2012 JEEP GRAND CHEROKEE differential

4. Hold down the NEUTRAL “pin” switch (with
a pen, etc.) for four seconds until the LED light
by the switch starts to blink indicating shift in
progress. The light will stop blinking (stay on
solid) when the NEUTRAL shift is complete.
5. Repeat Steps 1 to 4 to shift out of NEUTRAL.
NOTE:
If shift conditions/interlocks are not met, a
“To Tow Vehicle Safely, Read Neutral Shift
Procedure in Owners Manual” message will
flash from the Electronic Vehicle Informa-
tion Center (EVIC). Refer to “Electronic Ve-hicle Information Center (EVIC)” in “Under-
standing Your Instrument Panel” for further
information.
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 trans-
fer case. The optional ELSD axle is fully auto-
matic 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 differ-
ence. 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.
Neutral Switch
Selec-Terrain™ Switch
234

WARNING!(Continued)
• When leaving the vehicle, always remove
the key fob from the ignition and lock your
vehicle. Never leave children alone in a
vehicle, or with access to an unlocked
vehicle. Allowing children to be in a vehicle
unattended is dangerous for a number of
reasons. A child or others could be seri-
ously or fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the shift lever.
• Do not leave the key fob in or near the
vehicle, and do not leave Keyless Enter-
N-Go in the ACC or ON/RUN mode. A child
could operate power windows, other con-
trols, or move the vehicle.
• Be sure the parking brake is fully disen-
gaged before driving; failure to do so can
lead to brake failure and a collision.
(Continued)WARNING!(Continued)
• Always fully apply the parking brake when
leaving your vehicle, or it may roll and
cause damage or injury. Also be certain to
leave the transmission in PARK. Failure to
do so may allow the vehicle to roll and
cause damage or injury.
CAUTION!
If the “Brake Warning Light” remains on with
the parking brake released, a brake system
malfunction is indicated. Have the brake sys-
tem serviced by an authorized dealer imme-
diately.
ELECTRONIC BRAKE CONTROL
SYSTEM
Your vehicle is equipped with an advanced
electronic brake control system that includes
the Anti-Lock Brake System (ABS), Traction
Control System (TCS), Brake Assist System
(BAS), Electronic Roll Mitigation (ERM), and
Electronic Stability Control (ESC). All five of
these systems work together to enhance ve-
hicle stability and control in various driving
conditions.
Also, your vehicle is equipped with Trailer Sway
Control (TSC), Hill Start Assist (HSA), Brake
Lock Differential (BLD), Ready Alert Braking,
Rain Brake Support and, if it has four-wheel
drive with the MP 3023 two-speed transfer
case, Hill Descent Control (HDC).
Anti-Lock Brake System (ABS)
This system aids the driver in maintaining ve-
hicle control under adverse braking conditions.
The system controls hydraulic brake pressure
to prevent wheel lock-up and help avoid skid-
ding on slippery surfaces during braking.
245

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 ac-
cidents, including those resulting from exces-
sive speed in turns, driving on very slippery
surfaces, or hydroplaning. The capabilities of
an ABS-equipped vehicle must never be ex-
ploited 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 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 sys-tem 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 “Electronic Stability
Control (ESC)” in this section for further infor-
mation.
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 sensing the rate and
amount of brake application and then applies
optimum pressure to the brakes. This can help
reduce braking distances. The BAS comple-
ments the anti-lock brake system (ABS). Apply-
ing the brakes very quickly results in the best
BAS assistance. To receive the benefit of the
system, you must apply
continuousbraking
pressure during the stopping sequence (do not
“pump” the brakes). Do not reduce brake pedal
pressure unless braking is no longer desired.
Once the brake pedal is released, the BAS is
deactivated.
WARNING!
The BAS cannot prevent the natural laws of
physics from acting on the vehicle, nor can it
increase the traction afforded by prevailing
road conditions. The BAS cannot prevent
accidents, including those resulting from ex-
cessive speed in turns, driving on very slip-
pery surfaces, or hydroplaning. The capabili-
ties of a BAS-equipped vehicle must never be
exploited in a reckless or dangerous manner
which could jeopardize the user’s safety or the
safety of others.
Electronic Roll Mitigation (ERM)This system anticipates the potential for wheel
lift by monitoring the driver’s steering wheel
input and the speed of the vehicle. When ERM
determines that the rate of change of the steer-
ing wheel angle and vehicle speed are suffi-
cient to potentially cause wheel lift, it then
applies the brake of the appropriate wheel and
may also reduce engine power to lessen the
chance that wheel lift will occur. ERM will only
intervene during very severe or evasive driving
maneuvers.
246

Cavity Car-tridgeFuse Mini
Fuse Description
J01 40 Amp Green Air Suspension
J02 30 Amp Pink Power Liftgate
Module
J03 30 Amp Pink Trailer Tow
J04 25 Amp Natural Driver Door
Node
J05 25 Amp Natural Passenger Door
Node
J06 40 Amp Green Antilock Brakes
Pump/Stability
Control System
J07 30 Amp Pink Antilock Brakes
Valve/Stability
Control System
J08 40 Amp Green Power Seat
J09 30 Amp Pink E-Brake
J10 30 Amp Pink Headlamp Wash
Relay ContactCavity Car-
tridgeFuse Mini
Fuse Description
J11 30 Amp Pink Drive Train Con-
trol Module
J12 30 Amp Pink Rear Defroster
J13 60 Amp Yellow Main Ignition Off
Draw (IOD)
J14 20 Amp Blue Trailer Tow
Lamps/Park
Lamps
J15 40 Amp Green Front Cabin Fan/
Blower
J17 40 Amp Green Starter Motor
Solenoid
J18 20 Amp Blue Powertrain Con-
trol Module/
Powertrain Con-
trol Module
Transmission
RangeCavity Car-
tridgeFuse Mini
Fuse Description
J19 60 Amp Yellow Radiator Fan
Motor HI/
Radiator Fan
Motor Low
J20 30 Amp Pink Front Wiper
J21 20 Amp Blue Front/Rear
Washer Control
J22 25 Amp Natural Sunroof Module
M1 15 Amp
Blue Stop Lamps
M2 20 Amp
Yellow Electronic Limit
Slip Differential/
Air Suspension
M3 20 Amp
Yellow Liftgate/Headrest
M5 25 Amp
Natural 115V AC Power
Inverter
M6 20 Amp
Yellow Cigar Lighter
319

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission MOPARATF+4Automatic Transmission Fluid or equivalent licensed ATF+4 product.
Transfer Case MOPARATF+4Automatic Transmission Fluid or equivalent licensed ATF+4 product.
Axle Differential (Front-Rear) MOPARSynthetic Gear & Axle Lubricant SAE 75W-140 (API-GL5) or equivalent with friction
modifier additive.
Axle Differential (Rear) – 5.7L Engine With
Electronic Limited-Slip Differential (ELSD) MOPAR
Synthetic Gear & Axle Lubricant SAE 75W-90 (API-GL5) or equivalent.
Axle Differential (Rear) – 5.7L Engine Without
Electronic Limited-Slip Differential (ELSD) MOPAR
Synthetic Gear & Axle Lubricant SAE 75W-85 (API-GL5) or equivalent.
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 recommended brake fluids or equivalent.
Power Steering Reservoir – 3.6L Engine and
3.0L Diesel Engine MOPAR
Hydraulic Fluid or equivalent meeting MS-11655, such as Fuchs EG ZH 3044 or Pento-
sin CHF 11s.
Power Steering Reservoir – 5.7L Engine MOPAR Power Steering Fluid +4, MOPAR ATF+4Automatic Transmission Fluid or equivalent
licensed ATF+4 product.
329

Jump Starting..............287
Engine Air Cleaner ................304
Break-In Recommendations .......55
Compartment .........298,299,300
Compartment Identification . . 298,299,300
Cooling ..................308
Exhaust Gas Caution .........29,56
Fails to Start ...............218
Flooded, Starting ............218
Fuel Requirements .........262,326
Jump Starting ..............287
Multi-Displacement ...........244
Oil .................. 302,326
Oil Change Interval ...........302
Oil Disposal ...............304
Oil Filter .................304
Oil Selection .......... 302,303,326
Oil Synthetic ...............303
Overheating ...............282
Starting ..................216
Temperature Gauge ...........164
Engine Oil Viscosity ............303
Engine Oil Viscosity Chart ........303
Enhanced Accident Response Feature . . 44
Entry System, Illuminated ..........17
Ethanol ...................263 Event Data Recorder
............46
Exhaust Gas Caution ........29,56,307
Exhaust System ............ 56,307
Exterior Finish Care ............316
Exterior Lights ................58
Filters Air Cleaner ................304
Engine Oil ................304
Finish Care .................316
Flashers ..................282
Hazard Warning .............282
Turn Signal ......... 58,160,323,324
Flipper Glass, Liftgate ...........27
Flooded Engine Starting .........218
Fluid Capacities ..............326
Fluid Leaks .................58
Fluid Level Checks Automatic Transmission ....313,314,315
Brake ...................312
Engine Oil ................302
Power Steering .............243
Fluids, Lubricants and Genuine Parts . . 327
Fog Light Service .............323
Fog Lights ............ 108,160,323
Fog

Lights, Rear ..............164 Folding Rear Seat
.............100
Forward Collision Warning . . . 129,170,180
Four Wheel Drive ........... 231,234
Operation ................231
Systems .................231
Four Wheel Drive Operation .......231
Four-Way Hazard Flasher .........282
Freeing A Stuck Vehicle ..........289
Front Axle (Differential) ..........312
Fuel .....................262
Additives .................264
Conserving ................173
Diesel ..................264
Filler Cap (Gas Cap) ........265,266
Gasoline .................262
Gauge ..................163
Light ...................170
Octane Rating ..............262
Requirements ..............326
Saver Mode ...............173
Tank Capacity ..............326
Fuel Optimizer ...............173
Fuel Saver .................173
Fuel System Caution ............265
Fuses ....................318
368

Octane Rating, Gasoline (Fuel)......262
Odometer ..................160
Trip ....................160
Off-Pavement Driving (Off-Road) .....239
Off-Road Driving (Off-Pavement) .....239
Oil Change Indicator ...........172
Oil Change Indicator, Reset .......172
Oil, Engine .................302
Capacity .................326
Change Interval .............302
Diesel ..................303
Dipstick .................302
Filter ...................304
Identification Logo ...........302
Materials Added to ...........304
Recommendation .......302,303,326
Synthetic .................303
Viscosity ............... 303,326
Onboard Diagnostic System .......301
Operator Manual (Owner’s Manual) .....6
Outside Rearview Mirrors ..........67
Overdrive ............... 226,230
Overdrive OFF Switch ........226,230
Overhead Console .............138
Overheating, Engine .........164,282
Owner’s Manual (Operator Manual) .....6Paint Care
.................315
Paint Damage ...............315
Park Sense System, Rear .........131
Parking Brake ...............244
Personal Settings .............179
Pets ......................55
Pets, Transporting ..............55
Phone, Cellular ...............74
Phone, Hands-Free (Uconnect™) .....74
Polishing and Waxing ...........316
Power Door Locks ................21
Lift Gate ..................27
Mirrors ...................68
Outlet (Auxiliary Electrical Outlet) . . . 142
Seats .................. 94,95
Steering ............... 242,243
Sunroof ............... 139,140
Tilt/Telescoping Steering Column . . . 114
Windows ..................24
Pregnant Women and Seat Belts .....37
Preparation for Jacking ..........283
Pretensioners Seat Belts .................34
Programmable Electronic Features ....
179
Programming Transmitters
(Remote Keyless Entry) ...........17 Quadra-Lift
.................236
Quadra-Trac ................231
Radial Ply Tires ..............253
Radio (Sound Systems) ..........183
Radio Operation ..............204
Rain Sensitive Wiper System .......112
Rear Axle (Differential) ..........312
Rear Camera ................136
Rear Cross Path ...............72
Rear Cupholder ..............144
Rear Fog Lights ..............164
Rear Park Sense System .........131
Rear Seat, Folding .............100
Rear Window Defroster ..........150
Rear Window Features ..........149
Rear Wiper/Washer ............149
Rearview Mirrors ..............67
Recorder, Event Data ............46
Recreational Towing ............276
Shifting into Transfer Case Neutral
(N) ....................277
Shifting out of Transfer Case Neutral
(N) ....................279
Refrigerant .................305
Reminder, Seat Belt .............37
371