Jeep 2010 Grand Cherokee, Owner'S Manual

Page: 259 / 466

NOTE: If shift conditions/interlocks are not met, a
“CHECK SHIFT PROCEDURES” message will flash from
the Electronic Vehicle Information Center (EVIC). Refer
to “Electronic Vehicle Information Center (EVIC)” in
“Understanding Your Instrument Panel” for further
information.
Quadra-Drive
姞
II System – If Equipped
The optional Quadra-Drive
威
II System features three
torque transfer couplings. The couplings include Elec-
tronic Limited-Slip Differential (ELSD) front and rear
axles and Quadra-Trac II
威
transfer case. The optional
ELSD axles are fully automatic and require no driver
input to operate. Under normal driving conditions, the
units function as standard axles, balancing torque evenly
between left and right wheels. With a traction difference
between left and right wheels, the coupling will sense a
speed difference. As one wheel begins to spin faster than
the other, torque will automatically transfer from the
wheel that has less traction, to the wheel that has traction.
While the transfer case and axle couplings differ in
design, their operation is similar. Follow the Quadra-Trac
II
威
transfer case shifting information, preceding this
section, for shifting this system.
ON-ROAD DRIVING TIPS
Utility vehicles have higher ground clearance and a
narrower track to make them capable of performing in a
wide variety of off-road applications. Specific design
characteristics give them a higher center of gravity than
ordinary cars.
An advantage of the higher ground clearance is a better
view of the road, allowing you to anticipate problems.
They are not designed for cornering at the same speeds as
conventional two-wheel drive vehicles any more than
low-slung sports cars are designed to perform satisfacto-
rily in off-road conditions. If at all possible, avoid sharp
258 STARTING AND OPERATING