2012 JEEP GRAND CHEROKEE Rear air suspension

SELEC-TERRAIN™
• Selec-Terrain™ combines the capabilities of the vehicle control systems,along with driver input, to provide the best performance for all terrains.
Rotate the mode control knob to select the following Selec-Terrain™
positions: •Sport – Dry weather, on-road calibration. Only available in 4WD High
range. Performance-based tuning that provides a rear wheel drive feel
but with improved handling and acceleration over a two-wheel drive
vehicle. The Electronic Stability Control will set to allow more driver
control of the vehicle while maintaining safe handling controls. The
vehicle will lower (if equipped with Air Suspension) by 0.59 inches
(15 mm) in the SPORT mode.
• Snow – The Electronic Stability Control is set for additional stability in
inclement weather. Use on and off road on loose traction surfaces such
as snow.
• Auto – Fully automatic full-time four-wheel drive operation can be used
on and off road. Balances traction with steering feel to provide improved
handling and acceleration over two-wheel drive vehicles.
• Sand/Mud – Off-road calibration for use on low traction surfaces such as
mud, sand, or wet grass. Driveline is maximized for traction. Some
binding may be felt on less forgiving surfaces. The electronic brake
controls are set to limit traction control management of throttle and
wheel spin.
• Rock – Off-road calibration only available in 4WD Low range. The vehicle
is raised (if equipped with Air Suspension) for improved ground
clearance. Traction based tuning with improved steer-ability for use on
high traction off-road surfaces. Activates the Hill Descent Control for
steep downhill control. Use for low speed obstacles such as large rocks,
deep ruts, etc.
Quadra-Lift™
• The Quadra-Lift™ air suspension system provides full time load
leveling capability along with the
benefit of being able to adjust
vehicle height by the push of a
button. Quadra-Lift™ is available
with both Quadra-Trac II® and
Quadra-Drive II™.
• The system requires that the engine be running for all changes.
When lowering the vehicle all of
the doors, including the liftgate,
must be closed.
OFF-ROAD CAPABILITIES
86

• The Quadra-Lift™ air suspension system uses a lifting and loweringpattern which keeps the headlights from shining into oncoming traffic.
When raising the vehicle, the rear of the vehicle will move up first and
then the front. When lowering the vehicle, the front will move down first
and then the rear.
• After the engine is turned off, you may notice that the air suspension system operates briefly. This is normal. The system is correcting the
position of the vehicle.
• To assist with changing a spare tire, the Quadra-Lift™ air suspension system has a feature which allows the automatic leveling to be disabled.
Press and hold both the “Up” and “Down” buttons simultaneously
between 5 and 10 seconds; a message will appear in the EVIC stating
leveling has been disabled immediately after both buttons have been
released. Driving the vehicle over 5 mph (8 km/h) will return the air
suspension to normal operation.
• An audible chime will be heard whenever a system error has been detected.
Operation • Pressing the “Up” or “Down” button once will move the suspension one position higher or lower from the current position, assuming all
conditions are met (i.e., engine running and all doors and liftgate closed).
• The 4 indicator lamps will illuminate to show the current position of the vehicle. Flashing indicator lamps will show a position which the system is
working to achieve. If multiple indicator lamps are flashing on the “Up”
button, the highest flashing indicator lamp is the position the system is
working to achieve.
• Normal Ride Height (NRH) – This is the standard position ofthe suspension and is meant for normal driving. Only the
bottom Indicator lamp on the “Up” button will be illuminated
when the vehicle is in this position.
• Off-Road 1 (OR1) (Raises the vehicle approximately 1.3 in (33 mm) – This position is intended for off-road driving only
where vehicle speeds may go above 25 mph (40 km/h). Press
the “Up” button once from NRH while vehicle speed is below
48 mph (77 km/h). The bottom two Indicator lamps on the
“Up” button will be illuminated when the vehicle is in OR1.
• Off-Road 2 (OR2) (Raises the vehicle approximately 2.6 in (65 mm) – This position is intended for off-road driving where
maximum ground clearance is required. Press the “Up” button
twice from NRH, or once from OR1 position while vehicle
speed is below 20 mph (32 km/h). All three Indicator lamps on
the “Up” button will be illuminated when the vehicle is in OR2.
UP
UP
UP
OFF-ROAD CAPABILITIES
87

• Park Mode (Lowers the vehicle approximately 1.5 in (38 mm) –This position lowers the vehicle for easier passenger entry and
exit. Press the “Down” button once from NRH while the vehicle
speed is below 25 mph (40 km/h). Once the vehicle speed
goes below 15 mph (24 km/h) the vehicle height will begin to
lower. The Indicator lamp on the “Down” button will be
illuminated when the vehicle is in Park Mode.
WARNING!
• You or others could be injured if you leave the vehicle unattendedwith the transfer case in the N (Neutral) position without first fully
engaging the parking brake. The transfer case N (Neutral) position
disengages both the front and rear driveshafts from the powertrain
and will allow the vehicle to move regardless of the transmission
position. The parking brake should always be applied when the
driver is not in the vehicle.
• The air suspension system uses a high pressure volume of air to operate the system. To avoid personal injury or damage to the
system, see your authorized dealer for service.
Hill Start Assist/Hill Descent Control
• The Hill Start Assist system assists the driver when starting a vehiclefrom a stop on a hill.
• The Hill Descent Control system maintains vehicle speed while descending hills during off-road driving situations and is available in
4WD HIGH range and 4WD LOW range.
• Refer to your Owner's Manual on the DVD for further details.
DOWN
PARK
OFF-ROAD CAPABILITIES
88

MAINTENANCE CHART
Miles:
8,000 16,000 24,000 32,000 40,000 48,000 56,000 64,000 72,000 80,000 88,000 96,000 104,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78
Or Kilometers:
13,000 26,000 39,000 52,000 65,000 78,000 91,000 104,000 117,000 130,000 143,000 156,000
169,000
Change the engine oil and engine oil filter. XXXXXXXXXXXXX
Rotate the tires, rotate at the first sign of ir-
regular wear, even if it occurs before scheduled
maintenance. XXXXXXXXXXXXX
If using your vehicle for any of the following:
dusty or off-road conditions. Inspect the en-
gine air cleaner filter; replace if necessary. XXX
Inspect the brake linings; replace if necessary. XXXXXX
InspecttheCVjoints. XXXX
Inspecttheexhaustsystem. XXXXX
Inspect the transfer case fluid and change if
necessary. XXX
Adjust the parking brake on vehicles equipped
with four wheel disc brakes. XXX
Change the automatic transmission fluid and
filter if using your vehicle for any of the follow-
ing: police, taxi, fleet or frequent trailer towing. X
Inspect the front and rear axle fluid, change if
necessary. XXXX
Inspect front suspension, tie rod ends, and
boot seals, for cracks or leaks and all parts for
damage, wear, improper looseness or end play;
replace if necessary. XXXXXX
Replace the engine air cleaner. X X X
Replace the air conditioning filter. XXXXXX
Replace the spark plugs (5.7L engine) XXX
Replace the spark plugs (3.6L engine) X
MAINTAINING YOUR VEHICLE
121

Integrated Power Module (fuses)
The integrated power module is located on the right side of the engine
compartment. This center contains cartridge fuses and mini fuses. A
description of each fuse and component may be stamped on the inside
cover, otherwise the cavity number of each fuse is stamped on the inside
cover that corresponds to the following chart.
CavityCartridge
Fuse 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 ABS Pump Feed/ESP
J07 30 Amp Pink ABS Valve Feed/ESP
J08 40 Amp Green Power Seat
J09 30 Amp Pink E-Brake
J10 30 Amp Pink Headlamp Wash Relay Contact
J11 30 Amp Pink DTCM
J13 60 Amp Yellow Streaming Video Module/
VES3 Module/VES2
Module/DISP/DVD
J14 20 Amp Blue Trailer Tow Lamps/Park Lamps
J15 40 Amp Green Rear Window Defroster
J17 40 Amp Green Starter Motor Solenoid Feed
J18 20 Amp Blue NGC/PCM Transmission Range
J19 60 Amp Yellow Rad Fan Motor HI/Rad Fan
Motor Low
J20 30 Amp Pink Front Wiper Ground
J21 20 Amp Blue Front Washer Control/Rear
Washer Control
J22 25 Amp Natural PWR Batt – Sunroof Mod
M1 15 Amp Blue Sw Stop Switch Lamp Feed
M2 20 Amp
Yellow ELSD/Air Suspension
M3 20 Amp
Yellow Liftgate Unlock/DRL Relay
M4 10 Amp Red Trailer Tow
MAINTAINING YOUR VEHICLE
127

CavityCartridge
Fuse Mini Fuse Description
M5 25 Amp NaturalInverter
M6 20 Amp YellowPower Outlet #1 (Cigar
Lighter)/Rain Snsr
M7 20 Amp YellowPower Outlet #2 (Switchable)
M8 20 Amp YellowFront Heated Seat & Steering
Wheel
M9 20 Amp YellowRear Heated Seats
M10 20 Amp YellowHFM/Vanity Lamp/UGDO Mod
M11 10 Amp Red HVAC (ATC)
M12 30 Amp GreenRadio/Amplifier
M13 20 Amp
Yellow Main #2 CCN/WIN/ITM/Siren/
Multifunction Switch (SCM)
M14 20 Amp
Yellow Back Up Camera (Domestic
Only)
M15 20 Amp
Yellow Power Seat Module(s)/
Adaptive Cruise Control/Audio
Telematics/DRL Relay/Air
Suspension Module/CCN
M16 10 Amp Red ORC
M17 15 Amp Blue Lt-Tail/Lic/Park LMP
M18 15 Amp Blue Rt-Tail/Park/Run LMP
M19 25 Amp
Natural ASD 1 and 2
M20 15 Amp Blue CCN Interior Lighting Feed/Sw
Steering Wheel/ Sw Bank/SCM
(EVIC)
M21 20 Amp
Yellow ASD 3
M22 10 Amp Red Horns (Low/High) – Right
M23 10 Amp Red Horns (Low/High) – Left
M24 25 Amp
Natural Rear Wiper On
M25 20 Amp
Yellow Fuel Pump Motor Output/
Diesel Lift Pump (Export Only)
M26 10 Amp Red Driver Door Switch Bank
M27 10 Amp Red Ignition Switch Feed/WIN/PEM
M28 15 Amp Blue PCM Feed/TCM
M29 10 Amp Red CORAX TPM
M30 15 Amp Blue J1962 Diag Connector
MAINTAINING YOUR VEHICLE
128

Adaptive Cruise Control (ACC)
(CruiseControl) ...........31
AirConditioning .........35,36
Air Suspension............86
Airbag ..................17
AirbagLight .............100
Alarm,Panic ..............10
Anti-Lock Brake System
(ABS) ..................99
Arming Theft System (Security
Alarm) .................16
Audio Settings . . 44,45,46,48,51,60
Automatic Dimming Mirror . . . . 30
Automatic Headlights .......28
Automatic Temperature Control
(ATC) ..................35
Automatic Transmission Autostick ..............93
FluidType .............119
Autostick ...............93
Auxiliary Audio/Video
Input Jacks ..............77
AxleFluid ............119,120
Axle Lubrication (Axle Fluid) . . 120
Back-Up Camera ...........36
Battery Charging System Light .....99
Belts, Seat ...............16
Blind Spot Monitoring . . . ....37
BrakeFluid ............119,120
Brake System WarningLight ...........98
Break-In Recommendations,
NewVehicle ..............27
Bulb Replacement ..........131
Button, Start/Stop Removal . . 10,14
Calibration, Compass ........78
Change Oil Indicator . . . . . . . 100
Changing A Flat Tire ........102
Charging System Light .......99
Check Engine Light (Malfunction
IndicatorLight) ...........99
ChildRestraint ............18
Child Restraint Tether Anchors . . 18
ClimateControl ...........35
Clock Setting .......44,46,49,57 Command View Skylights
.....39
Compass Calibration . . . . . . . . 78
Cooling System Coolant Capacity . . . . . ....119
Cruise Control (Speed
Control) ................30
CruiseLight ..............30
Customer Assistance . . . . . . . 132
Defects, Reporting . . . . . . . . . 133
Defroster, Rear Window . . . . . . 35
Defroster, Windshield . . . . . . . . 35
Dimmer Control . . . . . . . ....28
Dimmer Switch, Headlight . . . . . 28
Disarming, Theft System . . . . . . 16
E-85 Fuel . . . . . . . . . . . . . . . 120
ECO ...................78
Electronic Range Select (ERS) . . 34
Electronic Speed Control (Cruise
Control) ................30
Electronic Stability Control
(ESC) . . . . . . . . . . . . . . . . . . 99
Electronic Throttle Control Warning
Light ..................100
Electronic Vehicle Information
Center(EVIC).........78,79,95
Electronics Your Vehicle's Sound System . 42
Emergency Key . . . . . . . . . . . . 10
Emergency, In Case of Jacking . . . . . . . . . . . . . . . 102
Overheating . . . . . . . . . . . . 101
Engine Break-In Recommendations . . 27
Compartment . . . . . . . ....116
Coolant (Antifreeze) . . . . . . . 119
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . 99
Oil ..................119
OilFilter ...............119
OilSelection ............119
Overheating . . . . . . . . . . . . 101
Starting . . . . . . . . . . . . . . . 15
Stopping . . . . . . . . .......15
Event Data Recorder . . . . . . . . 113
ExteriorLights ............131
INDEX
135