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INTRODUCTION
All-new, third generation Jeep Grand Cherokee
Features at a glance
STYLING – EXTERIOR & INTERIOR
Contemporary exterior design and functional interior move Jeep Grand Cherokee forward
ENGINES & TRANSMISSIONS
Broad range of powertrains offer smooth and durable performance
ENGINEERING
All-new 4x4 systems and running gear enhance on-road refinement and off-road capability
SAFETY
Jeep Grand Cherokee boosts active and passive safety for consumers
QUALITY & DURABILITY
Quality and durability are built into new Jeep Grand Cherokee by design
TECHNICAL SPECIFICATIONS
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All-New, Third Generation Jeep® Grand Cherokee
First-time availability of 5.7-litre HEMI with Multi-Displacement System in a Jeep®
New exterior and interior design captures authentic Jeep look and feel
Two new 4x4 systems to meet every customer’s driving needs
All-new suspension and steering system provides confident ride and handling
Standard Electronic Stability Program (ESP) advances active safety protection
Melbourne – The all-new, third generation Jeep Grand Cherokee has arrived in Australia, offering a sportier appearance, improved on-road ride and handling, thanks to an all-new suspension and steering package and superior off-road capability courtesy of new four-wheel-drive systems.
“The all-new Jeep Grand Cherokee is designed, engineered and built to master every imaginable day-to-day driving condition, whether on-road or off-road, in all kinds of weather,” said Gerry Jenkins, managing director, Chrysler Jeep Australia.
“The result is a Jeep that is all-new from the ground up and all Jeep from the inside out.
“The new Grand Cherokee sets the benchmark with its on-road refinement, off-road mastery and class-leading performance in three key areas of customer satisfaction: engine torque, off-road traction and towing capabilities,” said Jenkins.
New engines deliver performance and power
Two petrol engines will initially be offered in the new Grand Cherokee. For the first time ever, the new 5.7-litre HEMI V8 engine is available on a Jeep, in addition to the popular 4.7-litre V8.
Grand Cherokee also brings customers an all-new state-of-the-art 3.0-litre V6 common-rail direct turbo diesel (CRD) engine, which will arrive in Australia in August.
Jeep Grand Cherokee is the first four-wheel-drive to offer the Multi-Displacement System (MDS). On the 5.7-litre HEMI engine, MDS deactivates half the cylinders during cruising and light acceleration to increase fuel economy by up to 20 per cent, depending on driving conditions.
Ninety per cent of peak torque is available from 2400 to 5100 rpm for excellent performance while trailer towing or travelling off-road, as well as regular city and highway driving.
A sophisticated Electronic Throttle Control system tailors throttle response to pedal movement based on operating conditions and when cruise control is activated, maintains a more consistent vehicle speed on rolling grades than was possible with the previous mechanical throttle.
This control does not come at the expense of performance. The 5.7-litre HEMI engine provides class-leading power and torque, at 240 kW and 500 Nm. It also stands among the best in class for acceleration.
The Jeep Grand Cherokee delivers class-leading towing capacity of 3500 kg. Combined with the 1908 litres of rear cargo volume, this allows customers greater flexibility in usage for both business and pleasure.
The all-new 3.0-litre CRD engine is a “next-generation” power unit from DaimlerChrysler producing class-leading levels of torque and towing, with efficient fuel economy. With Bosch high-pressure fuel injection (1600+ bar), a variable geometry turbocharger and four valves per cylinder, the new engine meets Euro 4 emissions standards. Maximum power is 160 kW and peak torque is 510 Nm from just 1600 rpm.
For the diesel engine, a kick-down switch is now added to the accelerator pedal. This detent, reached before the full travel of the pedal, is intended to reduce transmission kick-downs during normal driving but still allow for full pedal travel when a quicker acceleration is wanted by the driver.
All-new automatic transmission offers premium refinement
An all-new five-speed W5A580 automatic transmission offers smooth shifts and optimum fuel economy with the 3.0-litre CRD. The 5-45RFE five-speed automatic transmission used with the 5.7-litre HEMI and 4.7-litre V8 has been refined for higher-quality shifts while increasing the Jeep Grand Cherokee’s maximum towing capacity.
Both transmissions feature Electronic Range Select driver interactive shift control for the first time on Jeep Grand Cherokee. The shifter provides fully automatic shifting in the “Drive” position, or the driver can manually select each gear sequentially by moving the shift lever left or right from the “Drive” position. This gives the driver control to precisely match any on-road or off-road driving requirement.
Legendary Grand Cherokee size, styling and comfort
Jeep Grand Cherokee’s new design provides a contemporary return of an athletic appearance. Up front, the signature seven-slot grille, flanked by the functional round appearance, high-performance halogen headlamps, boldly dominates the design statement. These round headlamps unify the unmistakable front-end appearance of the entire Jeep line-up.
A proportionally longer bonnet and greater distance from the centre of the front axle to the base of the windshield visually communicate a more powerful image. Helping to achieve a more athletic appearance is a flatter windshield and sleeker A-pillar design.
The new model is 139 mm longer, 12 mm wider and rides on a 90 mm longer wheelbase. Although body width is only slightly increased, the track is up by 64 mm for a wider stance and improved handling. The overall design of the body shell, which is 60 per cent stiffer in torsion compared to the previous model, delivers improved vehicle aerodynamics (Cd is 0.41) and enhanced vehicle fuel economy. The body is “shrink-wrapped” to the package, enabling designers to emphasize the powerful wheel arch flares. Larger taillamps feature red and clear lenses for an upscale appearance. Overall, the new Jeep Grand Cherokee preserves the right-size package that is critical for off-road use and provides nimble on-road handling.
All-new interior provides next-generation sophistication
Jeep Grand Cherokee’s new interior is updated and inviting with a two-tone instrument panel, door trim and new finishes. Seat contours are precise and ergonomic with increased seat track travel. Comfortable head room plus increased shoulder room, leg room and front hip room add a feeling of even more spaciousness to the interior. The dramatic and elegant instrument panel design offers a high degree of precision and control. In the cargo area, features such as a reversible load floor panel and numerous luggage tie-down points enhance versatility and storage. The Grand Cherokee also receives an available Boston Acoustics six-speaker premium sound system and a six stacker CD player.
Complementing these features is a quieter interior, thanks to driveline NVH (noise, vibration and harshness) improvements, wind noise reductions and the use of innovative noise dampening materials within the body structure and engine compartment.
All-new suspension and steering system provides confident ride and handling
An all-new independent front suspension provides the driver with a greater sense of precision and control, more precise steering and reduces head toss. Front suspension wheel travel is increased by more than 10 per cent over the previous generation vehicle and a tight turning diameter of 11.2 metres provides for nimble handling. The new five-link rear suspension geometry, including a track bar, also improves lateral stiffness to match that of the front suspension for optimum handling.
Also standard for the first time on the Jeep Grand Cherokee is an Electronic Stability Program, which aids the driver in maintaining vehicle directional stability in severe driving manoeuvres on any type of surface. Using signals from sensors throughout the vehicle, the system determines the appropriate brake and throttle adjustments to enhance directional stability of the vehicle.
Jeep Grand Cherokee also features a new electronic rollover mitigation system that anticipates critical situations for the vehicle that may lead to a rollover condition. This system observes and monitors the driver input, vehicle roll attitude and lateral force, while estimating the potential for a rollover situation. The electronic rollover mitigation system reduces engine torque and applies a short burst of full braking to the appropriate wheel to stabilize the vehicle.
Jeep Grand Cherokee’s new rack-and-pinion steering system imparts a more precise steering feel to the driver than the previous recirculating ball system. Even with the increase in wheelbase and track, Grand Cherokee’s nimbleness and tight turning diameter are maintained with the new steering system.
Class-leading four-wheel-drive capabilities
Two new full-time four-wheel-drive systems are available on Jeep Grand Cherokee. Quadra-Trac II® incorporates the new NV245 transfer case that provides full-time active four-wheel drive, which anticipates and prevents wheel slip for optimum traction during a wide range of conditions. The NV245 also includes electronic shift with a true low-range gear.
Even more sophisticated, Quadra-Drive II® takes unparalleled Jeep capability to an even higher level using Electronic Limited Slip Differentials (ELSD) — front, centre and rear — offering customers the ultimate in off-road capability. ELSD replaces the Vari-Lok® progressive axles used in previous generation Jeep vehicles for even quicker response to changing conditions and greater torque capacity.
With Quadra-Drive II, Jeep Grand Cherokee offers an electronic engagement of torque biasing for the front axle, as well as the rear. Therefore, the torque transfer is faster and almost 100 per cent of the torque can be distributed to any of the four wheels.
Two production plants to meet global demand
To meet the anticipated demand for the new Jeep Grand Cherokee, two world-class facilities are employed to build the vehicle. The Jefferson North Assembly Plant in Detroit, Michigan (USA), began production of the new model in the third quarter of 2004. Assembly of vehicles for European and right-hand-drive markets, including Australia, takes place at the Magna Steyr Manufacturing Facility in Graz, Austria.
The new Grand Cherokee will start to reach dealer showrooms across Australia from July for petrol models and from August for diesel models.
Features at a glance
Jeep Grand Cherokee Laredo standard features
Choice of two engine/transmission/4x4 system combinations:
4.7-litre V8 engine mated to a five-speed automatic transmission, with Quadra-Trac II full-time four-wheel-drive system
3.0-litre V6 CRD engine mated to a five-speed automatic transmission, with Quadra-Drive II full-time four-wheel-drive system
Short and long-arm independent front suspension
Five-link rear suspension
Rack-and-pinion steering
Four-wheel disc brakes with ABS
Traction Control System
Electronic Stability Program
Electronic rollover mitigation system
17-inch satin silver finish wheels and tyres
Power eight-way driver seat and four-way front passenger seat with adjustable lumbar support
60/40 split-folding rear seat with folding outboard head restraints and retractable cup holders in seat cushions
Electronic Vehicle Information Center
Dual-zone heating, ventilation and cooling system
Tyre pressure monitoring system
Sentry Key® engine immobilizer and remote keyless entry
Advanced multi-stage driver and front passenger air bags
1909 L of cargo volume
Cargo storage with reversible load-floor and water-resistant storage compartment
AM/FM stereo with CD and changer controls
Front and rear full-length side-curtain air bags
Adjustable roof rails
Jeep Grand Cherokee Laredo optional features
Skid plate package, including skid plates for the fuel tank, transfer case and front suspension
Powered sun roof with express open/close
Boston Acoustics six-speaker premium sound system with 276-watt digital amplifier and a six-stacker CD unit
Off-road package (available on the 4.7-litre Laredo model), including skid plate package, fog lamps and Quadra Drive II
Jeep Grand Cherokee Limited standard features
In addition to Jeep Grand Cherokee Laredo standard features (listed above), the Limited model adds:
Quadra-Drive II system for all engine variants
Unique 17-inch polished aluminium wheels
Power folding exterior mirrors
Jeep Memory System (controls power seats and exterior mirrors)
Leather-wrapped steering wheel
Leather interior trim
Electrochromic interior rearview mirror
Rain-sensing automatic wipers
Boston Acoustics six-speaker premium sound system with 276-watt digital amplifier and a six-stacker CD unit
ParkSense rear park assist
Heated driver and front passenger seats
Jeep Grand Cherokee Limited optional features
5.7-litre HEMI V8 engine with Multi-Displacement System and five-speed automatic transmission including Quadra-Drive II
Skid plate package, including skid plates for the fuel tank, transfer case and front suspension
Climate package including powered sun roof with express open/close and deep tint glass
Pricing
Jeep has kept a tight reign on pricing for the third generation Grand Cherokee.
Prices start from $56,490 for the Grand Cherokee Laredo 4.7-litre V8, $59,090 for the 3.0-litre CRD V6 and $71,990 for the range topping 5.7-litre HEMI V8.
Jeep Grand Cherokee Laredo 4.7-litre V8 $56,490
Jeep Grand Cherokee Laredo 3.0-litre CRD V6 $59,090
Jeep Grand Cherokee Limited 4.7-litre V8 $66,490
Jeep Grand Cherokee Limited 3.0-litre CRD V6 $69,090
Jeep Grand Cherokee Limited 5.7-litre HEMI V8 $71,990
STYLING – EXTERIOR & INTERIOR
Contemporary exterior design and functional interior move Jeep® Grand Cherokee forward
Refreshing modern look moves traditional Jeep® design forward
Athletic appearance complements its capability
Comfortable, new and inviting two-tone interior
When it came time to design the all-new Jeep® Grand Cherokee, keeping what customers love about the previous generation vehicle, while incorporating numerous improvements and breaking exciting new ground, was a delicate balance for the design team.
“There is no doubt the Jeep brand is an American icon, so it’s important we stay true to the Grand Cherokee’s design heritage, as well as the elements customers tell us they love about the vehicle,” said Rick Aneiros, vice president — Jeep design.
“We’ve taken some of the traditional design cues and moved them forward to capture a look and feel that’s refreshing and timeless. The result is nothing short of an authentic modern Jeep,” said Aneiros.
Exterior form is poised and ready for action
The Jeep Grand Cherokee’s new design offers an athletic and contemporary appearance — longer, wider and lower in overall height than the model it replaces — rendering it poised and ready for action. The new exterior design has a higher belt line with deeper doors and shallower glass for a reduced glass-to-body proportion. The wider track pushes the wheels out to the body edges, giving Grand Cherokee a secure appearance of being planted on the road.
Signature features of the vehicle remain, such as the famous seven-slot grille that boldly dominates the front view and the traditional trapezoidal wheel arches. The Jeep Grand Cherokee Laredo will feature a painted body-colour grille, while a chrome-plated grille will distinguish the Limited version.
“The challenge with a new Jeep design is to encapsulate that limitless capability and attitude with an appearance that is fresh, fitting and timeless,” said John Sgalia, director — Jeep interior and exterior design.
“Additionally, we know there are certain elements that can’t change on a Jeep because our customer base is very knowledgeable and has very specific demands,” said Sgalia.
For the high-performance halogen headlamps, designers adopted a rounded traditional Jeep appearance and gracefully integrated them into a powerful bonnet form. The aluminium bonnet is 42 per cent lighter than the previous steel component and features sophisticated nacelles — bonnet forms that protect and shelter the headlamps. The bonnet, air dam and exterior mirrors were developed in the Chrysler Group’s full-size leading-edge wind tunnel in Auburn Hills, Michigan, to minimize wind noise and drag and maximize aerodynamic benefits. The air dam is removable for serious off-road driving.
The shape of the body sides have been thoughtfully designed to protect the flanks of the vehicle from potential road debris thrown off the tyres. The heavy side cladding used on the previous model is replaced with a more efficient body-side shape and mouldings that are incorporated into the design. The doors are skinned with bake-hardened steel for enhanced impact resistance and the body-side mouldings have the Grand Cherokee name integrated for a high quality look and feel.
Seen in profile, the new Jeep Grand Cherokee has a proportionately longer bonnet and the front wheels are moved forward, further from the base of the windshield, placing more emphasis on the engine bay. The more steeply sloping A-pillars, longer bonnet and higher body-to-glass ratio combine to visually communicate an even more powerful image.
At the rear, larger taillamps feature red and clear lenses for a look that presents a premium feel without being overstated. Brand and model badges are now injection-moulded and chrome-plated to communicate a richness and sense of precision.
Interior design both elegant and functional
The new Jeep Grand Cherokee takes capability and refinement to new levels, proving there is no reason why a serious off-road vehicle cannot also be immensely comfortable and polished. A new and inviting interior awaits occupants with a rich two-tone, dark upper and lighter lower colour scheme, new instrument panel treatment, new door trims and up-market interior finishes.
The seats are beautifully crafted with contours that are precise, firm and ergonomic, featuring a new robust structure. They are purpose-built and designed for long-distance comfort with trim styles different for each model. The Laredo features cloth, while the Limited seating is in two-tone leather with perforated leather seat inserts. Front seat travel is increased by 50 mm and 54 mm of vertical adjustment is available. At the back, the rear seat cushion is mounted 17 mm higher than the front seats to provide greater visibility for rear passengers.
The dramatic and elegant instrument panel design offers a high degree of precision in its fit, finish and operation. The instrument panel features a dark upper colour and lighter lower colour. Multiple bins have been added for additional storage.
A new precise four-gauge instrument cluster with LED illumination features black gauges with white graphics and red pointers for reading ease in all conditions. On the Limited model, the gauges are surrounded by chrome accent rings.
In the cargo area, versatility and storage reign. A new reversible load floor panel is carpeted on one side and offers easy-to-clean plastic on the other. The plastic side includes a large shallow tray for added utility. The rear seat cushion and backrest are split 60/40 and fold almost fully flat to create a wide uncluttered load area.
Concert-hall quality sound system
The standard audio equipment for Jeep Grand Cherokee is an AM/FM stereo radio with single-disc CD player. Limited models come equipped with a Boston Acoustics six-speaker premium sound system and a six stacker CD player. The radio aerial is located in the rear window glass.
The Boston Acoustics sound system has a 276-watt amplifier and six speakers — two 8.9 cm mid-to-high frequency units in the instrument panel, two 15.2 x 22.9 cm woofers in the front doors and two similar size full-range units in the side walls of the load area.
The amplifier features Digital Signal Processing for a clean sound with minimal distortion. Boston Acoustics sound performance is characterized by a smooth octave-to-octave tonal balance with natural frequency response and a distortion-free, uncoloured presentation that is faithful to the artist’s original recording.
ENGINES & TRANSMISSIONS
Broad range of powertrains offer smooth and durable performance
First-time availability of 5.7-litre HEMI® with Multi-Displacement System (MDS) in a Jeep® vehicle
New 3.0-litre CRD delivers class-leading torque and towing
New W5A580 automatic transmission for diesel engine
Beneath the athletic exterior of the all-new Jeep® Grand Cherokee lies a host of engineering innovations and improvements to deliver significant customer benefits. The 5.7-litre HEMI® leads the powertrain line-up, joining an all-new 3.0-litre common-rail turbo diesel (CRD) engine (available from August) and the 4.7-litre petrol powerplant, plus two five-speed automatic transmissions. This wide range of customer choices has been developed to provide smooth performance and a premium driving experience whether on-road or off-road.
Two powerful petrol engines
The new Jeep Grand Cherokee offers customers the option of two petrol engines: the new 5.7-litre HEMI V8 engine, available for the first time on a Jeep vehicle and the proven 4.7-litre PowerTech™ V8.
On the 5.7-litre HEMI engine, the Multi-Displacement System (MDS) deactivates half the cylinders during cruising and light acceleration to increase fuel economy by up to 20 per cent, depending on driving conditions. The transition from eight cylinders to four is completed in 40 milliseconds (0.040 seconds) without any driver intervention needed and is seamless to the driver and passengers.
Ninety per cent of peak torque is available from 2400 to 5100 rpm for excellent performance while trailer towing or travelling off-road, as well as during regular city and highway driving. A sophisticated Electronic Throttle Control system tailors throttle response to pedal movement based on operating conditions and when cruise control is activated, maintains a more consistent vehicle speed on rolling grades than was possible with the previous mechanical throttle.
This control does not come at the expense of performance. The 5.7-litre HEMI engine provides outstanding class-leading power and torque, at 240 kW and 500 Nm and impressive acceleration (0-100 kph in just over seven seconds).
The 4.7-litre V8 engine features numerous improvements and refinements for its latest application in the new Jeep Grand Cherokee. Maximum power is rated at 170 kW at 4500 rpm and maximum torque is 410 Nm at 3600 rpm.
New 3.0-litre CRD engine
The compact and lightweight 3.0-litre CRD engine is a “next-generation” power unit producing class-leading levels of torque and towing. Based on the latest Mercedes-Benz technology, this all-new diesel engine offers outstanding performance along with the refinement and efficiency buyers are looking for.
The concept of diesel driving pleasure reaches a new level for Jeep with the new CRD engine. As the successor to the five-cylinder in-line 2.7 CRD engine, it offers a 33 per cent increase in power and 28 per cent increase in torque, ensuring faster acceleration, brisk intermediate sprints and a higher top speed.
With Bosch high-pressure fuel injection (1600+ bar), a variable geometry turbocharger and four valves per cylinder, the new engine meets Euro 4 emissions standards. Maximum power is 160 kW at 4000 rpm and peak torque is 510 Nm from just 1600 rpm.
The choice of materials, design, fuel injection and engine management system reflect the state of the art. Unlike many other diesel engines in this displacement and output class, the 3.0-litre CRD features an aluminium crankcase with cast-in grey iron cylinder liners, which make a major contribution to weight reduction. As a result, the new V6 weighs a total of only 208 kg (approximately).
The new engine is an exceptionally smooth running power unit due to enhancements such as low-friction valve gear, larger bearings for the crankshaft, connecting rods made from a new alloy and a counter-rotating balancer shaft between the cylinder banks. A quick-start glow system shortens preheating time to just a moment, so that the diesel is nearly as quick to start as a petrol engine.
In addition, for the diesel engine, a kick-down switch is now added to the accelerator pedal. This detent, reached before the full travel of the pedal, is intended to reduce transmission kick-downs during normal driving but still allow for full pedal travel when a quicker acceleration is wanted by the driver.
Two five-speed transmissions
An all-new W5A580 five-speed automatic transmission offers smooth shifts and optimum fuel economy with the 3.0-litre CRD engine.The 5-45RFE five-speed automatic transmission used with the 5.7-litre HEMI and 4.7-litre V8 petrol engines has been refined for higher-quality shifts while increasing the Jeep Grand Cherokee’s maximum towing capacity.
Both transmissions feature Electronic Range Select driver interactive shift control for the first time on Jeep Grand Cherokee. The shifter provides fully automatic shifting in the “Drive” position, or the driver can manually select each gear sequentially by moving the shift lever left or right from the “Drive” position. This gives the driver the control to precisely match any on-road or off-road driving requirement.
ENGINEERING
All-new 4x4 systems and running gear enhance on-road refinement and off-road capability
Two full-time 4x4 systems offer command and control of all road conditions
Electronic Limited Slip Differentials — front, center and rear
All-new suspension and steering give drivers greater precision
With two all-new 4x4 systems that combine the legendary Jeep® off-road capability with refined on-road driving manners, the all-new Jeep Grand Cherokee sets a new benchmark in the four-wheel-drive market. The two unique full-time 4x4 systems offer customers the opportunity to choose the system which best suits their driving needs.
“The legendary reputation of the Jeep Grand Cherokee is based on its 4x4 systems,” said Craig Love, vice president — rear wheel drive product team and core team leader. “The Jeep engineering team made significant strides to ensure that the new Jeep Grand Cherokee not only maintained its off-road reputation, but also improved its on-road driving manners.”
Quadra-Trac II®
The new Quadra-Trac II® 4x4 system for the Jeep Grand Cherokee gives customers the benefit of the NV245 active transfer case and the Brake Traction Control System (BTCS).
The transfer case is set up to split torque 48 per cent front and 52 per cent rear in dry, good traction conditions and varies automatically depending on road conditions. It takes input from a variety of sensors to determine tyre slip at the earliest possible moment and take corrective action. The system also uses Throttle Anticipate — sensing quick movement in throttle from a stop — and takes steps to maximize traction before tyre slippage even occurs.
Torque is transferred laterally to the individual wheels as needed by the BTCS to maintain traction in changing or slippery road conditions. When the system senses tyre slip, it applies and modulates brake pressure to the slipping wheel and automatically directs torque to the tyres with the best traction.
Quadra-Trac II features an electronic shift mechanism for ease of use. The transfer case includes a neutral position and the 4-Low low-range gear ratio is 2.72 to 1. This transfer case is the same one used in the new Quadra-Drive II® system. Quadra-Trac II is standard on Jeep Grand Cherokee Laredo models with the 4.7-litre V8 engine.
Quadra-Drive II®
The Quadra-Drive II 4x4 system offers customers the ultimate in off-road capability. It combines the NV245 full-time transfer case with three Electronic Limited Slip Differentials (ELSD) — front, centre and rear — for outstanding tractive performance.
The system instantly detects tyre slip and smoothly distributes engine torque to the tyres with traction. In some cases, the vehicle will even anticipate low traction and adjust to proactively limit or eliminate tyre slip.
The heart of the system is the NV245 active transfer case. This transfer case includes a centre differential coupled with an electronically controlled clutch pack, varying it from a completely open state to completely locked — and infinite possibilities in between. The 4-Low low-range gear ratio is 2.72 to 1.
A key component in the Quadra-Drive II system is the ELSD trio. Automatic torque transfer front-to-rear is achieved through the centre ELSD and automatic lateral torque distribution via the front and rear ELSD. The front and rear ELSD also use electronically controlled clutch packs to automatically and instantly vary from full slip to full lock at each axle. This maximizes traction when needed without any of the on-road drawbacks normally associated with such a robust 4x4 system.
All components of the system work together, continually monitoring needs, to provide smooth and automatic application of the components while improving the day-to-day on-road driving experience. For example, the ELSD releases the clutch pack in the front axle during turns to allow normal operation of the differential and prevent system wind-up and binding. Quadra-Drive II is standard on Jeep Grand Cherokee Limited models with the 4.7-litre V8 engine, or any model fitted with the 3.0-litre CRD or 5.7-litre HEMI engine.
All-new running gear
The all-new suspension for the Jeep Grand Cherokee is designed to improve the on-road ride and handling without compromising off-road performance. The immensely strong body shell — torsional stiffness is increased by 60 per cent — provides a high-rigidity stable base on which to mount the new suspension components, while the increased wheelbase, up by 90 mm and the wider track, up 64 mm, give the Grand Cherokee an enhanced ride and greater stability.
The short and long-arm, double-wishbone front suspension provides more lateral response and stiffness than a solid-axle system. This delivers a greater feeling of steering precision and control to the driver, enhancing the benefits of the new rack-and-pinion steering system. The new suspension design reduces unsprung weight by 45.5 kg and has a total wheel travel of 225 mm for much improved ride quality.
The rear live axle and five-link suspension, with separate shock absorbers and coil springs, features wide-based control arms for control of axle wind-up and increased lateral stiffness for compatible handling characteristics with the new front suspension.
For the new model, hydraulic powered, variable ratio rack-and-pinion steering replaces the previous recirculating ball system. The new system is more responsive, more precise and allows accurate placing of the vehicle at all times, on all surfaces. Despite the new model’s slightly larger dimensions, traditional Jeep agility is maintained and the turning circle is only 11.2 metres.
SAFETY
Jeep® Grand Cherokee boosts active and passive safety for consumers
Standard ABS, TCS and ESP advance the active safety protection
Built-in state-of-the-art energy management features
Grand Cherokee receives top government safety rating from NHTSA
Practical innovation has been applied to the all-new Jeep® Grand Cherokee through integrated safety and security features which were designed into the vehicle from the start.
Systems such as the Electronic Limited Slip Differentials of the Quadra-Drive II® system and Electronic Stability Program contribute to the Jeep Grand Cherokee’s exceptional vehicle dynamics. Systems like advanced multi-stage front air bags and full-length side curtain air bags, tyre pressure monitoring and ParkSense™ rear park assist (on Limited models) offer the latest innovations in occupant protection, safety and security on the road.
“Applying the latest available technology to protect occupants is of utmost importance to the Chrysler Group,” said Craig Love, vice president — rear wheel drive product team and core team leader.
“By integrating safety and security technologies during the design phase, we’re able to offer our customers the tools to avoid collisions, as well as protection in the event of a collision,” said Love.
Chrysler Group’s vehicle development engineers test beyond current safety regulations to ensure optimum performance and improve vehicle safety. They evaluated the Jeep Grand Cherokee with tests beyond current U.S. government mandates, such as the 40 mph (64 kph) front offset and 50 mph (80 kph) rear impact tests. The 40 mph front impact simulates a high-speed vehicle-to-vehicle crash. The 50 mph offset rear-impact test evaluates fuel system integrity when a vehicle is hit from behind at high speed, on the side nearest the fuel filler tube.
In addition, Chrysler Group engineers used pole tests to evaluate occupant protection and peak energy loadings during a side impact. These tests mimic accidents with narrow objects, such as hitting a lamppost or tree, to evaluate body shell deformation and the side air bag sensing system. Crash examples may be severe because the crash forces are concentrated in a relatively small area of the vehicle.
Thanks to this diligent effort, the new Jeep Grand Cherokee in the U.S. received the government’s highest ratings for frontal and side-impact crash protection (five stars) in testing by the National Highway Traffic Safety Administration (NHTSA).
Accident avoidance features
To optimise overall driving performance, the Jeep Grand Cherokee offers many accident avoidance systems. The anti-lock brake system (ABS) with emergency brake assist reduces brake pressure at the wheels and prohibits wheel lock during a braking event. The system monitors the rotation and wheel slip of each wheel. Brake pressure is applied and modulated to achieve optimal performance for braking and steerability under all surface conditions including dry, wet, snow and ice covered pavement.
During acceleration, the traction control system (TCS) is activated to avoid excessive wheel slip. This system observes and monitors each wheel and can estimate the brake pressure needed to control the wheel or wheels. All-speed TCS uses Electronic Throttle Control to increase the operating speed range by estimating the engine torque reduction needed to control the wheel or wheels in addition to the brake engagement.
The vehicle also features the Electronic Stability Program (ESP) as standard. ESP observes and monitors the overall vehicle behaviour, in addition to each wheel, under all driving situations and conditions. The system compares the intended course given by the driver input (steering angle) with the measured behaviour of the vehicle. In case of deviations or instability of the vehicle, ESP engages through a reduction of the engine torque and active brake pressure engagement on one or more wheels.
Jeep Grand Cherokee also features a new electronic rollover mitigation system that anticipates critical situations for the vehicle that may lead to a rollover condition. This system observes and monitors the driver input, vehicle roll attitude and lateral force, while estimating the potential for a rollover situation. The electronic rollover mitigation system reduces engine torque and applies a short burst of full braking to the appropriate wheel to stabilize the vehicle.
A tyre pressure monitoring system is standard on all Jeep Grand Cherokee models. The system includes pressure sensor modules that are integrated with the valve stems of all four road wheels, as well as the spare tyre. Each module sends continuous radio frequency signals to a receiver and informs occupants when the pressure is too low. The system displays tyre pressure through the Electronic Vehicle Information Centre.
Crash protection features
The new Jeep Grand Cherokee continues to be equipped with the latest passive safety technology, such as advanced multi-stage front air bags and side-curtain air bags.
State-of-the-art energy management features in the body structure and chassis work in conjunction with the air bag and seat belt systems. The body shell of the new Jeep Grand Cherokee has enhanced impact resistance. It is 60 per cent stiffer in torsion than the previous model, incorporates longitudinal rails beneath the floor pan which are 68 per cent stronger and is fitted with front and rear doors made from bake-hardened steel.
Front seat belts are equipped with belt pretensioners and constant force retractors. Pretensioners tighten the seat belt to help keep the occupant in place, while constant force retractors balance the load on the upper body, reducing injuries from excessive seat belt forces. The driver’s side is also equipped with BeltAlert® — an enhanced seat belt reminder system that periodically activates a chime and illuminates a light in the instrument panel to remind the driver to buckle up. Head restraints are standard in every seating position.
QUALITY & DURABILITY
Quality and durability are built into new Jeep® Grand Cherokee by design
Chrysler Development System (CDS) delivers all-around improvements
More than 11.3 million kilometres of customer-equivalent test driving
Worldwide extreme testing used to validate all-new model
The Jeep® Grand Cherokee uses state-of-the-art technology to produce the highest vehicle quality in one of the brand’s most durable forms. It blends past and future by evolving its Jeep heritage into a sophisticated and contemporary execution of an icon.
The new Jeep Grand Cherokee was designed and engineered under the Chrysler Development System (CDS), the comprehensive, coordinated and disciplined product creation process that improves quality and speed-to-market while reducing costs and encouraging practical innovation in new products. The CDS system also allows the Chrysler Group to develop vehicles that successfully meet the needs of all markets around the world.
An emphasis in CDS is the systems engineering, design and up-front planning to avoid time-consuming and costly trial-and-error methods or design and engineering changes during the latter phases of the product development cycle. With CDS, all product and process planning is completed and fully integrated before production tooling begins.
Development of the new Jeep Grand Cherokee involved hundreds of engineers working in world-class testing facilities at the DaimlerChrysler Technology Centre (DCTC) in Auburn Hills, Michigan and proving grounds located in Michigan and Arizona. These engineers logged more than 11.3 million kilometres of customer-equivalent test driving and experience in the vehicle.
The vehicle also benefited from the full-size Aero-Acoustic Wind Tunnel at the company’s Technology Centre, which was completed in 2002, along with environmental simulators on site. Engineers had the opportunity to test early, full-size clay models more than 700 times to analyse various configurations of the design to make aerodynamic changes, as well as to validate cooling and wind noise goals.
For example, dynamic sealing (similar to weather strips) was strategically placed throughout the vehicle as a result of lessons learned during testing. Exact placement of the sealing included additional cut line coverage to decrease wind noise, lower coverage to decrease road noise and upper auxiliary seals to improve water and wind management. In addition, an increased use of cavity foam and environmentally friendly water-borne sound dampening were applied in the body and paint sealing process during manufacturing.
In fact, hundreds of hours were spent in test labs to minimize noise, vibration and harshness (NVH). In the area of wind noise, testing revealed many opportunities to assist in the design, NVH and engineering process. This included the ultimate shaping of exterior mirrors, A-pillar geometry, the thickness of the side glass and seals around the door glass and liftgate.
In addition to wind noise reductions, the team used extensive testing and data to refine the new Jeep Grand Cherokee’s powertrain, providing both hardware refinements and acoustic treatments. In particular, control of critical axle assemblies – such as ring and pinion mesh profiles that were selected for minimum gear noise – were key factors in NVH reductions. Also, individual component and system balancing, as well as tightened tolerances on the rear drive shafts, were elements that were implemented early in the vehicle’s development.
During development, Jeep Grand Cherokee vehicles underwent extreme body shell torsion and suspension articulation tests derived from those tests (such as “AK3”) used to qualify Jeep vehicles for military use in past decades. Several of the new Grand Cherokee vehicles successfully completed back-to-back military test cycles, ensuring that the new Grand Cherokee will meet or exceed customers’ durability and reliability requirements. Four separate “Lap of America” trips were initiated during development phases to validate all aspects of vehicle performance. Trips from Detroit to all areas of the United States were undertaken to ensure the function of all systems under all ranges of customer use, including trailer towing and altitude testing.
Validation trips worldwide were also conducted over the broadest range of roads and temperature variations, from -5 degrees Celsius to 50 degrees Celsius in such locations and conditions as:
Chile-Cold weather validation and altitude test to 4267 m
Manitoba, Canada-Cold weather validation
Sweden-Electronic Stability Program, development/four-wheel-drive system development
Switzerland-Mountainous durability testing
Death Valley, California-Hot weather validation
Texas-Humid weather durability testing
Moab, Utah-Off-road development/verification
Rubicon Trail, Nevada-Off-road development/verification
Daniel Boone National Forest, Kentucky-Off-road development/verification
All of these elements are proof that not only is there “one” Jeep, but one type of Jeep testing when it comes to quality: extreme.
TECHNICAL SPECIFICATIONS
Jeep® Grand Cherokee
The information shown is based on data available at the time of publication (June, 2005).
Body and Chassis
Five-seater, four-door sport-utility vehicle with all-steel unitized body/chassis unit. Choice of three (two petrol and one diesel) longitudinally mounted front engines driving the rear or all four wheels on demand, via a five-speed automatic transmission through an electronically controlled transfer case and available electronically controlled limited slip differential front and rear axles.
Engines
3.0-litre CRD
The OM642 3.0-litre CRD is a six-cylinder engine with aluminium crankcase and cast-in grey iron cylinder liners. Fuel delivery system features common-rail injection with piezo injectors. Valvetrain features four valves per cylinder with two camshafts per cylinder bank. Turbocharger has variable geometry with electronically adjustable turbine blades assisting in delivering up to 180 bar of peak combustion pressure. Turbocharger also features electronically controlled EGR valve, air intake throttling and swirl control by means of an electronically controlled intake port shut-off. Starting is enhanced by a Quick-Start glow plug system.
Availability - Laredo and Limited models
Type - Diesel, common-rail direct injection, six-cylinder, 72-degree V-type
Capacity - 3.0 L
Maximum power -160 kW @ 4000 rpm
Maximum torque - 510 Nm @ 1600-2800 rpm
Compression ratio - 18.0:1
Bore and stroke - 83.0 x 92.0 mm
Camshafts - Twin camshafts
Valve system - 24 valves, two intake and two exhaust per cylinder
Fuel system - Direct injection, high-pressure common rail
Construction - Aluminium block with aluminium cylinder heads
Maximum engine speed - 4200 rpm, electronically limited
Fuel recommendation Diesel, - 50 ppm maximum sulphur
Emission controls - Two diesel oxidation catalysts at the close-coupled and toeboard positions
Emission class - Euro 4
5.7L HEMI® V8
Availability - Limited model
Type - Petrol, eight-cylinder, 90-degree V-type with MDS (deactivates four cylinders — 1, 4, 6 & 7 — during steady speed, low acceleration and shallow grade climbing conditions)
Capacity - 5.7 L
Maximum power - 240 kW @ 5000 rpm
Maximum torque - 500 Nm @ 4000 rpm
Compression ratio - 9.5:1
Bore and stroke - 99.5 x 90.9 mm
Camshaft - Single cam with silent chain drive, five bearings with deep fillet rolled journals and press fit torsional vibration damper
Valve system - Overhead valve, pushrod system 16 valves, one intake and one exhaust per cylinder, hydraulic lifters with roller followers
Fuel system - Sequential, multi-port electronic Injection, returnless
Construction - Deep-skirt cast-iron block with aluminium cylinder heads featuring hemispherical combustion chambers
Maximum engine speed - 5800 rpm, electronically limited
Fuel recommendation - 95 RON unleaded petrol
Emission controls - Dual three-way catalytic converters with heated oxygen sensors
Emission class - Euro 4
4.7L PowerTech™ V6
Availability - Laredo and Limited models
Type - Petrol, eight-cylinder, 90-degree V-type
Capacity - 4.7 L (4701 cc)
Maximum power - 170 kW @ 4500 rpm
Maximum torque - 410 Nm @ 3600 rpm
Compression ratio - 9.0:1
Bore and stroke - 93.0 x 86.5 mm
Camshaft - Chain-driven SOHC
Valve system - 16 valves, one intake and one exhaust per cylinder with hydraulic valve lifters
Fuel system - Sequential, multi-port electronic Injection
Construction - Cast-iron block with twin aluminium cylinder heads
Maximum engine speed - 6000 rpm, electronically limited to 5300 rpm
Fuel recommendation - 91 RON unleaded petrol
Emission controls - Dual three-way catalytic converters with heated oxygen sensors
Emission class - Euro 4
Transmissions
W5A580 five-speed automatic
Availability - Standard with 3.0-litre CRD engine
Description - Five-speed automatic with overdrive, electronic range select, tow/haul feature, adaptive electronic control, brake-park interlock and electronically modulated converter clutch
Gear ratios
1st - 3.59
2nd - 2.19
3rd - 1.41
4th - 1.00
5th - 0.83
Reverse - 3.16
Final drive ratio - 2.95
5-45RFE five-speed automatic
Availability - Standard with 5.7L and 4.7L engines
Description - Multi-speed automatic with overdrive, five forward speeds, alternate second gear, Electronic Range Select, tow/haul feature, brake-park interlock and electronically modulated converter clutch
Gear ratios
1st - 3.00
2nd - 1.67
3rd - 1.00
4th - 0.75
5th - 0.67
Reverse - 3.00
Final drive ratio - 2.50
Drivelines
Transfer case
Availability - Standard on all models
Type - NV245, on-demand four-wheel drive with electronically controlled clutch pack
Operating modes - 4WD on demand, 4WD Low
Low range ratio - 2.72:1
Torque split, front/rear - Variable with 48/52 per cent default split
Axles, front and rear
4WD systems
Differential type - Open — Laredo 4.7L, Electronic Limited Slip Differential — 3.0-litre CRD, 5.7L and Limited 4.7L
Axle ratios - 3.55:1 — 3.0-litre CRD, 3.73:1 — 5.7L and 4.7L
Gross axle weight rating - 1340 kg — front, 1452 kg — rear
Quadra-Trac II®
Standard on Laredo 4.7L. Active full-time system with two speeds (low range 2.72:1) and neutral, electronically controlled clutch pack coupling in centre differential and open front and rear differentials.
Quadra-Drive II®
Standard on 3.0-litre CRD, 5.7L and Limited 4.7L. Active full-time system with two speeds (low range 2.72:1) and neutral, electronically controlled clutch pack coupling in centre differential with front and rear Electronic Limited Slip Differentials.
Suspension and damping
Front - Short/long arm (SLA) independent with gas-charged, twin-tube coil-over shock absorbers and stabilizer bar. 22.5 cm wheel travel
Rear - Live solid axle and five-link suspension with twin upper and lower trailing tubular linking arms plus lateral track bar, coil springs, single-tube shock absorbers and stabilizer bars. 22.4 cm wheel travel
Steering
Type - Hydraulic power-assisted rack and pinion
Overall ratio - Variable: 15.8:1 — 13.9:1
Turning diameter - 11.2 m kerb to kerb
Steering turns - 2.85 turns lock to lock
Brakes
Front
Discs - 328 x 30 mm ventilated
Calipers - 48 mm dual-piston sliding calipers
Swept area - 1757 sq. cm
Rear
Discs - 320 x 14 mm solid
Calipers - 48 mm single-piston sliding calipers
Swept area - 1650 sq. cm
System
Four-wheel, four-channel ABS with active wheel speed, vehicle speed, steering wheel angle, yaw rate and lateral acceleration sensors. Standard features: all-speed Traction Control System, Electronic Stability Program, electronic rollover mitigation system, deactivation switch and Electronic Brake Distribution.
Wheels and tyres
Standard equipment listed.
Laredo
Wheel type and material - “Orbitek” cast-aluminium alloy, painted satin silver
Tyres, front and rear - 17 x 7.5 in., P245/65R17 Goodyear Wrangler BSW all-terrain
Spare tyre - full-size
Limited
Wheel type and material - “Ronin II” cast-aluminium alloy, machined face
Tyres, front and rear - 17 x 7.5 in., P245/65R17 Goodyear Wrangler BSW all-terrain
Spare tyre - full-size
Dimensions
Dimensions are in millimetres unless otherwise noted.
Exterior
Overall length - 4750
Overall width - 1870 — excluding mirrors, 2149 — including mirrors
Overall height - 1740 — with roof rack, 1785 with roof rack and cross bars
Wheelbase - 2780
Overhang, front - 854
Overhang, rear - 1106
Track, front and rear - 1575
Ground clearance (for 3.0-litre CRD and 5.7L)
At front axle - 214
At rear axle - 209
Water fording depth - 508 at 16 kph
Approach angle - 34.1°
Breakover angle - 20.4°
Departure angle - 27.0°
Interior
Front
Head room - 1008
Leg room - 1058
Shoulder room - 1502
Hip room - 1452
Seat travel - 267 — fore/aft, 100 — up/down
Rear
Head room - 999
Leg room - 901
Shoulder room - 1485
Hip room - 1248
Cargo (SAE standard)
Behind rear seats - 978 L
Behind front seats with rear seats folded - 1909 L
Weights (kg)
Laredo
Kerb weight - 3.0-litre CRD – 2142, 4.7L - 2130
Gross vehicle weight* - 2569
Gross vehicle weight rating - 2749
Limited
3.0L CRD 5.7L 4.7L
Kerb weight -
2169 2209 2157
Gross vehicle weight* -
2585 2620 2586
Gross vehicle weight rating -
2749
*Gross vehicle weight: kerb weight +passenger weight +cargo weight +maximum option weight
Capacities
Maximum towing - 3500 kg
Maximum load per axle - 1338 kg — front, 1452 kg — rear
Maximum tongue load - 140 kg
Maximum roof load - 68 kg
Fuel tank capacity - 77.7 L
Washer fluid reservoir volume - 4.9 L
3.0L CRD 5.7L 4.7L
Oil capacity (with dry filter) -
9.5 L 6.6 L 5.7 L
Engine coolant volume -
13.2 L 13.7 L 13.2 L
Fuel consumption (L/100 km)
3.0L CRD
5.7L 4.7L
Combined (ADR8101)
10.2 15.4 14.9
Performance
3.0L CRD
5.7L
4.7L
Acceleration (0-100 kph) -
9.0 sec. 7.4 sec. 9.5 sec.
Top speed (kph) -
200 208 200 |
