension and steering, fog lights, Luxury group, featuring: "Highland" perforated leather seats, overhead computer, power driver's seat and a premium sound system with steering wheel mounted controls. The 4.0 litre I6 and the 5.2 litre V8 were the only two available engines in this package. The TSi was priced between the Laredo and the Limited; however, it was comparatively unpopular and a limited number were sold.

The 5.9 L Limited ZJ (1998)

The 5.9 Limited was a Jeep Grand Cherokee produced only for the 1998 model year, having more luxury and performance than that of the regular Limited. Chrysler manufactured nearly a quarter million Grand Cherokees in 1998. Of those, fewer than fifteen thousand were 5.9s. It housed a Magnum 5.9 L V8 engine with an output of 245 hp (183 kW) and 345 lb·ft (468 N·m) of torque, going from zero to 60 mph (100 km/h)in only 7.3 seconds (Motor Trend measured this at a slightly faster 6.8 seconds), making it the quickest SUV available that year. The performance of the 1998 5.9 L V8 has been surpassed by Jeep only with the introduction of the 2006 Jeep Grand Cherokee SRT8, which housed a 6.1 L Hemi Engine. The 5.9 Jeep Grand Cherokee was named the 1998 four-wheel drive vehicle of the year by Petersen's 4-Wheel & Off-Road magazine.

The 5.9 Limited was available only in Deep Slate, Stone White, and Bright Platinum. Other features separated the 5.9 from the standard Limited model including:

A Deep Slate 1998 Grand Cherokee 5.9 L (Note hood louvers and mesh grille inserts)

• Functioning heat-extracting hood louvers
• Revised grill with mesh grille inserts
• Five-spoke alloy Ultrastar wheels
• Black-wall tires
• An improved premium 180 watt, 10 speaker Infinity stereo system
• A rear speaker bar for additional Infinity speakers
• Calf-grain, soft leather seats and trim
• Leather door inserts
• Leather shift handle, e-brake and transfer case handle
• Enhanced faux wood trim throughout, additionally around the transmission shift handle base
• A full-leather spare tire cover with multiple pockets
• A center leather armrest in the rear seat
• A lower-profile roof rack
• Molded rocker panels
• 140 MPH speedometer

The Grand Cherokee 5.9 further included additional performance-enhancing features including:

• A stronger 46RE transmission than the 5.2
• Quadratrac heavy duty NV249 transfer case
• Standard trac-lock rear differential
• An electric fan
• A high-output 150A alternator
• Lower restriction exhaust and chrome plated exhaust tip

Further statistics from Motor Trend, January, 1998:

Model	Production Total	Percent
1993–1998 Jeep Grand Cherokee "ZJ"	1,428,095	100.00%
1998 Jeep Grand Cherokee	247,372	17.32%
1998 Jeep Grand Cherokee 5.9 Limited	14,286	1.00%
5.9 Limited w/Federal Emissions	10,051	0.70%
5.9 Limited w/CA Emissions	4,235	0.30%

Safety

Insurance Institute for Highway Safety (IIHS)

1996-1998 Grand Cherokee IIHS scores

Moderate overlap frontal offset	Marginal
Small overlap frontal offset	Not Tested
Side impact	Not Tested
Roof strength	Not Tested

NHTSA

1993-1998 Grand Cherokee NHTSA scores

Frontal Driver (1993-1995):
Frontal Driver (1996-1998):
Frontal Passenger (1993-1995, 1998):
Frontal Passenger (1996-1997):

WJ (1999–2004)

WJ

Production	1999–2004
Assembly	Detroit, Michigan, United States Graz, Austria (Magna Steyr) Córdoba, Argentina Valencia, Venezuela (Carabobo Assembly) Beijing, China (Beijing Benz)
Platform	WJ platform
Engine	4.0 L PowerTech I6 4.7 L PowerTech V8 4.7 L H.O. PowerTech V8 3.1 L 531 OHV I5 2.7 L OM647 I5
Transmission	4-speed 42RE automatic 4-Speed 45RFE automatic 5-speed 545RFE automatic
Wheelbase	105.9 in (2,690 mm)
Length	1999–2000: 181.5 in (4,610 mm) 2001-03: 181.6 in (4,613 mm) 2004: 181.3 in (4,605 mm)
Width	1999–2000 & 2004: 72.3 in (1,836 mm) 2001–03: 72.6 in (1,844 mm)
Height	1999–2000 & 2004: 69.4 in (1,763 mm) 2001–03: 70.3 in (1,786 mm)
Curb weight	3,669 lb (1,664 kg)

The redesigned WJ 1999 Grand Cherokee shared just 127 parts with its predecessor (mostly fasteners). The spare tire was relocated from the side of the cargo compartment to under the floor. The two heavy pushrod V8 engines were replaced by Chrysler's then-new PowerTech. New V8 engine produced less torque than the old pushrods, but was lighter, offered better fuel economy, and provided similar on road performance figures (the 23-gallon fuel tank was replaced with one of a 20.5-gallon capacity). The Inline 6 engine was also updated in 1999. A redesign of the intake manifold added 10 horsepower (7.5 kW). While other Jeep vehicles used the Mopar 5 x 4.5 bolt circle, this was the first Jeep following the 1987 Chrysler buyout to receive a wider bolt pattern: – 5 x 5.

A notable feature available in this generation was the automatic four wheel drive option called Quadra-Drive, which employed the New Venture Gear NV247 transfer case. This two-speed chain-driven transfer case uses a gerotor, a clutch pack coupled to a hydraulic pump, to transfer torque between the front and rear axles. The transfer case contains three modes, 4-All Time, Neutral, and 4-Lo. In 4-All Time, 100% of torque is sent to the rear axle in normal conditions. If the rear axle starts spinning at a higher rate than the front axle, hydraulic pressure builds up in the gerotor and causes the clutch pack to progressively transfer torque to the front axle until both axles return to the same speed. Neutral mode is intended for towing the vehicle. In 4-Lo, the front and rear axles are locked together through a 2.72 reduction gear ratio. The NV247 transfer case is mated to front and rear axles containing Jeep's Vari-Lok differentials. Vari-Lok differentials also use a gerotor to transfer torque between the wheels on either side of the axle. The major advantage of Quadra-Drive was that the combined transfer case and progressive locking differentials in each axle could automatically control traction between all four wheels. However, only the center differential could be permanently locked, and only in 4Lo. The Quadra-Trac II system included the NV247 transfer case with the standard open front and rear differentials.

The 45RFE and 545RFE automatic transmission in the WJ was notable. It included three planetary gear sets rather than the two normally used in a four-speed automatic. This gave it six theoretical speeds, and it would have been the first six-speed transmission ever produced in volume, but it was programmed to only use five of these ratios. Four were used for upshifts, with a different second gear for downshifts. Although five of the six ratios were used, Chrysler decided to call it a "4-speed automatic". In 2001, the programming was changed to make use of all six ratios. Rather than have six forward gears, the transmission was programmed to act as a five-speed with the alternate second gear for downshifts. The rpm at 70 miles per hour (110 km/h) on a 545RFE is 2000 rpm, 200 rpm less than the 45RFE programming. 1999 and 2000 model year WJ owners can have their 45RFE transmission's programming flashed to enable the extra gear as both transmissions are physically the same. The 42RE 4-speed automatic remained the transmission for the Inline 6 engine. It had slight changes from the previous model Grand Cherokee.

The interior was also completely redesigned in 1999. The redesign allowed for larger rear doors, and more space for rear passengers. Controls for various items like headlights, heated seats, and rear wiper were moved to more convenient locations. The electronic Vehicle Information center was moved from below the radio to above the windshield, and was standard on all 2000 and up models. Limited models included automatic dual-zone climate control. A 10 CD-Changer was also available with the Infinity Audio package.

In addition to Jeep's UniFrame construction, Daimler Chrysler partnered with Porsche to further strengthen the frame.^{[citation needed]} This was done to reduce NVH. UniFrame is an unusual construction scheme, it incorporates all of the strength and durability of a body-on-frame construction into a unitized construction. By adding stiffness and rigidity to the structure, they enhanced the ride and strengthened the network of steel beams, rails and pillars (or "safety cage") that surround and protect occupants. More than 70 percent of the underbody is high-strength steel. All Jeep Grand Cherokees feature UniFrame construction.

The Grand Cherokee received a minor facelift for 2004 including round fog lamps, a lower front fascia and a new body-color matched inset grille design.

Models

Pre- and post-facelifted WJ Grand Cherokees, right and left respectively

The Laredo and luxurious Limited trim levels were standard models, as was the Overland from 2002 to 2004.

Explanation of the models

Laredo

The Laredo trim package continued to be the most basic trim package for the Grand Cherokee. It offered power windows and door locks, an A/M-F/M stereo with cassette player (later an A/M-F/M stereo with cassette and CD players) and six speakers, cloth seats, manually-adjusting front seats, and the 4.0L "Power-Tech" High-Output Inline Six-Cylinder Engine mated to a Four-Speed Automatic Transmission. It also featured sixteen-inch tires with sports alloy wheels.

Limited

The Limited trim package was the uplevel trim package for the Grand Cherokee. It added an A/M-F/M stereo with cassette and CD players and six premium Infinity Gold speakers with an external 180-watt amplifier hidden under the rear seat, leather seats, power front seats with memory for two drivers (based on the two included keyless entry remotes, labeled "1" and "2" respectively, and colored either black or light gray. It also offered either silver or gold-painted accents on the wheels. The aforementioned option was discontinued starting in 2002, replaced by monochrome exterior trim and sixteen-inch alloy silver-painted wheels.

Overland

The Overland built on top of the Limited model, but offered features such as heated seats, a sunroof, the 4.7 Power-Tech V8 engine, five-speed automatic transmission, 17"x7.5" chrome-clad "Hammerhead" wheels, an available A/M-F/M radio with CD player, CD changer, and GPS navigation system (the standard radio was an A/M-F/M radio with Radio Data System, cassette player, CD player, and CD changer), and Quadra-Drive four-wheel-drive, on four-wheel-drive equipped Overlands. The model was only offered from 2002-2004, and had a special Overland badge on both the front doors and the liftgate.

Specialty models:

• 2002 — Sport
• 2002-2004 — Special Edition
• 2004 — Columbia Edition
• 2003–2004 — Freedom Edition

These specialty models appeared for a brief time, The Sport was slightly more equipped than the Laredo and offered a two-tone black trim interior for style. The Special Edition was introduced, priced between the Laredo and Limited, offering the same quality of the Limited, differences include the option of the 4.7 L V8 engine. The Special Edition uses the Quadra-Trac II drivetrain, which utilizes the same NV247 transfer case as the limited edition, but lacks Quadra-Drive's front and rear Vari-Lok differentials. Special Edition came with premium interior details (Instrument cluster graphics were shared with Laredo model, did not acquire white-faced gauges from Limited model), Plush Leather seats, AM-FM, In-Dash CD/Cassette along with ten-disc CD changer stowed in a well thought location in within cargo space. Special Edition Trim package from bumper to bumper was presented with a fully polished, non-textured finish. Front grille was standard issue on the Special Edition. The Overland (appropriated after the former Jeep parent, Willys-Overland) was the top-of-the-line alongside the Limited the 4.7 L High Output engine V8 debuted as the standard motor. Alongside a wealth of standard features such as plusher interior trim with "Overland" badging, mid-2003 came a revised strong black two-tone trim interior. Front and side-curtain airbags, an Infinity sound system with 10-disc changer, heated/power front seats, integrated rock rails, power sunroof, wood/leather steering wheel and 17-inch alloy wheels were also standard. The Columbia Edition offered the usual features of the other specialty models besides a strong unique two-tone interior with "Columbia Sportswear" badging, with the 4.7 L H.O. engine and GPS optional. The Freedom Edition was a modified Laredo model. Features include special badging, painted charcoal rock rails, charcoal lower-body cladding and front/rear fascias, charcoal painted wheels, silver interior accents, and optional leather seats.

Explanation of the specialty models

The Sport was basically a carryover 2001 Laredo that was made only for 2002. Based upon the Laredo, the Sport had wheels from a 2001 Laredo, leather seating surfaces, an A/M-F/M radio with CD player and cassette player with Radio Data System. It had six Infinity Gold speakers with a 180-watt amplifier, a sunroof, a Sport badge on the rear liftgate, and available cloth seating surfaces. It was only offered for 2002.

The Special Edition was basically a Laredo with Limited details. Based upon the Laredo, the Special Edition had body-colored bumpers on the front and rear, as well as body-colored side cladding panels, no Laredo etching on the cladding panels, an A/M-F/M radio with CD player and six Infinity Gold speakers with a 180-watt amplifier, Special Edition badges on the front doors, and power seats. It was offered between 2002 and 2004.

The Freedom Edition was basically a Laredo with extra details. Based upon the Laredo, the Freedom Edition had 17"x7.5" "Hammerhgead" gunmetal-finished wheels, an A/M-F/M radio with cassette player and CD player, Radio Data System, and six Infinity Gold speakers with a 180-watt amplifier, special two-tone cloth seating surfaces, Freedom Edition badges on both front doors, and power seats. It was offered for both 2003 and 2004.

The Columbia Edition was basically a Laredo with extra details. Based upon the Laredo, the Columbia Edition had 17"x7.5" "Hammerhead" wheels, an A/M-F/M radio with Radio Data System, cassette player, and CD player, six Infinity Gold speakers, gunmetal-finished front and rear bumpers and body side cladding panels, two-tone cloth seating surfaces, Columbia Edition badges on both front doors, and power seats. With the purchase of a Columbia Edition Grand Cherokee, the owner received a complimentary exclusive Columbia Sportswear parka. It was only offered for 2004.

Finally, the 60th Anniversary Edition was basically a Limited with extra details. Based upon the Limited, the 60th Anniversary Edition offered 17"x7.5" chrome-clad "Hammerhead" wheels, an A/M-F/M radio with cassette player and ten-disc CD changer, a sunroof, and heated seats. It was only offered for 2001.

Chinese production

Beijing Jeep Corporation, Ltd. had been producing the XJ classic Cherokee since 1984, and in 2004 they bought the old tooling for the WJ Grand Cherokee when the WK was introduced for the U.S. as a 2005 model. After some tooling up time, the WJ was introduced in 2006 for the Chinese market as the Jeep 4000 and 4700 Grand Cherokee (for the 4.0 I-6 and 4.7 V8, inc. HO, models respectively).

It was their flagship model and nearly identical to the 2004 Grand Cherokee Limited in looks and equipment, including the solid axle suspension, choice of 4wd systems, body color cladding, alloy wheels, Chrysler sound systems, and Chrysler automatic climate controls. This is unlike the XJ Cherokee that was significantly modified by Beijing Jeep for the Chinese market.

As of 2010, the current model is sold in China.

Engines

Years	Displacement	Engine	Power	Torque	Notes
1999–2004	4.0 L (242 CID)	Power Tech I6	195 hp (145 kW)	230 lb·ft (310 N·m) @ 3000 rpm
1999–2004	4.7 L (287 CID)	PowerTech V8	235 hp (175 kW)	295 lb·ft (400 N·m) @ 3200 rpm
2002–2004	4.7 L (287 CID)	High Output PowerTech V8	265 hp (198 kW)	330 lb·ft (450 N·m)	Limited, Overland and Freedom Edition only
1999–2001	3.1 L Diesel	531 OHV Diesel I5	138 hp (103 kW)	283 lb·ft (384 N·m)	available in Europe, South Africa, and Mercosur/Mercosul
2002–2004	2.7 L Diesel	OM647 Diesel I5	161 hp (120 kW)	295 lb·ft (400 N·m)	available in Europe, South Africa, Australia, and Mercosur/ Mercosul

Detroit Diesel/VM Motori

The 3.1 litre turbo-diesel on the 1999 Grand Cherokee was developed in conjunction with Detroit Diesel/VM Motori. It has an electronic injection pump, electronically-controlled, vacuum-actuated exhaust gas recirculation, and a special catalyst to control oxides of nitrogen (NOx). Manufactured in Cento, Italy, at 13,000 units per year. It was available in European models and meets the European stage III emissions.

• Displacement: 3,124 cc (191 cu in)
• Power: 104 kW (141 PS; 139 bhp)
• Torque: 367 N·m (271 lb·ft)
• Transmission: Four speed electronically controlled automatic

Safety

Insurance Institute for Highway Safety (IIHS)

1999-2004 Grand Cherokee IIHS scores

Moderate overlap frontal offset	Marginal
Small overlap frontal offset	Not Tested
Side impact	Not Tested
Roof strength	Not Tested

NHTSA

1999-2004 Grand Cherokee NHTSA scores

Frontal Driver:
Frontal Passenger:
Side Driver:
Side Passenger:
4x2 Rollover:	*
4x4 Rollover:	*

*Note: Only 2001-2003 models rated

Recall

On November 8, 2012, Chrysler announced the recall on certain model year 2002 though 2004 Jeep Grand Cherokee vehicles manufactured February 13, 2001, through May 23, 2003. A component in the air bag control module may fail causing the front airbags, side curtain airbags, and/or seatbelt pretensioners to deploy inadvertently while the vehicle is being operated.

WK (2005–2010)

WK

Production	2005–2010
Assembly	Detroit, Michigan, United States Graz, Austria (Magna Steyr) Valencia, Venezuela (Carabobo Assembly)
Platform	WK platform
Engine	3.7 L PowerTech V6 Complete engine specs  •Displacement:226.0 CID (3,701 cc)  •Stroke: 3.57 in (91 mm)  •Bore: 3.66 in (93 mm)  •Power: 210 hp (160 kW)  •Torque: 235 lb·ft (319 N·m)  •Fuel Type: Gas  •Fuel Economy (Combined):17 mpg-U.S. (14 L/100 km; 20 mpg-imp) 4.7 L PowerTech V8 Complete engine specs  •Displacement:287.0 CID (4,703 cc)  •Stroke: 3.40 in (86 mm)  •Bore: 3.66 in (93 mm)  •Power: 305 hp (227 kW)  •Torque: 334 lb·ft (453 N·m)  •Fuel Type: Gas/E85  •Fuel Economy (Combined):14 mpg-U.S. (17 L/100 km; 17 mpg-imp) 5.7 L Hemi V8 Complete engine specs  •Displacement:345.0 CID (5,654 cc)  •Stroke: 3.58 in (91 mm)  •Bore: 3.92 in (100 mm)  •Power: 330 hp (250 kW)  •Torque: 375 lb·ft (508 N·m)  •Fuel Type: Gas  •Fuel Economy (Combined):14 mpg-U.S. (17 L/100 km; 17 mpg-imp) 6.1 L Hemi V8 (SRT-8) Complete engine specs  •Displacement:370.0 CID (6,059 cc)  •Stroke: 3.58 in (91 mm)  •Bore: 4.05 in (103 mm)  •Power: 425 hp (317 kW)  •Torque: 420 lb·ft (570 N·m)  •Fuel Type: Gas  •Fuel Economy (Combined):12 mpg-U.S. (20 L/100 km; 14 mpg-imp) 3.0 L OM642 V6 CRD Complete engine specs  •Displacement:182 CID (2,987 cc)  •Stroke: 3.62 in (92 mm)  •Bore: 3.27 in (83 mm)  •Power: 215 hp (160 kW) @3800 rpm  •Torque: 376 lb·ft (510 N·m)  •Fuel Type: Diesel  •Fuel Economy (Combined):18.34 mpg-U.S. (12.83 L/100 km; 22.03 mpg-imp)
Transmission	5-speed 545RFE automatic 5-speed W5A580 automatic
Wheelbase	109.5 in (2,781 mm)
Length	186.6 in (4,740 mm) 2005–07 SRT-8: 195.1 in (4953 mm)
Width	body: 73.3 in (1,862 mm) at mirrors:84.3 in (2,141 mm)
Height	2005–07: 67.7 in (1,720 mm) 2008–2010: 68.7 in (1,745 mm) 2008–2010 SRT8: 66.7 in (1,694 mm)
Curb weight	2005 Euro 3.0 CRD (Diesel)   2,210 kg (4,872 lb) Limited 4WD 5.7 L: 4,735 lb (2,148 kg) NOTE: 2WD not available in Europe & UK
Related	Jeep Commander

The all-new WK Grand Cherokee debuted in 2004 for the 2005 model year. It was first unvieled at the 2004 New York International Auto Show. Features available for the first time in a Jeep included Quadra-Drive II four-wheel drive, rear-seat DVD player and optional 5.7 L Hemi V8. The 3.7 L V6 engine replaced the 4.0 L Straight-6.

The design still emphasizes power and luxury, with significant work done on improving noise, vibration, and harshness (NVH). However, for the first time, Jeep also emphasized on-road performance to a similar extent as the cornerstone of its brand, off-road capability.

This newfound emphasis on on-road refinement led Jeep to replace the XJ-era live-axle with leading-arms front suspension (found in the ZJ and WJ) with a new design: an independent double-wishbone setup like that which debuted in the 2002 Liberty. The new Jeep changed its philosophy due to what it perceived as increasing demand in the SUV marketplace for on-road performance and decreasing demand for off-road capability. Although classed as a truck-based SUV, the WK Grand Cherokee has more luxuries of a crossover especially with NVH.

The 2007 Jeep Grand Cherokee made its European debut at the Euro Camp Jeep held in Ardèche, France.

2008 Jeep Grand Cherokee

The Grand Cherokee received a minor facelift for 2008. The bottom part of the headlights became rounded and High Intensity Discharge (HID) Headlamps with auto leveling were added and the lower portion of the front bumper became removable to increase the approach angle for off-road use. The 4.7 L was refined, now producing 305 hp (227 kW; 309 PS), and 334 lb·ft (453 N·m).

The 2009 Jeep Grand Cherokee is available with an improved 5.7 L Hemi engine rated at 357 hp (266 kW; 362 PS) and 389 lb·ft (527 N·m) of torque. The engine uses variable valve timing to increase fuel economy.

Models

• 2005–2010 – Laredo (not in Europe)
• 2005–2010 – CRD Predator (Europe)
• 2005–2010 – Limited
• 2006–2010 – Overland
• 2006–2010 – SRT-8
• 2006 - 65th Anniversary Edition

Engines

Years	Engine	Power	Torque	Notes
2005–2010	3.7 L PowerTech V6	210 hp (157 kW)	235 lb·ft (319 N·m)	Laredo, Limited
2005–2007	4.7 L PowerTech V8	265 hp (198 kW)	305 lb·ft (414 N·m)	Laredo, Limited
2008–2009	4.7 L PowerTech V8	305 hp (227 kW)	334 lb·ft (453 N·m)	Laredo, Limited
2005–2008	5.7 L Hemi V8	330 hp (246 kW)	375 lb·ft (508 N·m)	Limited, Overland
2009–2010	5.7 L Hemi V8	357 hp (266 kW)	389 lb·ft (527 N·m)	Laredo, Limited, Overland
2006–2010	6.1 L Hemi V8	425 hp (317 kW)	425 lb·ft (576 N·m)	SRT-8
2005 (2007-2008 in NA)–	3.0 L OM642 V6	215 hp (160 kW)	376 lb·ft (510 N·m)	Laredo, Limited, Overland

Notes

• The 4.7 L High Output engine that first appeared with the Grand Cherokee Overland WJ was dropped from the Jeep lineup. It was used in the Dodge Dakota and Dodge Ram 1500. The 4.7 L was revised in 2008, increasing horsepower and torque to 310 hp (231 kW; 314 PS) and 330 lb·ft (447 N·m) of torque. A dedicated High Output version was dropped as a result.
• The WK was known as a WH in international (i.e. non-US) markets.
• The 5.7 L HEMI engine for 2005-2008 has slightly less horsepower than those found in the Dodge Ram or the Dodge Charger (330 vs 345) due to different engine control unit (ECU) programming.
• The 5.7 L HEMI engine for 2009 and up was upgraded with Variable Cam Timing (VCT) adding 27 hp (20 kW; 27 PS) and 14 lb·ft (19 N·m) of torque.
• The 3.0 L diesel ceased production for North America at the end of 2008. The late production models with diesel engines are commonly referred to as 2008.5 models. They can not be stamped as 2009 models due to more restrictive diesel emissions standards.

SRT-8

See also: Street and Racing Technology

2010 Jeep Grand Cherokee SRT-8

An SRT-8 (Street and Racing Technology V8) version of the Grand Cherokee debuted at the 2005 New York International Auto Show. Powered by a 420 hp (313 kW) version of the 6.1 L Hemi, it also features upgraded Brembo brakes, large dual performance exhaust with polished tips (exiting out the middle of the rear), Bilstein performance gas charged shocks and modified suspension components, Mercedes-Benz NAG1 (WA580) 5-speed transmission, unique NV146 transfer case, specially designed electronic all-wheel-drive system and interior and exterior updates. A drive shaft from a diesel application, fortified Dana 44 rear differential, and 11.2" (285 mm) wide Goodyear tires in the rear (10" or 255 mm in the front) complement the performance package. The sports tuned suspension allows the Jeep SRT8 to develop 0.92 g on the skid-pad.

A road test of the 2006 production model conducted by Insideline yielded a 0 to 60 mph time of 5.2 seconds and a quarter mile dragstrip of 13.49 seconds at 102.24 miles per hour (164.5 km/h). Such numbers made the SRT-8 Grand Cherokee the fastest accelerating vehicle within the SRT8 lineup, and third only to the Dodge Viper SRT10 and Chrysler Crossfire SRT6 among all SRT vehicles. There is no electronic speed governor employed, leaving the top speed rev-limited (revving to redline in top gear) to 170 mph (270 km/h).

To achieve superior on-road handling, off-road gear has been removed to make the SRT-8 lighter. The SRT-8 uses an NV146 transfer case, which uses an electronic-applied clutch pack to transfer 0-50% of torque to the front axle but has no low-range or manual controls. The front and rear differentials are both open, with no limited-slip capability. Its ride stance is significantly lower and the front fascia spoiler gives the vehicle 7 inches (178 mm) of ground clearance. The Grand Cherokee SRT-8 was the first SRT vehicle to wear the Jeep emblem.

A total of 11,775 Jeep SRT8s were produced.

Diesel

2005 Grand Cherokee with 3.0 V6 Turbo Diesel

In Europe, South America, South Africa and Australia, a V6 CRD engine produced by Mercedes-Benz was available from its introduction in 2005:

OM642 3.0 L CRD V6 Turbo Diesel with Variable geometry turbocharger (VGT). It produces 215 horsepower (160 kW; 218 PS) and 376 lb·ft (510 N·m) of torque at 1,600 to 2,800 rpm at a fuel consumption of 17 mpg_-US (14 L/100 km; 20 mpg_-imp) city and 22 mpg_-US (11 L/100 km; 26 mpg_-imp) highway.

Note: MPG figures are based on United States Environmental Protection Agency, European combined consumption is 27.7 mpg_-imp (10.2 L/100 km; 23.1 mpg_-US).

In North America the 3.0 CRD was availilabe 2007 and 2008, however the rest of the world - i.e. UK, Europe Australia etc., it had the Mercedes sourced engine for the production life of the vehicle from 2005. The Mercedes-Benz sourced unit meets stringent Euro 4 Emission standards without the need for a diesel particulate filter - which hampers vehicle efficiency, however - it includes a diesel particulate filter (North America only) to apparently further reduce exhaust emissions. It was not however available for sale in California or certain Northeast states, due to new stricter emissions regulations for non-commercial vehicles. Vehicles could be bought used in California and Northeast states, as the regulations only applied to new vehicles.

This engine is also used in the majority of Mercedes-Benz vehicles: C-Class, CLS, E-Class, S-Class, ML-Class, GLK-Class, GL-Class, G-Class, R-Class, the Vito / Viano, and the Dodge / Freightliner / Mercedes-Benz Sprinter.

Safety

Euro NCAP

Euro NCAP test results
Jeep Grand Cherokee (2005)
Test	Score	Rating
Adult occupant:	26
Child occupant:	35
Pedestrian:	0

Insurance Institute for Highway Safety (IIHS)

2005-2010 Grand Cherokee IIHS scores

Moderate overlap frontal offset	Good
Small overlap frontal offset	Not Tested
Side impact	Marginal
Roof strength	Not Tested

NHTSA

2005-2010 Grand Cherokee NHTSA scores

Frontal Driver:
Frontal Passenger:
Side Driver:
Side Passenger:
4x2 Rollover:
4x4 Rollover:

WK2 (2010–present)

WK2

Production	2010–present
Model years	2011–present
Assembly	Detroit, Michigan, United States Valencia, Venezuela (Carabobo Assembly)
Engine	3.6 L Pentastar V6 5.7 L Hemi V8 6.4 L Hemi V8 (SRT-8) 3.0 L VM Motori A 630 DOHC V6 diesel
Transmission	5-speed automatic W5A580 5-speed automatic 545RFE 6-speed automatic 65RFE 8-speed automatic 845RE 8-speed automatic 8HP70
Wheelbase	114.8 in (2,916 mm)
Length	189.8 in (4,821 mm)
Width	76.3 in (1,938 mm)
Height	69.3 in (1,760 mm)
Curb weight	4,261 lb (1,933 kg) (approx.)
Related	Dodge Durango Maserati Levante Mercedes-Benz M-Class Mercedes-Benz R-Class Mercedes-Benz GL-Class

The current-generation Jeep Grand Cherokee went on sale in summer 2010 as a 2011 model. It was unveiled at the 2009 New York Auto Show. The fourth-generation Grand Cherokee retains its classic Jeep styling combined with a modern and sleek body style. The interior is luxurious, featuring leather trim and real wood accents, plus state-of-the-art electronics options. The 2011 Grand Cherokee has won 30 awards for off-road capability, luxury, value, best-in-class, and safety, making it the most awarded SUV ever. Among the awards are: Top Safety Pick for 2011 from the IIHS, listed as a Consumers Digest Best Buy for 2011, Safest SUV in America by MSN Autos, and Truck of the Year for 2011 by The Detroit News.^{[citation needed]}

2012 Jeep Grand Cherokee Overland

2011 Jeep Grand Cherokee Limited (Australia)

The body design is all new and has undergone testing for aerodynamic efficiency while improving ruggedness with more than 5,400 welds in the body alone. This results in a 146% increase in torsional stiffness compared to the previous design for improved durability and reduced noise, vibration, and harshness.

Like the previous generations, the chassis is a steel uniframe. Unlike previous models, the new WK2 features four-wheel independent suspension for better on-road handling. The Grand Cherokee (with the 2011 Durango) WK2 platform uses a derivative based on Mercedes-Benz's W166 series.

Engine choices include the all new 3.6 L Pentastar V6 and 5.7 L Hemi V8. Four wheel drive systems include Quadra-Trac I, Quadra-Trac II, and Quadra-Drive II. Optional Quadra-Lift suspension can raise vehicle's ground clearance up to 11.1 in (282 mm). Lift modes include Park, Aero, Normal Ride Height, Off-Road 1, and Off-Road 2. Also new is the Selec-Terrain, which has modes for Auto, Sport, Snow, Sand/Mud, and Rock.

The Hemi V8 retains the Multiple Displacement System (MDS) that shuts down four cylinders in low-power driving situations. And the V8 remains coupled with the multi-speed automatic transmission which includes Electronic Range Selection (ERS) to manually limit the high gear operating range. Trailer tow is rated 7,400 lb (3,400 kg) for Hemi models and 5,000 lb (2,300 kg) for Pentastar models.

The 3.6 L Pentastar V6 replaces the 3.7 L and 4.7 L PowerTech engines. The 5.7 L Hemi engine was retained as the V8 option, although no Hemi badging is used on the exterior of the vehicle. Also, the WK program code remains.

Some features changed with this generation are the handbrake being replaced by a footbrake, and the wiper stalk on the right side of the steering column being moved to the turn signal stalk, which also means the lights move to the dash. Also new is a heated steering wheel, standard on Overland and SRT8 models and available on Limited models.

A 3.0 L turbocharged diesel V6 developed and built by Fiat Powertrain and VM Motori (with Multijet II injection) rated at 177 kW (241 PS; 237 hp) and 550 N·m (410 lb·ft) of torque will be offered in export markets by mid-2011. The new 3.0 L CRD turbodiesel engine will also be offered in European markets as 140 kW (190 PS; 188 hp) low-power version.

For the 2011 model year, the Grand Cherokee was offered in five trim levels: Laredo, Laredo X, Limited, Overland, and Overland Summit. The performance SRT-8 version returned for the 2012 model year. Also for 2012 a S-Limited model was offered in Germany.

Laredo was the basic model, and could be upgraded to the "X" trim package for upgraded luxury features. Limited was the luxurious model. Overland was the top-of-the-line trim package, and Overland Summit was the most expensive trim package, prior to 2012. The SRT8 392 version was the most expensive trim package for 2012, and added the 6.4-liter, 392-cubic-inch, 470-horsepower V8 HEMI engine and a six-speed automatic transmission. It also offered a tweaked version of the SelecTerrain System that added performance-enhanced modes to its basis.

In mid-2012, Jeep started a sweepstakes in order to help name a production-intent concept car based on the Laredo X model. The vehicle featured a black leather interior, twenty-inch wheels with black-finished tires, black-colored body components, and more. The winner of the sweepstakes would get their winning name put onto the vehicle, and would win one of the first of these vehicles when they would be put into production in May 2012. In March 2012, the winning name of "Altitude" was picked, and Jeep also put the Altitude name on both the Jeep Compass and Jeep Patriot, based on the Sport models of both of the aforementioned vehicles. They will be sold alongside the Grand Cherokee Altitude Special Edition.

On June 25, 2012, Jeep announced that the 2013 model year, slated to go on sale in August 2012, will be shortened due to plans to unveil an upgraded version for the 2014 model year, which could go on sale after its introduction at the 2013 Detroit Auto Show.

In September 2012, Jeep announced three new limited production models of the Grand Cherokee. The first Grand Cherokee would be the Trailhawk Edition, which took the name from the 2007 Jeep Trailhawk concept, upon which the 2011 Grand Cherokee was based. The Trailhawk Edition has Kevlar-reinforced off-road tires, alloy wheels, a two-tone hood stripe, and black leather interior. The model is based on the Laredo X, and includes its features. The next two models were the SRT8 Alpine and Vapor Editions, the Alpine Edition featuring Bright White Clear Coat exterior paint, and the Vapor Edition featuring Brilliant Black Crystal Pearl Coat exterior paint. Features such as a black-faced front grille, smoked alloy wheels and a black leather and suede interior are standard. This model builds on the features of the standard Grand Cherokee SRT8. Due to the popularity of the originally limited edition Altitude Edition model, Jeep announced that the Altitude Edition Grand Cherokee would be produced once again for 2013. It is unchanged from 2012. The Jeep Wrangler, Jeep Wrangler Unlimited, Jeep Compass, and Jeep Patriot Altitude Editions would be discontinued, though. These were available only for 2012.

In mid-2012, electric vehicle manufacturer Amp Electric Vehicles, announced that it would be producing an electric vehicle version of the Jeep Grand Cherokee, offering a great electric range and the same features of the Grand Cherokee. Slated to be available in early 2013, the AMP Grand Cherokee will have a starting price of around $50,000.00. AMP also produces electric vehicle versions of a step van and the Mercedes-Benz ML.

Maneuverability and handling issues

In 2012, Swedish automotive magazine Teknikens Värld revealed that the Jeep Grand Cherokee failed one of their avoidance maneuver tests known as the "moose test". Other SUV models in its class had no issues passing the test. German magazine Auto Motor und Sport (AMS) later tested the same press vehicle in a slightly different avoidance maneuver test that meets ISO (International Standards Organization) standards. Unlike the results of the Swedish test, the Jeep remained on all four wheels and did not lose any tires to a blowout.

2014 Grand Cherokee

On Monday, January 14, 2013, Jeep unveiled a revised WK2 Grand Cherokee at the North American International Auto Show in Detroit, Michigan at Cobo Center, along with a revised 2014 Jeep Compass and Jeep Patriot. The new Grand Cherokee will offer an EcoDiesel V6 engine that gets up to 30 MPG, a 3.6L Pentastar V6 engine that gets up to 24 MPG and has 290 horsepower, a 5.7L HEMI V8 engine that gets up to 21 MPG and has 360 horsepower, and finally, the 6.4L HEMI V8 engine that offers 470 horsepower. The models are the Laredo, the Limited, the Overland, and the Overland Summit Edition model has been renamed Summit. A new front end with a revised body-colored grille, new, smaller headlamps, and new tail lamps round out the exterior changes. There are also new seventeen, eighteen, and twenty-inch wheel and tire choices. The SRT8 model will continue to be offered, and for the first time will offer signature details like blacked-out head and tail lamps. Inside, the Summit model receives the SRT8's nineteen-speaker Harman/Kardon surround-sound system, all Grand Cherokees receive a new steering wheel with standard paddle shifters in every model, an eight-speed TorqueFlite 8 automatic transmission, and an 8.4-inch touch screen display with Garmin navigation software, an optional CD player, and the U Connect Access System first introduced in the all-new 2013 Ram 1500. A U Connect 5.0 touch-screen radio will also be available with an optional CD player. The Selecterrain System receives multiple upgrades on four-wheel-drive Grand Cherokees. New exterior colors, new interior fabrics and materials, and new interior colors become available. The SRT8 model receives a unique steering wheel with the SRT insignia, twenty-inch alloy wheels, performance tires, and details inspired by the all-new 2013 SRT Viper. Pricing is expected to start around $28,000 MSRP, and 2013 model year production will be cut short to allow Jeep to start producing the new Grand Cherokee at Chrysler Corporation's Jefferson North Assembly Plant in Detroit, Michigan, where the Grand Cherokee has been built since its introduction at the 1992 North American International Auto Show in January 1992 in Detroit, Michigan. The new Grand Cherokee will start production in late January 2013, and will go on-sale in early spring of 2013 as a 2014 model year vehicle.

Engines

Years	Engine	Displacement	Power	Torque	Notes
2011–	3.6 L Pentastar V6	220 CID (3,604 cc)	290 hp (216 kW)	260 lb·ft (353 N·m)	Laredo, Laredo X, Limited, Overland, Summit
2011–	5.7 L Hemi V8	345 CID (5,654 cc)	360 hp (268 kW)	390 lb·ft (529 N·m)	Laredo X, Limited, Overland, Summit
2012	6.4 L Hemi V8	392 CID (6,417 cc)	470 hp (350 kW)	465 lb·ft (630 N·m)	SRT8
2011-	3.0 L CRD V6	182 CID (2,988 cc)	140 kW (190 PS; 188 hp)	440 N·m (320 lb·ft)	Laredo, Limited
2011-	3.0 L CRD V6	182 CID (2,988 cc)	177 kW (241 PS; 237 hp)	550 N·m (410 lb·ft)	Limited, Overland

Transmissions

Years	Model	Engines
2011–2013	W5A580 5-speed automatic	3.0, 3.6 L
2012–2013		6.4 L
2011	545RFE 5-speed automatic	5.7 L
2012–2013	65RFE 6-speed automatic
2014–on	845RE 8-speed automatic	3.6 L
2014–on	8HP70 8-speed automatic	3.0, 5.7, 6.4 L

SRT-8

2012 Jeep Grand Cherokee SRT-8 (North America)

On April 20, 2011, Jeep announced that the SRT8 version would be debuted at the 2011 New York Auto Show. According to Chrysler, it is the most powerful Jeep ever built. 0–60 and quarter-mile times have not been measured yet, but are expected to be on par with the previous generation SRT8.^{[citation needed]}

The new Cherokee SRT8, which started production on July 16, 2011, is equipped with a 470 hp (350 kW; 480 PS) 6.4 L Hemi V8 engine. Jeep claims the new SRT8 gets 13 percent better fuel economy than its predecessor.^{[citation needed]} To keep the gas mileage respectable, Jeep has employed a new active exhaust system that lets Chrysler's cylinder-deactivating Fuel Saver Technology operate over a wider rpm band. Chrysler claims that with the larger gas tank, the SUV can now travel up to 500 miles (800 km) on a single tank, while other sources estimate range to be 450 miles (720 km).

Production

In 2009, the company announced a US$1.8 billion, 285,000 square feet (26,477 m²) expansion of its Jefferson North Assembly plant to allow flexible manufacture of the next-generation model, as well as the 2011+ Dodge Durango off the same platform that was developed jointly with Mercedes (ML Chassis).

Safety

Euro NCAP

Euro NCAP test results
Jeep Grand Cherokee (2011)
Test	Points	%
Overall:
Adult occupant:	29	81%
Child occupant:	34	69%
Pedestrian:	16	45%
Safety assist:	5	71%

Insurance Institute for Highway Safety (IIHS)

2011-2013 Grand Cherokee IIHS scores

Moderate overlap frontal offset	Good
Small overlap frontal offset	Not Tested
Side impact	Good
Roof strength	Good

NHTSA

2011-2013 Grand Cherokee 4WD NHTSA scores

Overall:
Frontal Driver:
Frontal Passenger:
Side Driver:
Side Passenger:
Side Pole Driver:
Rollover:

Sales

Calendar Year	United States	Canada	Outside North America	Total
1993
1994	238,512
1995	252,168
1996	279,195
1997	260,875
1998	229,135
1999	300,031
2000	271,723
2001	223,612
2002	224,233
2003	207,479
2004	182,313
2005	213,584
2006	139,148
2007	120,937
2008	73,678
2009	50,328	6,254	14,869	71,451
2010	84,635	7,255		91,890
2011	127,744
2012	154,734

Fire investigations

In 2010, the National Highway Traffic Safety Administration launched an investigation into 1993-2004 model year Jeep Grand Cherokees which involves the fuel tanks of these SUVs. Because the gas tanks are mounted between the bumper and rear axle, a rear collision could cause the fuel tank to leak, causing a fire. Fifteen people have died from fires involving these vehicles. Also affected are 2002-2007 Jeep Liberty models and 1993-2001 Jeep Cherokee models, which totals about 5.1 million affected vehicles.

See also

• Jeep Cherokee (SJ), the similarly named 1974-83 predecessor.

References

Inline

General

• Berg, Phil. "Jeep Grand Cherokee Preview". Car and Driver (August 1998): 69–70. 

External links

• 2011 Jeep Grand Cherokee site
• Australian 2011 Jeep Grand Cherokee site
• Only in a Jeep. Public Domain Jeep promo video.
• Jeep Grand Cherokee ZJ @ Hamcar.info
• [2]