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.

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 related to Mercedes-Benz's W166 series.

Four wheel drive systems include Quadra-Trac I, Quadra-Trac II, and Quadra-Drive II.
Using Selec-Terrain, the driver can select modes for Auto, Sport, Snow, Sand/Mud, and Rock.

Optional Quadra-Lift height adjustable air suspension can raise the vehicle's ground clearance up to 11.1 in (282 mm).
Lift modes include Park, Aero, Normal Ride Height, Off-Road 1, and Off-Road 2.
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.
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 related to Mercedes-Benz's W166 series.
Four wheel drive systems include Quadra-Trac I, Quadra-Trac II, and Quadra-Drive II. Using Selec-Terrain, the driver can select modes for Auto, Sport, Snow, Sand/Mud, and Rock.
Optional Quadra-Lift height adjustable air suspension can raise the vehicle's ground clearance up to 11.1 in (282 mm). Lift modes include Park, Aero, Normal Ride Height, Off-Road 1, and Off-Road 2.
Jeep Grand Cherokee (WK2)