2009 JEEP WRANGLER check engine light

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
MIL. Resolving the problem will turn the MIL 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.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition switch to the ON position, but do not
crank or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
7
MAINTAINING YOUR VEHICLE 403

adding any quantity of oil through the dipstick tube, wait
a minimum of two minutes for the oil to fully drain into
the transmission before rechecking the fluid level.
NOTE:If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two cold (lower) holes on the dipstick with
the fluid at approximately 70° F (21° C) (room tempera-
ture). If the fluid level is correctly established at room
temperature, it should be between the HOT (upper)
reference holes when the transmission reaches 180° F (21°
C). Remember it is best to check the level at the normal
operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50° F
(10° C), it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading. 7. Check for leaks. Release the parking brake.
NOTE:
To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated. It is
normal for the dipstick cap to spring back slightly from
its fully seated position, as long as its seal remains
engaged in the dipstick tube.
Special Additives
Automatic Transmission Fluid (ATF) is an engineered
product and its performance may be impaired by supple-
mental additives. Therefore, do not add any fluid addi-
tives to the transmission. The only exception to this
policy is the use of special dyes to aid in detecting fluid
leaks. In addition, avoid using transmission sealers as
they may adversely affect seals.
7
MAINTAINING YOUR VEHICLE 425

•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 6,000 miles (10 000 km) or six months, which-
ever comes first.
Your dealer will reset the oil change indicator message
after completing the scheduled oil change. If this sched-
uled oil change is performed by someone other than your
dealer, the message can be reset by referring to the steps
described under “Odometer/Trip Odometer” in the “In-
strument Cluster Description” section of this manual.
At Each Stop for Fuel
•Check the engine oil level about five minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required.
Once a Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
•Check all lights and other electrical items for correct
operation.
8
M A I
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N A
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C
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D
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SMAINTENANCE SCHEDULES 453

ABS (Anti-Lock Brake System)............203,316
Adding Fuel ........................... 361
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 409
Air Conditioner Maintenance ............... 410
Air Conditioning ..................... 266,269
Air Conditioning Controls ................. 269
Air Conditioning, Operating Tips ............ 270
Air Conditioning Refrigerant ................ 411
Air Conditioning System .................. 269
Air Filter .............................. 409
Air Pressure, Tires ....................... 343
Airbag ................................ 48
Airbag Deployment ....................... 56
Airbag Light ....................... 58,76,204
Airbag Maintenance ....................... 58
Airbag, Side ............................ 55
Alarm Light ........................... 204
Alarm (Security Alarm) .................... 17
Alterations/Modifications, Vehicle ............. 8Antenna, Satellite Radio
................... 259
Antifreeze (Engine Coolant) ................ 447
Anti-Lock Brake System (ABS) ............316,319
Anti-Lock Warning Light .................. 203
Appearance Care ........................ 428
Arming Theft System (Security Alarm) ......... 18
Auto Down Power Windows ................ 36
Automatic Transmission ................... 423
Fluid and Filter Changes ................. 423
Fluid Level Check ..................... 424
Fluid Type ........................... 423
Gear Ranges ......................... 288
Shifting ............................. 287
Special Additives ...................... 425
Torque Converter ...................... 291
Auxiliary Electrical Outlet (Power Outlet) ...... 106
Auxiliary Power Outlet ................... 106
Axle Lock .......................... 296,297
482 INDEX

Battery............................... 409
Emergency Starting ..................... 394
Keyless Transmitter Replacement (RKE) ....... 23
Belts, Seat ............................ 39,75
Body Mechanism Lubrication ............... 411
Brake Assist System ...................... 320
Brake Assist Warning Light ................. 211
Brake Control System, Electronic ............. 318
Brake System ........................... 421
Anti-Lock (ABS) .................... 316,319
Master Cylinder ....................... 422
Parking ............................. 315
Warning Light ........................ 202
Brake/Transmission Interlock ............... 286
Break-In Recommendations, New Vehicle ........ 73
Bulb Replacement ..................... 443,444
Bulbs, Light ............................ 76
Capacities, Fluid ........................ 447 Caps, Filler
Fuel ............................... 361
Power Steering ........................ 314
Car Washes ............................ 429
Carbon Monoxide Warning ...............74,360
Cargo Light ............................ 97
Cargo (Vehicle Loading) ................... 363
Cellular Phone ........................ 82,263
Center High Mounted Stop Light ............ 446
Certification Label ....................... 363
Chains, Tire ............................ 350
Changing A Flat Tire ..................... 389
Chart, Tire Sizing ........................ 335
Check Engine Light
(Malfunction Indicator Light) .............210,403
Checking Your Vehicle For Safety ............. 74
Checks, Safety ........................... 74
Child Restraint ...................... 61,68,71
Child Restraint Tether Anchors .............66,68
10
INDEX 483

Fuel Requirements.................. 356,447
Jump Starting ......................... 394
Oil .............................. 406,447
Oil Disposal .......................... 408
Oil Filter ............................ 408
Oil Selection .......................... 447
Overheating .......................... 388
Starting ............................. 277
Temperature Gauge .................... 204
Engine Oil Viscosity ...................... 408
Engine Oil Viscosity Chart ................. 408
Enhanced Accident Response Feature .......... 57
Entry System, Illuminated .................. 19
Event Data Recorder ...................... 59
Exhaust Gas Caution ................... 74,360
Exhaust System ....................... 74,413
Extender, Seat Belt ........................ 48
Exterior Finish Care ...................... 429
Exterior Lights .......................... 76 Fabric Care
......................... 432,433
Fabric Top ............................. 433
Filters Air Cleaner .......................... 409
Engine Oil ........................... 408
Finish Care ............................ 429
Flashers Hazard Warning ....................... 388
Turn Signal ................... 76,201,445,446
Flooded Engine Starting ................... 278
Fluid Capacities ......................... 447
Fluid Leaks ............................. 76
Fluid Level Checks ...................... 427
Automatic Transmission ................. 423
Engine Oil ........................... 406
Manual Transmission ................... 426
Power Steering ........................ 314
Fluids, Lubricants and Genuine Parts .......... 448
Fog Light Service ........................ 445
486 INDEX

Jacking Instructions...................... 391
Jump Starting .......................... 394
Key, Programming ........................ 16
Key, Replacement ........................ 15
Key, Sentry (Immobilizer) ................... 14
Key-In Reminder ......................... 13
Keyless Entry System ...................... 19
Keys ................................. 12
Lane Change and Turn Signals .............. 201
Lap Belts .............................. 39
Lap/Shoulder Belts ....................... 39
LATCH
(Lower Anchors and Tether for CHildren) .....66,68
Latches ................................ 76
Lead Free Gasoline ...................... 356
Leaks, Fluid ............................ 76
Light Bulbs ............................. 76 Lights
............................... 76,94
Airbag .......................... 58,76,204
Alarm .............................. 204
Anti-Lock ........................... 203
Anti-Lock Warning ..................... 203
Back-Up ............................ 446
Brake Assist Warning ................. 21 1,331
Brake Warning ........................ 202
Bulb Replacement ...................... 444
Cargo ............................... 97
Center Mounted Stop ................... 446
Check Engine (Malfunction Indicator) ........ 210
Cruise .............................. 205
Daytime Running ....................... 97
Dimmer Switch, Headlight ................ 96
Electronic Stability Program (ESP)
Indicator ......................... 21 1,331
Electronic Throttle Control Warning ......... 212
Engine Temperature Warning .............. 204
10
INDEX 489

Maintenance Schedule.................... 452
Malfunction Indicator Light
(Check Engine) ....................... 210,403
Manual, Service ......................... 477
Manual Transmission .................. 281,426
Fluid Level Check ..................... 426
Lubricant Selection ..................... 426
Shift Speeds .......................... 282
Master Cylinder (Brakes) .................. 422
Mini-Trip Computer ................... 212,213
Mirrors ................................ 81
Outside .............................. 82
Rearview ............................. 81
Modifications/Alterations, Vehicle ............. 8
Modular Hard Top ....................... 115
Monitor, Tire Pressure System ............... 351
Mopar Parts ......................... 404,476
Multi-Function Control Lever ................ 94New Vehicle Break-In Period
................ 73
Occupant Restraints ....................... 38
Octane Rating, Gasoline (Fuel) .............. 356
Odometer ............................. 207
Trip ............................. 206,207
Off-Pavement Driving (Off-Road) ............ 300
Off-Road Driving (Off-Pavement) ............ 300
Oil Change Indicator ..................... 209
Oil Change Indicator, Reset ................. 209
Oil, Engine ............................ 406
Capacity ............................ 447
Dipstick ............................. 406
Filter ............................... 408
Identification Logo ..................... 407
Materials Added to ..................... 408
Pressure Warning Light .................. 201
Recommendation ................... 407,447
Viscosity ......................... 408,447
10
INDEX 491