2013 JEEP WRANGLER UNLIMITED ECU

WARNING!• Use only manufacturer’s recommended brake
fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further
information. Using the wrong type of brake fluid
can severely damage your brake system and/or
impair its performance. The proper type of brake
fluid for your vehicle is also identified on the
original factory installed hydraulic master cylinder
reservoir.
• To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that has
been in a tightly closed container. Keep the master
cylinder reservoir cap secured at all times. Brake
fluid in a open container absorbs moisture from the
air resulting in a lower boiling point. This may (Continued) WARNING! (Continued)cause it to boil unexpectedly during hard or pro-
longed braking, resulting in sudden brake failure.
This could result in a collision.
• Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing
the brake fluid to catch fire. Brake fluid can also
damage painted and vinyl surfaces, care should be
taken to avoid its contact with these surfaces.
• Do not allow petroleum based fluid to contaminate
the brake fluid. Brake seal components could be
damaged, causing partial or complete brake failure.
This could result in a collision.584 MAINTAINING YOUR VEHICLE

ABS (Anti-Lock Brake System) ............... .303
Adding Engine Coolant (Antifreeze) ........... .579
Adding Fuel ............................ .510
Additives, Fuel .......................... .509
Airbag ..................................62
Airbag Deployment ........................71
Airbag Light .............................74
Airbag Maintenance ........................73
Airbag, Side ..............................70
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .569
Air Conditioner Maintenance ................ .571
Air Conditioning ......................... .392
Air Conditioning Controls .................. .392
Air Conditioning Filter .................... .402
Air Conditioning, Operating Tips ............. .403
Air Conditioning Refrigerant ................ .571
Air Conditioning System ................... .392
Air Pressure, Tires ........................ .483
Alarm Light ............................ .305 Alarm (Security Alarm) ......................19
Alterations/Modifications, Vehicle ...............9
Antenna, Satellite Radio .................... .352
Antifreeze (Engine Coolant) ................. .578
Disposal ............................ .581
Anti-Lock Brake System (ABS) ............... .455
Anti-Lock Warning Light ................... .303
Appearance Care ........................ .591
Arming Theft System (Security Alarm) ...........20
Assistance Towing ........................ .130
Auto Down Power Windows ..................42
Automatic Door Locks ......................39
Automatic Headlights ..................... .168
Automatic Oil Change Indicator .............. .325
Automatic Temperature Control (ATC) ......... .396
Automatic Transmission ................... .420
Adding Fluid ........................ .588
Fluid and Filter Changes ................ .588
Fluid Change ........................ .588634 INDEX

Illuminated Entry .......................21
Instrument Cluster ..................... .167
Interior ............................. .171
Lights On Reminder .................... .170
Low Fuel ........................... .300
Oil Pressure ......................... .301
Passing ............................. .170
Rear Servicing ........................ .609
Rear Tail ............................ .609
Seat Belt Reminder ..................... .301
Security Alarm (Theft Alarm) ............. .305
Service ............................. .607
Side Marker ......................... .609
Theft Alarm (Security Alarm) ............. .305
Tire Pressure Monitoring (TPMS) ........... .306
Traction Control ....................... .468
Turn Signal .......................... .103
Voltage ............................. .300
Warning (Instrument Cluster Description) .... .300 Loading Vehicle ......................... .513
Tires ............................... .477
Locking Axle ........................... .433
Locks ..................................36
Automatic Door ........................39
Child Protection ........................40
Door ................................36
Power Door ...........................38
Lubrication, Body ........................ .572
Maintenance Free Battery ................... .570
Maintenance Procedures ................... .565
Maintenance Schedule ..................... .614
Malfunction Indicator Light (Check Engine) .......311
Manual, Service ......................... .630
Manual Transmission ..................... .414
Fluid Level Check ..................... .589
Lubricant Selection ..................... .588
Shift Speeds ......................... .415
10 INDEX 643

Adjustable Upper Shoulder Anchorage ........55
And Pregnant Women ....................61
Child Restraint .........................76
Extender ..............................61
Front Seat .............................48
Inspection ........................... .101
Pretensioners ..........................59
Reminder ........................... .301
Untwisting Procedure ....................55
Seats ................................. .152
Adjustment .......................... .152
Easy Entry .......................... .155
Fold and Tumble Rear .................. .161
Heated ............................. .159
Height Adjustment ..................... .154
Rear Folding ......................... .164
Removal ............................ .163
Seatback Release ...................... .154
Tilting .............................. .154 Security Against Theft .......................19
Security Alarm (Theft Alarm) ..................19
Sentry Key (Immobilizer) ....................16
Sentry Key Programming ....................18
Sentry Key Replacement .....................17
Service Assistance ........................ .625
Service Contract ......................... .627
Service Manuals ......................... .630
Settings, Personal ........................ .331
Setting the Clock ......................... .337
Shifting ............................... .418
Automatic Transmission ................. .418
Manual Transmission ................... .414
Transfer Case, Shifting into Transfer Case
Neutral (N) .......................... .534
Transfer Case, Shifting out of Transfer Case
Neutral (N) .......................... .536
Shift Lever Override ...................... .554
Shoulder Belts ............................48
10 INDEX 647