warning light JEEP COMMANDER 2008 1.G Service Manual

NOTE:Tighten the gas cap about 1/4 turn until you
hear one click. This is an indication that cap is properly
tightened.
If the gas cap is not tighten properly, the Malfunction
Indicator Light will come on. Be sure the gas cap is
tightened every time the vehicle is refueled.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
ªCHECK GASCAPº message will be displayed in the
EVIC (Electronic Vehicle Information Center). Refer to
ªElectronic Vehicle Information Centerº in Section 4 of
this manual. Tighten the fuel filler cap until a ªclickingº
sound is heard. This is an indication that the fuel filler
cap is properly tightened. Refer to ªOnboard Diagnostic
System Ð OBDIIº in Section 7 of this manual for more
information.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
CAUTION!
Damage to the fuel system or emission control sys-
tem could result from using an improper fuel tank
filler cap (gas cap). A poorly fitting cap could let
impurities into the fuel system.
STARTING AND OPERATING 343
5

actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.
þTrailer brakes are recommended for trailers over 1,000
lbs (454 kg) and required for trailers in excess of 2,000
lbs (907 kg).
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
WARNING!
Do not connect trailer brakes to your vehicle's hy-
draulic brake lines. It can overload your brake sys-
tem and cause it to fail. You might not have brakes
when you need them and could have an accident.
Towing any trailer will increase your stopping dis-
tance. When towing you should allow for additional
space between your vehicle and the vehicle in front
of you. Failure to do so could result in an accident.
Towing Requirements Ð Trailer Lights & Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
356 STARTING AND OPERATING

WARNING!
Raising the vehicle higher than necessary can make
the vehicle less stable. It could slip off the jack and
hurt someone near it. Raise the vehicle only enough
to remove the tire.
6. Remove the lug nuts and wheel.
7. Position the spare wheel/tire on the vehicle and install
the lug nuts with the cone-shaped end toward the wheel.
Lightly tighten the nuts. To avoid the risk of forcing the
vehicle off the jack, do not tighten the nuts fully until the
vehicle has been lowered.
8. Lower the vehicle by turning the jack screw counter
clockwise, and remove the jack and wheel blocks.9. Finish tightening the lug nuts. Push down on the
wrench while tightening for increased leverage. Alternate
nuts until each nut has been tightened twice. Correct
wheel nut tightness is 130 N´m (95 ft. lbs). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or at a service
station.
10. Lower the jack to it's fully closed position.
WARNING!
A loose tire or jack, thrown forward in a collision or
hard stop could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided.
11. Secure the tire, jack, and tools in their proper loca-
tions.
WHAT TO DO IN EMERGENCIES 373
6

WARNING!
Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in
closed areas they may cause respiratory harm.
Cleaning Headlights
Your vehicle has plastic headlights that are lighter and
less susceptible to stone breakage than glass headlights.
Plastic is not as scratch resistant as glass and therefore
different lens cleaning procedures must be followed.
To minimize the possibility of scratching the lenses and
reducing light output, avoid wiping with a dry cloth. To
remove road dirt, wash with a mild soap solution fol-
lowed by rinsing.
Do not use abrasive cleaning components, solvents, steel
wool or other aggressive material to clean the lenses.
Glass Surfaces
All glass surfaces should be cleaned on a regular basis
with MopartGlass Cleaner or any commercial
household-type glass cleaner. Never use an abrasive type
cleaner. Use caution when cleaning inside rear windows
equipped with electric defrosters. Do not use scrapers or
other sharp instruments which may scratch the elements.
When cleaning the rear view mirror, spray cleaner on the
towel or rag that you are using. Do not spray cleaner
directly on the mirror.
Cleaning Plastic Instrument Cluster Lenses
The lenses in front of the instruments in this vehicle are
molded in clear plastic. When cleaning the lenses, care
must be taken to avoid scratching the plastic.
1. Clean with a wet soft rag. A mild soap solution may be
used, but do not use high alcohol content or abrasive
cleaners. If soap is used, wipe clean with a clean damp
rag.
418 MAINTAINING YOUR VEHICLE

ABS (Anti-Lock Brake System)............188,302
Adding Fuel........................... 341
Adding Washer Fluid..................... 177
Adjustable Pedals....................... 135
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 393
Air Conditioner Maintenance............... 397
Air Conditioning........................ 259
Air Conditioning, Operating Tips............ 269
Air Conditioning, Rear Zone................ 267
Air Conditioning Refrigerant............... 398
Air Conditioning System.................. 259
Air Filter.............................. 393
Air Pressure, Tires....................... 316
Airbag................................ 48
Airbag Deployment....................... 55
Airbag Light.......................57,71,188
Airbag Maintenance....................... 57
Alarm, Panic............................ 24
Alarm (Security Alarm).................20,189Alarm System (Security Alarm)............... 20
Alignment and Balance................... 321
Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 250
Antifreeze (Engine Coolant)................ 435
Disposal............................ 405
Anti-Lock Brake System (ABS)............139,302
Anti-Lock Warning Light.................. 188
Anti-Theft System.....................20,189
Appearance Care........................ 415
Assist, Hill Start........................ 148
Audio Systems (Radio).................... 239
Auto Down Power Windows................ 32
Automatic Dimming Mirror................. 78
Automatic Door Locks..................... 29
Automatic Headlights.................... 126
Automatic Temperature Control (ATC)......... 260
Automatic Transmission................283,411
Adding Fluid......................... 412
458 INDEX

Fluid and Filter Changes................. 411
Fluid Level Check................... 411,412
Fluid Type........................... 411
Special Additives...................... 414
Torque Converter...................... 288
Autostick............................. 285
Auxiliary Electrical Outlet (Power Outlet)...... 169
Auxiliary Power Outlet................... 169
Battery............................... 395
Emergency Starting..................... 374
Keyless Transmitter Replacement (RKE)....... 25
Saving Feature (Protection)............... 125
Belts, Drive............................ 392
Belts, Seat.............................. 39
Body Mechanism Lubrication............... 399
B-Pillar Location........................ 311
Brake Assist System...................... 141
Brake Control System, Electronic............. 139Brake System........................... 407
Anti-Lock (ABS)....................139,302
Hoses.............................. 408
Master Cylinder....................... 408
Parking............................. 300
Warning Light........................ 187
Brake/Transmission Interlock............... 283
Break-In Recommendations, New Vehicle........ 69
Bulb Replacement.....................427,428
Calibration, Compass..................... 204
Camera, Rear........................... 157
Capacities, Fluid........................ 435
Caps, Filler
Fuel................................ 341
Radiator (Coolant Pressure)............... 404
Car Washes............................ 415
Carbon Monoxide Warning...............70,337
Cargo Area Features...................... 174
INDEX 459
10

Electronic Brake Control System............. 139
Anti-Lock Brake System................. 139
Brake Assist System.................... 141
Electronic Roll Mitigation................ 142
Electronic Stability Program............... 143
Traction Control System................. 140
Electronic Roll Mitigation (ERM)............. 142
Electronic Speed Control (Cruise Control)...... 136
Electronic Stability Program (ESP)............ 143
Electronic Throttle Control Warning Light...... 194
Electronic Vehicle Information Center
(EVIC).............................192,195
Emergency, In Case of
Freeing Vehicle When Stuck............... 289
Hazard Warning Flasher................. 366
Jacking............................. 368
Jump Starting......................... 374
Tow Hooks.......................... 377
Emission Control System Maintenance......386,440Engine
Air Cleaner.......................... 393
Block Heater......................... 280
Break-In Recommendations................ 69
Compartment...................382,383,384
Compartment Identification.........382,383,384
Cooling............................. 401
Exhaust Gas Caution................38,70,337
Fails to Start.......................... 279
Fuel Requirements..................333,435
Multi-Displacement..................... 306
Oil ..............................389,435
Oil Change Interval.................... 390
Oil Disposal.......................... 391
Oil Filter............................ 391
Oil Filter Disposal...................... 391
Oil Selection.......................... 435
Oil Synthetic......................... 391
Overheating.......................... 367
462 INDEX

Starting............................. 277
Temperature Gauge..................... 191
Engine Oil Viscosity...................... 390
Engine Oil Viscosity Chart................. 390
Enhanced Accident Response Feature.......... 56
Entry System, Illuminated.................. 21
Event Data Recorder...................... 58
Exhaust Gas Caution.................38,70,337
Exhaust System......................... 401
Extender, Seat Belt........................ 48
Exterior Finish Care...................... 415
Filters
Air Cleaner.......................... 393
Engine Oil........................... 391
Engine Oil Disposal.................... 391
Finish Care............................ 415
Flashers.............................. 366
Hazard Warning....................... 366Turn Signal.....................187,430,432
Flexible Fuel Vehicles
Cruising Range........................ 340
Engine Oil........................... 340
Fuel Requirements..................337,339
Replacement Parts..................... 340
Starting............................. 340
Flipper Glass, Liftgate..................... 35
Flooded Engine Starting................... 279
Fluid Capacities......................... 435
Fluid Leaks............................. 72
Fluid Level Checks
Automatic Transmission............... 411,412
Engine Oil........................... 389
Power Steering........................ 398
Fluids, Lubricants and Genuine Parts.......... 436
Fog Light Service........................ 431
Fog Lights.......................128,194,431
Fold and Tumble Rear Seat................. 113
INDEX 463
10

GVWR............................... 344
Hands-Free Phone (UConnectŸ).............. 82
Hard Drive (HDD)....................... 239
Hazard Warning Flasher................... 366
Head Restraints......................... 110
Head Rests............................ 110
Headlights............................ 125
Bulb Replacement...................... 428
Cleaning............................ 418
On With Wipers....................... 126
Replacing............................ 428
Heated Mirrors.......................... 81
Heated Seats........................... 111
Heater, Engine Block..................... 280
High Beam Indicator..................... 187
High Beam/Low Beam Select (Dimmer) Switch . . 129
Hill Descent Control..................... 150
Hill Start Assist......................... 148Hitches
Trailer Towing........................ 350
Holder, Cup........................... 172
HomeLinkt(Garage Door Opener) Transmitter . . . 159
Hood Release.......................... 123
Hoses................................ 406
Ignition............................... 16
Cables (Spark Plug Wires)................ 392
Key ...............................14,16
Wiring System (Spark Plug Wires).......... 392
Ignition Key Removal..................... 16
Illuminated Entry........................ 21
Immobilizer (Sentry Key)................... 17
Infant Restraint........................60,61
Inflation Pressure Tires.................... 316
Information Center, Vehicle................. 195
Inside Rearview Mirror.................... 78
Instrument Cluster....................186,187
INDEX 465
10

Battery Saver......................... 125
Brake Assist Warning.................152,193
Brake Warning........................ 187
Bulb Replacement...................... 428
Center Mounted Stop................... 434
Courtesy/Reading..................... 130
Cruise.............................. 193
Daytime Running...................... 128
Dimmer Switch, Headlight.............124,129
Electronic Stability Program (ESP)
Indicator........................152,189,193
Electronic Throttle Control Warning......... 194
Fog ..........................128,194,431
Four-Wheel Drive Indicator............... 193
Fuses............................... 419
Hazard Warning Flasher................. 366
Headlight Switch...................... 125
Headlights........................... 428
Headlights On With Wipers............... 126High Beam Indicator.................... 187
Illuminated Entry....................... 21
Instrument Cluster..................125,127
Interior..........................127,130
Lights On Reminder.................... 128
Low Fuel............................ 195
LowTire ............................ 190
Malfunction Indicator (Check Engine)........ 187
Oil Pressure.......................... 189
Passing............................. 129
Reading............................. 130
Rear Servicing........................ 432
Rear Tail............................ 432
Seat Belt Reminder..................... 193
Security Alarm (Theft Alarm).............. 189
Service.............................. 428
Service Engine Soon (Malfunction Indicator) . . . 187
Side Marker.......................... 432
SmartBeams.......................... 126
INDEX 467
10