2014 JEEP GRAND CHEROKEE differential

•The ignition switch must be in the ON/RUN position
for a shift to take place and for the position indicator
lights to be operable. If the ignition switch is not in the
ON/RUN position, the shift will not take place and no
position indicator lights will be on or flashing.
• A flashing “N” position indicator light indicates that
shift requirements have not been met.
Quadra-Drive® II System — If Equipped
The optional Quadra-Drive® II System features two
torque transfer couplings. The couplings include an
Electronic Limited-Slip Differential (ELSD) rear axle and
the Quadra-Trac II® transfer case. The optional ELSD
axle is fully automatic and requires no driver input to
operate. Under normal driving conditions, the unit func-
tions as a standard axle, 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 coupling differ in design, their
operation is similar. Follow the Quadra-Trac II® transfer
case shifting information, preceding this section, for
shifting this system.SELEC-TERRAIN™ — IF EQUIPPED
Description
Selec-Terrain™ combines the capabilities of the vehicle
control systems, along with driver input, to provide the
best performance for all terrains.
5
STARTING AND OPERATING 421

The Selec-Terrain™ switch will automatically change the
vehicle to the optimized height based on the Selec-
Terrain™ switch position. The vehicle height can be
changed from the default height for each Selec-Terrain™
mode by normal use of the air suspension switches. Refer
to “Quadra-Lift™ – If Equipped” in “Starting and Oper-
ating” for further information.
When To Use 4WD LOW Range — If Equipped
When off-road driving, shift to 4WD LOW for additional
traction. This range should be limited to extreme situa-
tions such as deep snow, mud, or sand where additional
low speed pulling power is needed. Vehicle speeds in
excess of 25 mph (40 km/h) should be avoided when in
4WD LOW range.
CAUTION!
Do not drive in 4WD-LOW Range on dry pavement;
driveline damage may result. 4WD-LOW Range
locks front and rear drivelines together and does not
allow for differential action between the front to rear
driveshafts. Driving in 4WD-LOW on pavement will
cause driveline binding; use only on wet or slippery
surfaces.
Driving Through Water
Although your vehicle is capable of driving through
water, there are a number of precautions that must be
considered before entering the water.
5
STARTING AND OPERATING 435

CAUTION!
The Anti-Lock Brake System is subject to possible
detrimental effects of electronic interference caused
by improperly installed aftermarket radios or tele-
phones.
NOTE: During severe braking conditions, a pulsing sen-
sation may occur and a clicking noise will be heard. This
is normal, indicating that the Anti-Lock Brake System is
functioning.
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 and
stability. A feature of the TCS system, Brake Limited Differential
(BLD), 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
ESC system is in the “Partial Off” mode. Refer to “Elec-
tronic Stability Control (ESC)” in this section for further
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
448 STARTING AND OPERATING

CavityCartridge Fuse Micro Fuse Description
F25 30 Amp Pink Front Wipers
F26 30 Amp Pink Antilock Brakes/Stability Control Module/
Valves
F28 20 Amp Blue Trailer Tow Backup Lights - If Equipped
F29 20 Amp Blue Trailer Tow Parking Lights - If Equipped
F30 30 Amp Pink Trailer Tow Receptacle - If Equipped
F32 30 Amp Pink Drive Train Control Module
F34 30 Amp Pink Slip Differential Control
F35 30 Amp Pink Sunroof - If Equipped
F36 30 Amp Pink Rear Defroster
F37 30 Amp Pink Rear Blower - If Equipped
F38 30 Amp Pink Power Inverter 115V AC - If Equipped
F39 30 Amp Pink Power Liftgate - If Equipped
F40 10 Amp RedDaytime Running Lights
F42 20 Amp Yellow Horn
7
MAINTAINING YOUR VEHICLE 611

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission We recommend you only use Mopar® ZF 8&9 Speed
ATF™ Automatic Transmission Fluid or equivalent.
Failure to use the correct fluid may affect the function or
performance of your transmission.
Transfer Case – Single-Speed (Quadra-Trac I®) We recommend you use Automatic Transmission
Fluid 3353.
Transfer Case – Two-Speed (Quadra-Trac II®) We recommend you use MOPAR® ATF+4® Automatic
Transmission Fluid.
Axle Differential (Front) We recommend you use MOPAR® GL-5 Synthetic Axle
Lubricant SAE 75W-85.
Axle Differential (Rear) – With Electronic Limited-Slip
Differential (ELSD) We recommend you use MOPAR® GL-5 Synthetic Axle
Lubricant SAE 75W-85 with friction modifier additive.
Axle Differential (Rear) – Without Electronic Limited-
Slip Differential (ELSD) We recommend you use MOPAR® GL-5 Synthetic Axle
Lubricant SAE 75W-85.
7
MAINTAINING YOUR VEHICLE 629

Exhaust System.......................... .108
Exterior Lights ...........................111
Filters Air Cleaner .......................... .578
Air Conditioning ...................... .386
Engine Oil ........................... .578
Engine Oil Disposal .....................578
Flashers ............................... .538
Hazard Warning ....................... .538
Turn Signal ............................111
Flexible Fuel Vehicles Cruising Range ........................ .506
Engine Oil ........................... .505
Fuel Requirements ..................... .503
Maintenance .......................... .506
Replacement Parts ...................... .506
Starting ............................. .506
Flooded Engine Starting ....................398 Fluid Capacities
......................... .625
Fluid Leaks ..............................111
Fluid Level Checks Automatic Transmission ..................601
Brake ............................... .597
Engine Oil ........................... .574
Power Steering ........................ .442
Fluids, Lubricants and Genuine Parts ...........627
Fog Lights ............................. .283
Fog Light Service ........................ .620
Folding Rear Seat ........................ .154
Four-Way Hazard Flasher ...................538
Four Wheel Drive ........................ .413
Operation ............................ .413
Systems ............................. .413
Four Wheel Drive Operation .................413
Freeing A Stuck Vehicle .....................556
Front Axle (Differential) .....................598
Fuel .................................. .498
10
INDEX 657

Quadra-Trac............................ .413
Radial Ply Tires ......................... .480
Radiator Cap (Coolant Pressure Cap) ...........594
Radio Operation ......................... .375
Radio Remote Controls .....................373
Radio (Sound Systems) .....................352
Rain Sensitive Wiper System .................178
Rear Axle (Differential) .....................598
Rear Camera ........................... .232
Rear Cross Path ......................... .137
Rear Cupholder ......................... .261
Rear ParkSense System .....................213
Rear Seat, Folding ........................ .154
Rear Window Features .....................272
Rear Wiper/Washer ....................... .272
Reclining Front Seats ...................... .145
Recorder, Event Data .......................81
Recreational Towing ...................... .528Shifting into Transfer Case Neutral (N)
........530
Shifting out of Transfer Case Neutral (N) ......419
Reformulated Gasoline .....................499
Refrigerant ............................. .581
Reminder, Seat Belt .........................64
Remote Control Starting System .........................20
Remote Keyless Entry (RKE) ..................26
Arm The Alarm .........................23
FCC General Information ..................30
Panic Alarm ............................28
Programming Additional Key Fobs ...........19
Programming Additional Transmitters .........19
Remote Sound System (Radio) Controls .........373
Remote Starting Uconnect® Customer Programmable Features . . .324
Uconnect® Settings ..................... .324
Remote Starting System ......................20
Replacement Bulbs ....................... .617
664 INDEX