2010 JEEP GRAND CHEROKEE differential

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 II System – If Equipped
The optional Quadra-Drive II System features three
torque transfer couplings. The couplings include Elec-
tronic Limited-Slip Differential (ELSD) front and rear
axles and Quadra-Trac II 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
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

WARNING!
The ABS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded by prevailing road conditions. The
ABS cannot prevent accidents, including those re-
sulting from excessive speed in turns, driving on
very slippery surfaces, or hydroplaning. Only a safe,
attentive, and skillful driver can prevent accidents.
The capabilities of an ABS-equipped vehicle must
never be exploited in a reckless or dangerous manner
which could jeopardize the user’s safety or the safety
of others.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and engine
power is reduced to provide enhanced acceleration andstability. A feature of the TCS system functions similar to
a limited-slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is
spinning faster than the other, the system will apply the
brake of the spinning wheel. This will allow more engine
torque to be applied to the wheel that is not spinning.
This feature remains active even if TCS and ESP are in
either the “Partial Off” or “Full Off” modes. Refer to
“Electronic Stability Program (ESP)” in this section for
more information.
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by sens-
ing the rate and amount of brake application and then
applies optimum pressure to the brakes. This can help
reduce braking distances. The BAS complements the
anti-lock brake system (ABS). Applying the brakes very
quickly results in the best BAS assistance. To receive the
5
STARTING AND OPERATING 271

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission MOPARATF+4Automatic Transmission Fluid or equivalent licensed
ATF+4 product.
Transfer Case – NV140 Single Speed
Only MOPAR
ATF+4Automatic Transmission Fluid or equivalent licensed
ATF+4 product.
Transfer Case – NV245 Two Speed
Only MOPAR
NV 247/245 Transfer Case Lubricant or equivalent.
Axle Differential (Front-Rear) MOPAR Synthetic Gear & Axle Lubricant SAE 75W-140 (API-GL5) or
equivalent with friction modifier additive.
Brake Master Cylinder MOPARDOT 3 Brake Fluid, SAE J1703 should be used. If DOT 3, SAE
J1703 brake fluid is not available, then DOT 4 is acceptable. Use only rec-
ommended brake fluids or equivalent.
Power Steering Reservoir This system requires the use of MOPAR Hydraulic System Power Steer-
ing Fluid or equivalent, which meets Chrysler Material Standard MS-
10838.
7
MAINTAINING YOUR VEHICLE 415

Front Axle (Differential)................... 387
Front Heated Seats ....................... 89
Fuel ................................. 315
Conserving .......................... 174
Filler Cap (Gas Cap) .................... 320
Gasoline ............................ 315
Gauge .............................. 167
Materials Added ....................... 318
Octane Rating ........................ 315
Requirements ......................... 413
Saver Mode .......................... 174
Tank Capacity ........................ 413
Fuel Optimizer ......................... 174
Fuel Saver ............................. 174
Fuel System Caution ................... 318,320
Fuses ................................ 398
Garage Door Opener (HomeLink) ........... 128
Gas Cap (Fuel Filler Cap) ............320,321,365Gasoline (Fuel)
......................... 315
Conserving .......................... 174
Gasoline, Reformulated ................... 316
Gasoline/Oxygenate Blends ................ 316
Gauges Coolant Temperature ................... 163
Fuel ............................... 167
Speedometer ......................... 158
Tachometer .......................... 161
Gear Ranges ........................... 245
General Information .................. 18,25,314
Glass Cleaning .......................... 397
Gross Axle Weight Rating ...............322,325
Gross Vehicle Weight Rating .............322,324
GVWR ............................... 322
Hands-Free Phone (uconnect™) .............. 84
Hazard Warning Flasher ................... 346
Head Restraints .......................... 88
452 INDEX

Park Sense System, Rear................... 119
Parking Brake .......................... 265
Passing Light ........................... 108
Pedals, Adjustable ....................... 115
Personal Settings ........................ 178
Pets .................................. 71
Pets, Transporting ........................ 71
Phone, Cellular .......................... 84
Phone, Hands-Free (uconnect™) .............. 84
Placard, Tire and Loading Information ......... 292
Polishing and Waxing ..................... 394
Power Distribution Center (Fuses) ............... 401
Door Locks ........................... 28
Inverter ............................. 140
Mirrors .............................. 82
Outlet (Auxiliary Electrical Outlet) .......... 137
Seats .............................. 87,88
Steering .......................... 263,264Sunroof
............................. 135
Windows ............................. 30
Pregnant Women and Seat Belts .............. 45
Preparation for Jacking .................... 350
Pretensioners Seat Belts ............................ 43
Programmable Electronic Features ............ 178
Programming Transmitters
(Remote Keyless Entry) .................... 20
Quadra-Trac ........................... 253
Radial Ply Tires ......................... 298
Radio Operation ........................ 221
Radio, Satellite (uconnect studios)........... 214
Rain Sensitive Wiper System ................ 112
Rear Axle (Differential) .................... 387
Rear Camera ........................... 125
Rear Cupholder ......................... 142
458 INDEX