Jeep Engineering the All New Grand Cherokee Instructions
- June 15, 2024
- Jeep
Table of Contents
Jeep Engineering the All New Grand Cherokee
Product Information
Specifications
- Quadra-LiftTM air suspension system
- Lifts the vehicle up to 105.0mm (4.1 in.) from Park mode
- Maximum off-road height of 269.5mm (10.6 in.)
- All-new front and rear independent suspension
- All-new V-6 engine
Product Usage Instructions
Legendary Jeep Capability Rises to New Heights
- New Quadra-Lift™ air suspension system provides height control to a maximum ride height of 269.5mm (10.6 in.) of ground clearance, delivering legendary Jeep® off-road capability
- New Selec-Terrain™ system offers five terrain settings to match conditions
- First application of company’s all-new 3.6-liter Pentastar V-6 engine with over 10-percent improvement in fuel consumption
- Choice of two 4×4 systems: Quadra-Trac II® and Quadra-Drive® II with rear Electronic Limited-slip Differential (ELSD)
June 30, 2010, Auburn Hills, Mich. –
Among the numerous features in the all-new Jeep® Grand Cherokee, there are
three that hit the ideal balance between real-world capability and on-road
refinement. First is the all-new Quadra-Lift™ air suspension system that lifts
the vehicle up to 105.0mm (4.1 in.) from Park mode to a maximum off-road
height of 269.5mm (10.6 in.) and delivers legendary Jeep off-road capability
and on-road performance. Second is the all-new front and rear independent
suspension with improved on-road ride and handling.Third is an all-new V-6
engine that offers improved fuel consumption, performance and refinement. “Our
all-new Jeep Grand Cherokee provides everything you expect in an SUV and more
– more capability, technology, innovation and amenities,” said Phil Jansen,
Chief Engineer Model Responsible – Grand Cherokee, Chrysler Group LLC. “Grand
Cherokee is about premium on-road performance and legendary Jeep capability.
We listened to our customers and took it to the next level, adding
significantly improved on-road performance while maintaining the Jeep brand’s
legendary four-wheel-drive capability.”
All-new Air Suspension **
**
The all-new Jeep Grand Cherokee is equipped with the Quadra-Lift air suspension system. This system allows you to adjust the ride height of the vehicle for optimum performance and comfort.
For the first time on a Jeep vehicle, the Quadra-Lift system features five height settings for optimum ride performance:
- Normal Ride Height (NRH): 204.5mm (8.1 in.) of clearance offers improved fuel consumption as well as improved aerodynamics during on-road driving
- Off Road 1: Lifts the vehicle an additional 32.5mm (1.3 in.) to 237.0mm (9.3 in.) for added height in clearing obstacles
- Off Road 2: Delivers legendary Jeep off-road capability and provides an additional 65.0mm (2.6 in.) over NRH for 269.5mm (10.6 in.) of ground clearance
- Park Mode: Lowers the vehicle 40.0mm (1.6 in.) from NRH for easy ingress/egress. NRH and Park mode are driver selectable, allowing the driver full control over vehicle ride height
- Aero Mode: Lowers the vehicle 15.0mm (0.6 in.) from NRH. Aero mode is controlled by vehicle speed and adjusts for optimal performance and fuel economy
The Quadra-Lift system adds up to 105.0mm (4.1 in.) of lift span supported by four-corner air springs, providing a cushioned, premium ride. The system can operate automatically or be controlled manually using the console controls. In addition to the Quadra-Lift air suspension system, the all-new Selec-Terrain™ traction control system allows customers to choose the on- and off-road setting for optimum performance. Standard on all Jeep Grand Cherokee models for markets outside of North America, this all-new feature electronically coordinates up to 12 different powertrain, braking and suspension systems, including throttle control, transmission shift, transfer case, Hill-start Assist and Hill-descent Control.
Selec-Terrain Traction Control System
The all-new Jeep Grand Cherokee is equipped with the Select-Terrain
traction control system. This feature allows you to choose the on- and off-
road settings for optimum performance. The Selec-Terrain system electronically
coordinates up to 12 different powertrain, braking, and suspension systems to
enhance the vehicle’s capabilities.
The Selec-Terrain system offers five different driving conditions:
- Sand/Mud: Traction control and Quadra-Lift operate with sensitive response to wheel spin, and torque is tuned for optimal performance
- Sport: Provides enhanced on-road “fun-to-drive” capability
- Auto: Automatically adapts to any on- or off-road situation
- Snow: Vehicle traction adjusts for ultimate performance over snow-covered roads
- Rock: Quadra-Lift air suspension system raises to maximum height of 269.5mm (10.6 in.), while the transfer case, differentials and throttle coordinate to provide low-speed control
Coupled with the Quadra-Lift air suspension system, the Select-Terrain system provides an adjustable suspension span, delivering world-class capability. With the front air dam removed and the available Quadra-Lift air suspension system, the all-new Jeep Grand Cherokee features a 34.3-degree approach angle, a 27.3-degree (to rear recovery tow hook) departure angle and 23.1-degree breakover angle. The all-new front and rear independent suspensions feature isolated front and rear suspension cradles along with variable-rate rear springs to deliver improved on-road handling and comfort while complementing the vehicle’s legendary off-road capability. The new rear suspension also allows the spare tire to be stored inside the vehicle as opposed to underneath. The Jeep Grand Cherokee is also available with load-leveling shocks. Shocks react to payload levels and mechanically increase vehicle height when the vehicle has added rear payload. Advantages to load-leveling shocks include improved load handling and trailer-tow performance. Load- leveling shocks are available with trailer-tow packages that do not already have the Quadra-Lift air suspension system.
Premium Powertrains
The all-new Jeep Grand Cherokee is available with two leading engine options for markets outside of North America: the NEW 3.6-liter Pentastar V-6 and a 5.7-liter V-8. Jeep Grand Cherokee features the first application of the all- new 3.6-liter Pentastar V-6 engine. This all-new 3.6-liter V-6 engine is standard on the Grand Cherokee and features an all-new design with double overhead camshafts (DOHC) and a high-pressure die-cast aluminum cylinder block in a 60-degree configuration. It features Variable-valve Timing (VVT) and delivers 210 kW (286 hp DIN) of power at 6,350 rpm and 347 N•m (256 lb.-ft.) of torque at 4,300 rpm, providing customers more than a 10-percent improvement in fuel consumption. The all-new Jeep Grand Cherokee offers trailer tow capability of up to 2268kg (5,000 lbs.) on models equipped with the Pentastar V-6 engine. The reduction of noise, vibration and harshness (NVH) was a key objective for every component during the design phase of the engine and was achieved by utilizing advanced computer-aided engineering techniques. Structural, intake and exhaust areas of the engine are designed to deliver low levels of overall noise and achieve specific sound quality goals. The result is a refined engine in all applications. Idle quality refinement is improved due to use of the dual-independent cam phasing. An environmentally friendly oil filter element and optional integrated oil cooler are used to aid service and enhance reliability. The use of long-life spark plugs and a high-energy, coil-on-plug ignition system also help to reduce cost of ownership. In addition to the all-new V-6 engine, the Jeep Grand Cherokee is available with the legendary 5.7-liter Multi-displacement System (MDS) V-8 engine. Featuring VVT, it delivers 259 kW (352 hp DIN) of power at 5,200 rpm and 520 N•m (384 lb.-ft.) of torque at 4,200 rpm. This engine delivers performance and towing capability, and fuel efficiency with the fuel-saving MDS. The 5.7-liter engine’s fuel-saving MDS seamlessly alternates between smooth, efficient four- cylinder mode when less power is needed and V-8 mode when more power is in demand. This optimizes fuel economy when V-8 power is not required, without sacrificing vehicle performance or capability. The engine’s VVT improves fuel economy in two ways. First, it reduces the engine’s pumping work by closing the intake valve later. Second, it increases the expansion process of the combustion event. This allows more work to be transferred to the crankshaft instead of being rejected out of the exhaust port as heat. VVT improves engine breathing, which improves engine efficiency and power. The all-new Jeep Grand Cherokee offers unsurpassed trailer tow capability of up to 3500kg (7,717 lbs.) when equipped with the 5.7-liter V-8 engine. For international markets, the all-new Jeep Grand Cherokee will be available in right-hand drive in late 2010.
Transmissions
Paired with the all-new 3.6-liter V-6 engine is the proven W5A580 five-speed
automatic transmission that delivers smooth shifts and optimum fuel economy.
The five-speed W5A580 transmission includes Electronic Range Select (ERS)
driver-interactive manual control and an electronically modulated torque
converter clutch.
The 5.7-liter V-8 engine is mated to the 545RFE multi-speed automatic
transmission. The five-speed transmission includes three planetary gear sets,
one over-running clutch with ERS driver interactive control and an
electronically controlled torque converter clutch.
Go Anywhere 4×4 Systems
The Jeep Grand Cherokee offers two 4×4 systems in markets outside of North
America: standard Quadra-Trac II® and available Quadra-Drive® II. Quadra-Trac
II’s two-speed transfer case uses input from a variety of sensors in order to
determine tire slip at the earliest possible moment and take corrective
action. The system uses Throttle Anticipate to sense quick movement in the
throttle from a stop and maximizes traction before slippage occurs. When tire
slippage is detected, as much as 100 percent of available torque is instantly
routed to the axle with the most traction. Quadra-Drive II, with a rear
Electronic Limited-slip Differential (ELSD), delivers industry-leading
tractive capability. The system instantly detects tire slip and smoothly
distributes engine torque to tires with traction. In some cases, the vehicle
will anticipate low traction and adjust in order to proactively limit or
eliminate slip.
Body Structure
Continuing to build on the Jeep brand’s legendary off-road capability, the
all-new Grand Cherokee adds premium on-road performance to complete the
package.
The all-new Jeep Grand Cherokee’s premium SUV on-road manners and legendary
Jeep ruggedness are achieved with more than 5,400 welds in the body alone. The
all-new body structure’s torsional stiffness is 146-percent stiffer than the
previous Grand Cherokee for improved durability and reduced NVH, with more
than 3,700mm of arc welding and 100mm of structural adhesive augment welding.
This marks a 53-percent increase in spot welds, a 42-percent increase in arc
welds and a 38-percent increase in structural adhesive compared to the
previous Jeep Grand Cherokee.
Additional information and news from Stellantis are available at:
https://media.stellantisnorthamerica.com
Front and Rear Independent Suspensions
The all-new Jeep Grand Cherokee features front and rear independent
suspensions. These suspensions are designed to improve on-road handling and
comfort while maintaining the vehicle’s legendary off-road capability. The
front and rear suspensions feature isolated suspension cradles and variable-
rate rear springs. This combination ensures improved handling and comfort,
especially on rough terrains.
Load-leveling Shocks
The Jeep Grand Cherokee is also available with load-leveling shocks. These
shocks react to payload levels and mechanically increase the vehicle’s height
when rear payload is added. Load-leveling shocks improve load handling and
trailer-tow performance. They are available with trailer-tow packages that do
not already have the Quadra-Lift air suspension system.
FAQ (Frequently Asked Questions)
-
Q: How many height settings does the Quadra-Lift air suspension system have?
A: The Quadra-Lift air suspension system has five height settings: Park mode, Aero mode, Normal ride height mode, Off-road I mode, and Off-road II mode. -
Q: What are the driving conditions offered by the Selec-Terrain traction control system?
A: The Selec-Terrain traction control system offers five driving conditions: Auto, Snow, Sand, Mud, and Rock. -
Q: Can I manually control the Quadra-Lift air suspension system?
A: Yes, the Quadra-Lift air suspension system can be controlled manually using the console controls. -
Q: Are load-leveling shocks available for all Jeep Grand Cherokee models?
A: Load-leveling shocks are available with trailer-tow packages that do not already have the Quadra-Lift air suspension system.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>