light JEEP WRANGLER 2008 Service Manual

WARNING!
Raising the vehicle higher than necessary can make
the vehicle less stable and cause an accident. 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 spare wheel/tire on vehicle and install lug
nuts with cone-shaped end toward wheel. Lightly tighten
nuts clockwise. 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 to the left,
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 95 ft lbs (130 N·m). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or at a service
station.
10. Remove jack assembly and wheel blocks.

▫Driveline And Steering Component
Lubrication ..........................392
▫ Body Lubrication .....................392
▫ Windshield Wiper Blades ................392
▫ Windshield And Rear Window Washers .....393
▫ Exhaust System ......................393
▫ Cooling System .......................394
▫ Hoses And Vacuum/Vapor Harnesses .......399
▫ Brake System ........................399
▫ Automatic Transmission ................401
▫ Hydraulic Clutch Fluid — Manual
Transmission ........................403
▫ Manual Transmission ..................403
▫ Transfer Case ........................404 ▫
Front/Rear Axle Fluid ..................405
▫ Maintenance After Off-Road Driving ........405
▫ Appearance Care And Protection From
Corrosion ...........................406
 Fuses (Totally Integrated Power Module) ......413
 Vehicle Storage ........................419
 Replacement Bulbs — If Equipped ...........420
 Bulb Replacement ......................420
▫ Head Light ..........................420
▫ Front Park/Turn Signal .................421
▫ Front Side Marker .....................422
▫ Front Fog Light ......................422
▫ Rear Tail, Stop, Turn Signal, And Backup
Lights .............................422
376 MAINTAINING YOUR VEHICLE

Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose, improp-
erly installed, or damaged. A “gASCAP” message will be
displayed in the odometer. Tighten the gas cap until a
clickingsound is heard. This is an indication that the
gas cap is properly tightened. Press the odometer reset
button to turn the message off. If the problem persists,
the message will appear the next time the vehicle is
started. This might indicate a damaged cap. If the prob-
lem is detected twice in a row, the system will turn on the
“Malfunction Indicator Light.” Resolving the problem
will turn the “Malfunction Indicator Light.” off.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the Malfunction
Indicator Light (MIL) is functioning and is not on
when the engine is running, and that the OBD II system
is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently
serviced, recently had a dead battery, or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.

REPLACEMENT BULBS — IF EQUIPPED
Interior LightsBulb Type
Auto. Trans. Indicator Light ................. 658
Courtesy Lights, Under Dash (1) .............. 906
Heater Control Lights (2) ................... 194
Rocker Switch Indicator Light (Rear Window
Defogger, and Rear Wash/Wipe) ............... **
Soundbar Dome Light ..................... 912
** Bulbs only available from authorized dealer.
Exterior Lights Bulb Type
Backup Lights (2) ........................ 3157
Center High-Mounted Stop Light (1) .........L.E.D.
Fog Lights ............................. 9145
Front Park/Turn Lights (2) .................3157
Front Side Marker Lights (2) ................. 168
Headlights (2) .......................... H13
Stop/Tail/Turn Lights (2) ..................3157
Underhood Light ......................... 561
License Light ........................... 194 NOTE:
Numbers refer to commercial bulb types that
can be purchased from your local authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
BULB REPLACEMENT
NOTE: Lens fogging can occur under certain atmo-
spheric conditions. This will usually clear as atmospheric
conditions change to allow the condensation to change
back into a vapor. Turning the lamps on will usually
accelerate the clearing process.
Head Light
1. Open hood and support using prop rod.
2. Remove the front grille. Turn the retainers along the
top 1/4 turn counterclockwise and remove.
3. Pull the bottom of the grille away starting at one side
and working toward the other.
420 MAINTAINING YOUR VEHICLE

3. Turn the socket assembly 1/4 turn counterclockwise
and remove from housing. Pull the bulb straight from the
socket to replace.
Front Side Marker
1. Reach under the front fender flare and locate the front
side marker socket.
2. Turn the socket assembly counterclockwise 1/3 turn
and remove it from the housing. Pull the bulb straight
from the socket to replace.
Front Fog Light
1. Locate the front fog lamp in the front fascia, and
disconnect the electrical connector from underneath.
2. Turn the bulb 1/4 turn counterclockwise.

ABS (Anti-Lock Brake System)............208,309
Adding Fuel ........................... 340
Adding Washer Fluid ..................... 198
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 389
Air Conditioner Maintenance ............... 390
Air Conditioning ..................... 261,264
Air Conditioning Controls ................. 264
Air Conditioning, Operating Tips ............ 265
Air Conditioning Refrigerant ............... 391
Air Conditioning System .................. 264
Air Filter .............................. 389
Air Pressure, Tires ....................... 322
Airbag ................................ 51
Airbag Deployment ....................... 57
Airbag Light ......................... 60,208
Airbag Maintenance ....................... 59
Airbag, Side ............................ 57
Alarm (Security Alarm) .................... 18
Alignment and Balance ................... 328 Alterations/Modifications, Vehicle
............. 8
Antenna, Satellite Radio ................... 255
Antifreeze (Engine Coolant) ................ 424
Anti-Lock Brake System (ABS) ............105,309
Anti-Lock Warning Light .................. 208
Appearance Care ........................ 406
Arming Theft System (Security Alarm) ......... 18
Audio Systems (Radio) .................... 250
Auto Down Power Windows ................ 37
Automatic Transmission ................... 401
Fluid and Filter Changes ................. 401
Fluid Level Check ...................... 401
Fluid Type ........................... 401
Gear Ranges .......................... 281
Shifting ............................. 281
Special Additives ...................... 403
Torque Converter ...................... 285
Auxiliary Electrical Outlet (Power Outlet) ....... 116
Auxiliary Power Outlet .................... 116
446 INDEX

Charging System Light.................... 206
Chart, Tire Sizing ........................ 314
Check Engine Light
(Malfunction Indicator Light) .............213,380
Child Restraint .................... 62,63,69,72
Child Restraint Tether Anchors .............68,69
Child Seat .............................. 67
Climate Control ......................... 259
Clock ........................... 224,236,251
Compact Disc (CD) Maintenance ............. 258
Compass .............................. 215
Compass Calibration ..................... 217
Computer, Trip/Travel .................... 215
Console ............................... 118
Console, Floor .......................... 118
Contract, Service ........................ 439
Converter, Catalytic ...................... 386
Cooling System ......................... 394
Adding Coolant (Antifreeze) .............. 396Coolant Capacity
...................... 424
Coolant Level ......................... 397
Disposal of Used Coolant ................ 397
Drain, Flush, and Refill .................. 395
Inspection ........................... 394
Points to Remember .................... 398
Pressure Cap ......................... 396
Selection of Coolant (Antifreeze) .........395,424
Temperature Gauge ..................... 209
Corrosion Protection ..................... 406
Crankcase Emission Control System .......... 388
Cruise Light ........................... 209
Cup Holder ............................ 117
Customer Assistance ..................... 437
Data Recorder, Event ...................... 60
Daytime Running Lights ................... 99
Dealer Service .......................... 382
Defroster, Rear Window ................... 198
448 INDEX

Gasoline/Oxygenate Blends................ 337
Gauges Coolant Temperature .................... 209
Fuel ................................ 206
Odometer ............................ 211
Speedometer ......................... 206
Tachometer .......................... 209
Gear Ranges ........................ 276,281
General Information .................... 17,335
Glass Cleaning .......................... 410
Gross Axle Weight Rating ...............342,345
Gross Vehicle Weight Rating .............342,345
GVWR ............................... 342
Hands-Free Phone (UConnect™) ........85,250,251
Hard Drive (HDD) ....................... 250
HardTop ............................. 125
Hard Top, Modular ...................... 125
Hard Top Removal ....................... 129 Hazard Warning Flasher
................... 364
Head Restraints .......................... 89
Head Rests ............................. 89
Headlights Bulb Replacement ...................... 420
Dimmer Switch ........................ 98
Replacing ............................ 420
Switch ............................... 97
Heater ............................... 259
Heater, Engine Block ..................... 275
High Beam Indicator ..................... 207
Hitches Trailer Towing ........................ 348
Holder, Cup ........................... 117
Hood Release ........................... 94
Hoses ............................. 399,400
Hydraulic Clutch Fluid .................... 403
Ignition ............................... 12
452 INDEX

Back-Up............................. 422
Brake Assist Warning ................. 1 15,214
Brake Warning ........................ 207
Bulb Replacement ...................... 420
Cargo ............................... 95
Center Mounted Stop ................... 423
Check Engine (Malfunction Indicator) ........ 213
Cruise .............................. 209
Daytime Running ....................... 99
Dimmer Switch, Headlight ................ 98
Electronic Stability Program (ESP)
Indicator ....................... 1 15,213,214
Electronic Throttle Control Warning ......... 214
Engine Temperature Warning .............. 209
Fog .............................. 99,422
Hazard Warning Flasher ................. 364
Headlight Switch ....................... 97
Headlights ........................... 420
High Beam ........................... 207 High Beam Indicator
.................... 207
Instrument Cluster ...................... 97
Interior .............................. 95
Lights On Reminder ..................... 98
Low Fuel ............................ 206
LowTire ............................ 210
Oil Pressure .......................... 207
Passing .............................. 99
Rear Servicing ........................ 422
Rear Tail ............................ 422
Seat Belt Reminder ..................... 207
Sentry Key ........................... 209
Service .............................. 420
Side Marker .......................... 422
Tire Pressure Monitoring (TPMS) ........... 210
Traction Control ....................... 213
Turn Signal ................... 99,207,421,422
Warning (Instrument Cluster Description) ..... 206
Loading Vehicle ......................... 342
454 INDEX

Trip .............................210,211
Off-Pavement Driving (Off-Road) ............ 294
Off-Road Driving (Off-Pavement) ............ 294
Oil Change Indicator ..................... 212
Oil Change Indicator, Reset ................. 212
Oil, Engine ............................ 383
Capacity ............................ 424
Dipstick ............................. 383
Filter ............................... 385
Identification Logo ..................... 384
Materials Added to ..................... 385
Pressure Warning Light .................. 207
Recommendation ................... 384,424
Viscosity .......................... 384,424
Oil Pressure Light ....................... 207
Onboard Diagnostic System ..............379,380
Outside Rearview Mirrors .................. 84
Overheating, Engine ...................... 365
Owner’s Manual (Operator Manual) .......... 441Paint Care
............................. 406
Paint Damage .......................... 406
Panic Alarm ............................ 21
Parking Brake .......................... 308
Passing Light ........................... 99
PCV Valve ............................ 388
Pets .................................. 74
Phone, Cellular .................... 85,250,251
Phone, Hands-Free (UConnect™) ........85,250,251
Placard, Tire and Loading Information ......... 318
Polishing and Waxing ..................... 407
Port Universal Serial Bus (USB) ................ 250
USB ................................ 250
Power Distribution Center (Fuses) ............... 413
Door Locks ........................... 33
Steering .......................... 31 1,391
Windows ............................. 36
456 INDEX