Jeep Grand Cherokee

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Jeep Grand Cherokee
2011 Jeep Grand Cherokee Laredo -- NHTSA 2.jpg
Overview
Manufacturer
  • Chrysler Corporation (1993-1998)
  • DaimlerChrysler AG (1998–2007)
  • Chrysler LLC (2007–2009)
  • Magna Steyr (1994-2009)
  • Chrysler Group LLC (2009-2014)
  • FCA US LLC (2014-Present)[1]
Production January 1992–present
Model years 1993–present
Body and chassis
Class Mid-size SUV
Body style 4-door SUV
Layout Front-engine, rear-wheel-drive or four-wheel-drive
Chronology
Predecessor Jeep Wagoneer/Grand Wagoneer

The Jeep Grand Cherokee is a mid-size SUV produced by the Jeep division of American manufacturer Chrysler. While some other SUVs were manufactured with body-on-frame construction, the Jeep Grand Cherokee has always used a unibody chassis.[2]

Development[edit]

The Grand Cherokee's origins date back to 1983 when American Motors Corporation (AMC) was designing a successor to the smaller Jeep Cherokee (XJ).[3] 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.[4] 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.[5]

As AMC began development of the next Jeep in 1985, management created a business process that now known as product lifecycle management (PLM).[6] 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.[7] 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.[7] 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.[7]

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[8] 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.[9] Sales of the 1993 model year Grand Cherokee began in April 1992.[10]

Production of the Grand Cherokee started shortly afterward in the purpose-built Jefferson North Assembly in Detroit, Michigan. European Grand Cherokees are manufactured in Austria by Magna Steyr.[11] 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."[12]

First generation (ZJ) (1993–1998)[edit]

1993-1995 Jeep Grand Cherokee -- 03-30-2012.JPG

The original Grand Cherokee was launched in 1992 as a 1993 model year vehicle in the luxury SUV segment. 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 instrumentation, 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 price tag differential resulted in low consumer demand, and as a result, the low-line model was eventually discontinued. Additional standard features included a driver-side air bag and four-wheel anti-lock braking system (ABS). The Laredo was the mid-scale model with standard features that included power windows, power door locks, and cruise control. Exterior features included medium-grey plastic paneling on the lower body and five-spoke aluminum wheels. The Limited was the premium model, featuring lower body paneling that was the same color as the rest of the vehicle. The Limited also boasted standard features such as leather seating, power sunroof, heated mirrors, heated power seats, and a keyless entry system. The "Up-Country" version was also offered between 1993 and 1997, often painted "Champagne Pearl" or black. It came with 4WD and a 4.0 straight-6. Package groups 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 Aisin AX15 manual transmission. The drive train choices included rear-wheel drive or four-wheel-drive. In 1995, the engine dropped 5 horsepower to 185 due to new EPA regulations imposed on the 1996 model year.

In 1998, a variant of the top-level Grand Cherokee Limited, the "5.9 Limited" was introduced. Jeep ads claimed it to be the "world's fastest sport utility vehicle". The primary improvements in the 5.9 Limited version included a 245 horsepower 5.9L OHV V8 engine, heavy-duty 46RE automatic transmission, functional heat-extracting hood louvers, unique wide-slot body-colored grille with mesh inserts, special rocker moldings, low-restriction exhaust with three-inch chrome tip, a low-profile roof rack, and special 16" Ultra-Star wheels. The 5.9 Limited also received a 150 amp alternator and a 2-speed electric cooling fan. Other features include a standard 180-watt, 10-speaker Infinity Gold sound system with rear roof-mounted sound bar, standard sunroof, and an interior swaddled with unique "calf's nap" soft leather and fake wood trim. The 5.9 Limited was awarded Petersen's 4 Wheel & Off Road Magazine's "4x4 of the Year" for 1998. Production total was 14,286.

Export models produced at the plant in Graz, Austria, were given the vehicle designation of "ZG".

Engines[edit]

Years Engine Displacement Power Torque Notes
1993–1995, 1998 4.0 L Straight-6 242 CID 190 hp (142 kW) 225 lb·ft (305 N·m)
1996–1997 4.0 L Straight-6 242 CID 185 hp (138 kW) 200 lb·ft (271 N·m) new emission standards introduced
1993–1994 5.2 L V8 318 CID 220 hp (164 kW) 285 lb·ft (386 N·m)
1995–1998 5.2 L V8 318 CID 220 hp (164 kW) 300 lb·ft (407 N·m)
1995–1999 2.5 L TURBO DIESEL VM Motori/Detroit Diesel 115 hp (86 kW) 221 lb·ft (300 N·m) Not Available in North America
1998 5.9 L V8 360 CID 245 hp (183 kW) 345 lb·ft (468 N·m)

Second generation (WJ) (1999–2004)[edit]

Jeep Grand Cherokee WJ 34h.jpg

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 rear tailgate glass opened separately. 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.

Export models produced at the plant in Graz, Austria, were given the vehicle designation of "WG".

Engines[edit]

Years Engine Displacement Power Torque
1999–2002 3.1 L TURBO DIESEL VM Motori 140 hp (104 kW) 271 lb·ft (367 N·m) Not Available in North America
1999–2004 (1999-2005 Outside North America) 4.0 L Straight-6 242 CID 195 hp (145 kW) 230 lb·ft (312 N·m)
1999–2000 5.2 L V8 318 CID 220 hp (164 kW) 300 lb·ft (407 N·m)
1999–2004 (1999-2005 Outside North America) 4.7 L V8 287 CID 235 hp (175 kW) 295 lb·ft (400 N·m)
2002–2005 2.7 L CRD Diesel Mercedes Benz Diesel 168 hp (125 kW) 270 lb·ft (366 N·m) Not Available in North America
2002–2004 (2002-2005 Outside North America) 4.7 L H.O. V8 287 CID 260 hp (194 kW) 305 lb·ft (414 N·m)

Third generation (WK) (2005–2010)[edit]

3rd-Jeep-Grand-Cherokee.jpg

The all-new WK Grand Cherokee debuted in 2004 for the 2005 model year. It was first unveiled 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. This Jeep has gained 5 stars in the Euro Ncap safety tests.

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.[13]

Engines[edit]

Years Engine Displacement Power Torque Notes
2005–2010 3.7 L V6 225 CID (3,687 cc) 215 hp (160 kW) 235 lb·ft (319 N·m) Base, Laredo, Laredo X, Limited
2005–2007 4.7 L V8 287 CID (4,698 cc) 230 hp (172 kW) 295 lb·ft (400 N·m) Laredo, Laredo X, Limited
2008–2009 4.7 L V8 287 CID (4,698 cc) 305 hp (227 kW) 334 lb·ft (453 N·m) Laredo, Laredo X, Limited
2005–2008 5.7 L Hemi V8 345 CID (5,654 cc) 325 hp (242 kW) 375 lb·ft (508 N·m) Laredo X, Limited, Overland
2009–2010 5.7 L Hemi V8 345 CID (5,654 cc) 357 hp (266 kW) 389 lb·ft (527 N·m) Laredo X, Limited, Overland
2007–2010 6.1 L Hemi V8 370 CID (6,059 cc) 420 hp (313 kW) 420 lb·ft (569 N·m) SRT-8
2005-2010 Europe/ 2007–2009 North America 3.0 L Mercedes Benz CRD V6 182 CID (2,988 cc) 215 hp (160 kW) 375 lb·ft (508 N·m) Laredo, Laredo X, Limited, Overland

Fourth Generation (WK2) (2011–present)[edit]

Fourth Generation
Jeep Grand Cherokee 3.0 CRD Overland (WK) – Frontansicht, 31. März 2012, Düsseldorf.jpg
Overview
Production 2010–present
Model years 2011–present
Assembly Detroit, Michigan, United States
Valencia, Venezuela (Carabobo Assembly)
Cairo, Egypt (AAV)
Designer Mark Allen[14]
Body and chassis
Related Dodge Durango
Mercedes-Benz M-Class
Mercedes-Benz R-Class
Mercedes-Benz GL-Class
Powertrain
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
Dimensions
Wheelbase 114.8 in (2,915 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.)
Chronology
Predecessor Grand Cherokee WK

The fourth-generation Jeep Grand Cherokee went on sale in summer 2010 as a 2011 model.[15] It was unveiled at the 2009 New York Auto Show.[16] 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[clarification needed] 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 rigidity compared to the previous design. This improves durability and reduces noise, vibration, and harshness.[17]

Like the previous generations, the chassis is a steel unibody. 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 air suspension can raise vehicle's ground clearance up to 11.1 in (282 mm).[18] 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.[19]

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.[20]

2013 Jeep Grand Cherokee WK2 on display in the Philippines

A 3.0 L turbocharged diesel V6 developed and built by Fiat Powertrain Technologies and VM Motori (with Multijet II injection[21]) 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.[dated info][22] 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.[23]

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.[24] Also for 2012 a S-Limited model was offered in Germany.[25]

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.[26][dated info]

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 early 2014, Jeep announced the all-new Altitude Edition lineup: the Jeep Wrangler, Jeep Wrangler Unlimited, Jeep Compass, Jeep Patriot, Jeep Cherokee, and Jeep Grand Cherokee. The Grand Cherokee Altitude Edition model is based on the Laredo E, and adds an 8.4-inch UConnect touch screen stereo, Capri leather seating surfaces, dual power front seats, heated front seats, remote start, HomeLink, black-finished twenty-inch alloy wheels, blacked-out details, black-finished front grille with bright mesh inserts, and more. Unlike in 2012, the 2014 Altitude Edition is only available with the 3.6L Pentastar V6 engine, since it is based on the Laredo E, which also only offers that engine. MSRP starts at around $35,000.

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[edit]

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.[27] German magazine Auto Motor und Sport (AMS) later tested the same press vehicle in a slightly different avoidance maneuver test that meets ISO (International Organization for Standardization) standards. Unlike the results of the Swedish test, the Jeep remained on all four wheels and did not lose any tires to a blowout.[28] Teknikens Värld tested the updated 2014 Jeep Grand Cherokee and found that it passed the test; even up to a speed of 44.1 mph (71 km/h).[29]

2014 refresh and update[edit]

2014 Grand Cherokee fascia and grille
2014 update

On January 14, 2013, Jeep unveiled a revised WK2 Grand Cherokee at the North American International Auto Show at Cobo Center, along with a revised 2014 Jeep Compass and Jeep Patriot. The new Grand Cherokee will offer a 3.0 L DOHC V6 diesel engine that gets up to 30 MPG, a 3.6 L Pentastar V6 engine that gets up to 24 MPG and has 290 horsepower, a 5.7 L HEMI V8 engine that gets up to 21 MPG and has 360 horsepower, and the 6.4 L HEMI engine that produces 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. The silver bezel on the back was removed. 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. The 2013 model year production was cut short to allow Jeep to start producing the new Grand Cherokee at Chrysler'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 Detroit, Michigan. The new Grand Cherokee started production in late January 2013, and as a 2014 model year.

Engines[edit]

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 [30]
2011– 5.7 L Hemi V8 345 CID (5,654 cc) 360 hp (268 kW) 390 lb·ft (529 N·m) Laredo X (up to 2013), Limited, Overland, Summit[30]
2012- 6.4 L Hemi V8 392 CID (6,417 cc) 470 hp (350 kW) 465 lb·ft (630 N·m) SRT8[31]
2011- 3.0 L CRD V6 182 CID (2,988 cc) 140 kW (190 PS; 188 hp) 440 N·m (320 lb·ft) US SPEC Lower output to meet emission standards
2014- 3.0 L CRD V6 182 CID (2,988 cc) 179 kW (243 PS; 240 hp) 569 N·m (420 lb·ft) Available outside North America from launch. US SPEC Limited, Overland, Summit[30]

Transmissions[edit]

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[edit]

2012 Jeep Grand Cherokee SRT-8 at the Montreal International Auto Show

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 time in at 4.7s, 13.4 seconds respectively.[32]

The Grand Cherokee SRT8 debuted alongside two other vehicles manufactured by Chrysler Corporation: the Chrysler 300 SRT8 and Dodge Charger SRT8, both of which also took a one-year hiatus while the new models debuted.

The new Grand Cherokee SRT8, which started production on July 16, 2011,[33] 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,[clarification needed] 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).

In 2014, the Grand Cherokee SRT8 was renamed the Grand Cherokee SRT. Though a line of Street & Racing Technology (SRT) Core Edition models were introduced for the Chrysler 300, Dodge Challenger, and Dodge Charger, the Grand Cherokee SRT did not receive this treatment. A Satin Carbon Edition featuring a matte finish is also available for the 2014 Chrysler 300, Dodge Challenger, and Dodge Charger, though again, the Grand Cherokee SRT is not available with this package.

Production[edit]

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).[34]

Safety[edit]

Euro NCAP[edit]

Euro NCAP test results
Jeep Grand Cherokee (2011)[35]
Test Points %
Overall: 4 /5 stars
Adult occupant: 29 81%
Child occupant: 34 69%
Pedestrian: 16 45%
Safety assist: 5 71%

Insurance Institute for Highway Safety (IIHS)[edit]

2011-2013 Grand Cherokee IIHS scores[36]
Moderate overlap frontal offset Good
Small overlap frontal offset Marginal*(2012–present models)
Side impact Good
Roof strength Good

*vehicle structure rated "Marginal"

NHTSA[edit]

2011-2013 Grand Cherokee 4WD NHTSA scores[37][38][39]
Overall: 4/5 stars
Frontal Driver: 5/5 stars
Frontal Passenger: 4/5 stars
Side Driver: 5/5 stars
Side Passenger: 5/5 stars
Side Pole Driver: 5/5 stars
Rollover: 4/5 stars

Sales[edit]

Calendar Year United States Canada Outside North America Total
1993
1994 238,512[40]
1995 252,168
1996 279,195
1997 260,875[41]
1998 229,135
1999[42] 300,031
2000 271,723
2001[43] 223,612
2002[44] 224,233
2003 207,479
2004[45] 182,313
2005 213,584
2006[46] 139,148
2007 120,937
2008[47] 73,678
2009[48] 50,328 6,254 [49] 14,869[50] 71,451
2010[51] 84,635 7,255 [49] 91,890
2011[52] 127,744
2012[53] 154,734 10,416[54] 165,150
2013[55] 174,275 11,587 255,005[56]

Fire investigations and recall[edit]

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. The NHTCA claims that it has reports of 157 deaths resulting from fires caused by Grand Cherokees crashing. Also affected are 2002-2007 Jeep Liberty models and 1986-2001 Jeep Cherokee models, which totals about 5.1 million affected vehicles.[57]

In June, 2013, Chrysler Corporation responded to the recall, agreeing to recall 2.7 million Jeeps, though eliminating both the 1986-2001 Jeep Cherokee XJ and 1999-2004 Jeep Grand Cherokee WJ from the recall. The recall will include 2.7 million 1993-1998 Jeep Grand Cherokee ZJ and 2002-2007 Jeep Liberty KJ vehicles.

Two weeks prior to this recall, Chrysler Corporation claimed that the affected Jeep vehicles were safe, though agreed to recall the affected vehicles later.

To remedy the problem, Jeep dealerships will install a trailer hitch onto the rear bumpers of Jeep vehicles that will protect the fuel tank if the vehicle is involved in a rear impact. If an affected vehicle is not currently equipped with a trailer hitch, one will be installed onto it, and older Jeep and non-factory aftermarket trailer hitches will be replaced with one from Chrysler Corporation. Despite the recall, the market for these Jeep vehicles has not suffered.[58]

See also[edit]

References[edit]

Inline
  1. ^ "Chrysler Group Launches Production of New Jeep(R) Grand Cherokee at Magna Steyr in Austria", PR Newswire[dead link], retrieved on 2009-01-18
  2. ^ "Jeep Grand Cherokee Review". Retrieved 10 April 2011. 
  3. ^ "The development of the Jeep Grand Cherokee design". Archived from the original on 29 July 2010. Retrieved 8 March 2013. 
  4. ^ Rothenberg, Al (1 March 1998). "Design Debate—Who's the father of the Jeep Grand Cherokee?". Ward's AutoWorld. Retrieved 8 March 2013. 
  5. ^ "1991 Jeep Concept 1 (Note: shown first in 1989)". ajeepthing.com. 2006. Retrieved 8 March 2013. 
  6. ^ Cunha, Luciano. "Making PLM and ERP work together". onwindows.com. p. 18. Retrieved 8 March 2013. [dead link]
  7. ^ a b c Hill, Jr., Sidney (May 2003). "How To Be A Trendsetter: Dassault and IBM PLM Customers Swap Tales From The PLM Front". COE newsnet. Archived from the original on 13 February 2009. Retrieved 8 March 2013. 
  8. ^ Foster, Patrick R. (2004). The Story of Jeep. Krause Publications. p. 221. ISBN 978-0-87349-735-0. Retrieved 28 July 2010. 
  9. ^ Chrysler, Corporation. "1992 Jeep Grand Cherokee Introduction". Video. Retrieved 8 May 2013. 
  10. ^ Hyde, Charles K. (2003). Riding the Roller Coaster: a history of the Chrysler Corporation. Wayne State University Press. p. 296. ISBN 978-0-8143-3091-3. Retrieved 8 March 2013. 
  11. ^ National Academy of Engineering. Committee on the Offshoring of Engineering (2008). The offshoring of engineering: facts, unknowns, and potential implications. National Academies Press. p. 73. ISBN 978-0-309-11483-7. Retrieved 8 March 2013. 
  12. ^ Greasley, Andrew (1999). Operations Management in Business. S. Thornes. p. 112. ISBN 9780748720842. Retrieved 8 March 2013. 
  13. ^ "2009 Jeep Grand Cherokee Gets Powerful Boost from New HEMI Engine and More Premium Amenities". jeephorizons.com. Retrieved September 3, 2008. 
  14. ^ Naughton, Keith. "The SUV's Ride From Peak to Valley". Bloomberg. Retrieved 13 December 2013. 
  15. ^ Ulrich, Lawrence (2009-04-08). "2011 Jeep Grand Cherokee". The New York Times. Retrieved 2010-06-30. 
  16. ^ Paukert, Chris (2009-04-08). "New York: Muscled-up 2011 Jeep Grand Cherokee will take the stairs, thank you". Autoblog.com. Retrieved 2010-06-30. 
  17. ^ White, Jeremy. "The 2011 Jeep Grand Cherokee". Allpar.com. Retrieved 9 October 2010. 
  18. ^ "The 2011 Jeep Grand Cherokee". Allpar.com. 2010-05-25. Retrieved 2010-06-30. 
  19. ^ Paukert, Chris (2009-04-08). "New York: 2011 Jeep Grand Cherokee must serve two masters". Autoblog.com. Retrieved 2010-06-30. 
  20. ^ "2013 Grand Cherokee, Cabin Comfort Features, Jeep". Jeep.com. Retrieved 2013-02-20. 
  21. ^ "New Jeep Grand Cherokee Now Powered by New 3.0-liter Turbo Diesel Engine". Jeeppress-europe.com. Retrieved 2011-05-11. 
  22. ^ "All-new Jeep Grand Cherokee Now Powered by New 3.0-liter Turbo Diesel Engine". chrysler.com. 2011-02-21. 
  23. ^ "Jeep Grand Cherokee". jeep.de. Retrieved 2011-06-02. [dead link]
  24. ^ "2012 Model-Year Chrysler, Dodge, and Jeep Cars, Trucks, and Minivans", retrieved on 2011–02–01.
  25. ^ "Jeep Grand Cherokee S Limited". jeep.de. Retrieved 21 October 2012. [dead link]
  26. ^ "Jeep Grand Cherokee to have short 2013 model year ahead of major updates" from Autoblog (June 25, 2012)
  27. ^ Rabe, Mattias. "Jeep Grand Cherokee moose test failure – the full story on film". Teknikensvarld.se. Retrieved 2 December 2012. [dead link]
  28. ^ Mutchler, Tom (August 1, 2012). "Jeep Grand Cherokee survives different European "moose test"". Consumer Reports. Retrieved 6 March 2013. 
  29. ^ Rabe, Mattias; linus projtz. "This is how the new Jeep Grand Cherokee 2014 handles the moose test". Teknikens Värld. Retrieved 3 January 2014. [dead link]
  30. ^ a b c [1][dead link]
  31. ^ "2014 Jeep Grand Cherokee SRT - Specifications". Chrysler Media. Retrieved June 4, 2014. 
  32. ^ "2012 Jeep Grand Cherokee SRT8". caranddriver.com. July 2011. Retrieved 2013-05-30. 
  33. ^ "Jeep Grand Cherokee WK2 - 6.4L SRT8". Wk2jeeps.com. Retrieved 2011-06-02. 
  34. ^ "Jeep Introduces All-new 2011 Grand Cherokee: Inventor of the SUV Hits the Sweet Spot of Real-world Capability and On-road Refinement". Autonewscast.com. 2009-04-08. Retrieved 2010-06-30. 
  35. ^ "Euro NCAP results for Jeep Grand Cherokee". euroncap.com. 2011. 
  36. ^ "IIHS-HLDI: Jeep Grand Cherokee". Iihs.org. Retrieved 2013-03-20. 
  37. ^ "2013 Jeep Grand Cherokee SUV 4WD | Safercar - NHTSA". Safercar.gov. Retrieved 2013-03-20. 
  38. ^ "2011 Jeep Grand Cherokee SUV 4WD | Safercar - NHTSA". Safercar.gov. Retrieved 2013-03-20. 
  39. ^ "2012 Jeep Grand Cherokee SUV 4WD | Safercar - NHTSA". Safercar.gov. Retrieved 2013-03-20. 
  40. ^ Mateja, Jim (1997-02-16). "Trucks Are Tops". Chicago Tribune. 
  41. ^ [2][dead link]
  42. ^ "Chrysler Group Announces Year-End and December Sales". Theautochannel.com. Retrieved 2009-05-01. 
  43. ^ "Chrysler Group Reports U.S. December Sales". Theautochannel.com. Retrieved 2009-05-01. 
  44. ^ "Chrysler Group Reports December 2003 Sales Increase of 2 Percent". Theautochannel.com. 2004-11-17. Retrieved 2009-05-01. 
  45. ^ "Chrysler Group 2005 U.S. Sales Rise 5 Percent, Highest Since 2000; December Sales Decline In Line with Overall Industry". Prnewswire.com. Retrieved 2009-05-01. [dead link]
  46. ^ "Total Chrysler LLC December 2007 Sales Up 1 Percent on the Strength of Retail; Demand...". Reuters. 2008-01-03. Retrieved 2009-05-01. 
  47. ^ "Chrysler LLC Reports December 2008 U.S. Sales". News.prnewswire.com. Retrieved 2009-05-01. [dead link]
  48. ^ "Award-winning Month Drives Chrysler Group LLC's December U.S. Sales". News.prnewswire.com. 2010-01-05. Retrieved 2010-01-06. 
  49. ^ a b "canada2010". http://media.chrysler.com. Retrieved 2011-02-05. [dead link]
  50. ^ "Chrysler Group LLC Reports December 2009 Sales Outside North America". media.chrysler.com. Retrieved 2011-02-05. [dead link]
  51. ^ "December 2010 Sales: Chrysler". cheersandgears.com. 2011-01-04. Retrieved 2011-01-04. 
  52. ^ "Chrysler sales shoot up 37% (26% for 2011)". allpar.com. Retrieved 2012-01-04. 
  53. ^ "Chrysler Group LLC Reports December 2012 U.S. Sales Increased 10 Percent" (Press release). Chrysler Group LLC. 2013-01-03. Retrieved 2013-01-04. 
  54. ^ "Chrysler Canada Finishes Year With Best Sales Since 2000". Media.chrysler.com. Retrieved 2014-03-07. 
  55. ^ "Chrysler Group LLC Reports December 2013 U.S. Sales Increased 6 Percent – Best December Sales in Six Years; Full-Year Sales Up 9 Percent – Strongest Annual Sales Since 2007". Media.chrysler.com. Retrieved 2014-03-07. 
  56. ^ "Jeep® Brand Records New All-time Global Sales Record in 2013". Media.chrysler.com. Retrieved 2014-03-07. 
  57. ^ Jensen, Chistopher (2013-05-23). "Consumer Advocacy Group Calls for a Recall of 5 Million Jeep Grand Cherokees - NYTimes.com". The New York Times Company. Retrieved 2 June 2013. 
  58. ^ Krisher, Tom; Durbin, Dee-Ann (18 June 2013). "Chrysler Recalls 2.7 Million Older Jeep Grand Cherokee, Jeep Liberty Vehicles". The Huffington Post. Retrieved 8 July 2013. 
General
  • Berg, Phil. "Jeep Grand Cherokee Preview". Car and Driver (August 1998): 69–70. 

External links[edit]