2013 JEEP WRANGLER service indicator

Tread Wear Indicators
Tread wear indicators are in the original equipment tires
to help you in determining when your tires should be
replaced.
These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes 1/16 in (2 mm). When the tread is worn to the
tread wear indicators, the tire should be replaced. Refer to
replacement tires in this section for further information.
Life Of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
•Driving style
• Tire pressure
• Distance driven
• Performance tires, tires with a speed rating of V or
higher, and summer tires typically have a reduced
tread life. Rotation of these tires per the vehicle main-
tenance schedule is highly recommended.
1—WornTire
2—NewTire 496 STARTING AND OPERATING

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light” (MIL). It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions tests
can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
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
clicking sound is heard. This is an indication that the
570 MAINTAINING YOUR VEHICLE

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
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. Cycle the ignition switch to the ON position, but do not crank or start the engine.
2. If you crank or start the engine, you will have to start this test over.
3. As soon as you cycle the ignition switch to the ON position, you will see the MIL symbol come on as part
of a normal bulb check.
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MAINTAINING YOUR VEHICLE 571

7. Install the A/C air filter with the air filter positionindicators pointing in the same direction as removal.
CAUTION!
The A/C air filter is identified with an arrow to
indicate airflow direction through the filter. Failure
to properly install the filter will result in the need to
replace it more often.
8. Rotate the glove compartment door back into position.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Body Lubrication
Locks and all body pivot points, including such items as
seat tracks, door hinge pivot points and rollers, liftgate,
tailgate, sliding doors and hood hinges, should be lubri-
cated periodically with a lithium based grease, such as
MOPAR® Spray White Lube to assure quiet, easy opera-
tion and to protect against rust and wear. Prior to the
application of any lubricant, the parts concerned should
be wiped clean to remove dust and grit; after lubricating
excess oil and grease should be removed. Particular
attention should also be given to hood latching compo-
nents to ensure proper function. When performing other
underhood services, the hood latch, release mechanism
and safety catch should be cleaned and lubricated.
The external lock cylinders should be lubricated twice a
year, preferably in the Fall and Spring. Apply a small
amount of a high quality lubricant, such as MOPAR®
Lock Cylinder Lubricant directly into the lock cylinder.
582 MAINTAINING YOUR VEHICLE

REPLACEMENT BULBS
Interior Bulbs
Bulb Number
Automatic Transmission Indicator
Lamp 658
Heater Control Lamps (2) 194
Rocker Switch Indicator Lamp
(Rear Window Defogger, and Rear
Wash/Wipe) **
Soundbar Dome Lamp 912
** Bulbs only available from authorized dealer.
Exterior Bulbs
Bulb Number
Headlamps (2) H13
Front Park/Turn Signal Lamps (2) 3157
Front Side Marker Lamps (2) 168
Fog Lamps PSX24W
Rear Stop/Tail/Turn Lamps (2) 3157
Center High-Mounted Stop Lamp L.E.D.
Backup Lamps (2) 3157
License Lamp 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.
614 MAINTAINING YOUR VEHICLE

MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that ser-
vice is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures, and E85 fuel usage will
influence when the “Change Oil” or “Oil Change Re-
quired” message is displayed. Severe Operating Condi-
tions can cause the change oil message to illuminate as
early as 3,500 miles (5,600 km) since last reset. Have your
vehicle serviced as soon as possible, within the next 500
miles (805 km).On Electronic Vehicle Information Center (EVIC)
equipped vehicles, “Oil Change Required” will be dis-
played in the EVIC and a single chime will sound,
indicating that an oil change is necessary.
On Non-EVIC equipped vehicles, “Change Oil” will flash
in the instrument cluster odometer and a single chime
will sound, indicating that an oil change is necessary.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Electronic Vehicle
Information Center (EVIC)/Oil Change Required” in
“Understanding Your Instrument Panel” or under “In-
strument Cluster Description/Odometer/Trip Odom-
eter” in “Understanding Your Instrument Panel” for
further information.
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S622 MAINTENANCE SCHEDULES

Cellular Phone...........................115
Center High Mounted Stop Light ..............617
Certification Label ........................ .519
Chains, Tire ............................ .499
Changing A Flat Tire ...................... .547
Chart, Tire Sizing ........................ .477
Check Engine Light (Malfunction Indicator Light) . .315
Checking Your Vehicle For Safety ..............100
Checks, Safety .......................... .100
Child Restraint ............................75
Child Safety Locks .........................42
Clean Air Gasoline ....................... .513
Cleaning Wheels .............................. .602
Climate Control ......................... .395
Clock ................................. .341
Cold Weather Operation ....................416
Compact Disc (CD) Maintenance ..............394
Compact Spare Tire ....................... .493Compass
.............................. .319
Compass Calibration ...................... .322
Compass Variance ........................ .321
Computer, Trip/Travel ..................... .319
Connector UCI................................ .386
Universal Consumer Interface (UCI) ..........386
Console ............................... .191
Console, Floor .......................... .191
Contract, Service ......................... .636
Coolant Pressure Cap (Radiator Cap) ...........589
Cooling System .......................... .586
Adding Coolant (Antifreeze) ...............588
Coolant Capacity ...................... .618
Coolant Level ......................... .591
Disposal of Used Coolant .................590
Drain, Flush, and Refill ...................587
Inspection ........................... .587
Points to Remember .....................591
646 INDEX

Hazard Warning Flasher..................546
Headlights ........................... .169
Headlight Switch ...................... .169
High Beam ........................... .305
High Beam Indicator .....................305
Hill Descent Control Indicator ..............474
Illuminated Entry ........................23
Instrument Cluster ..................... .169
Interior ............................. .173
Lights On Reminder .....................171
Low Fuel ............................ .304
Oil Pressure .......................... .305
Passing ............................. .172
Rear Servicing ........................ .617
Rear Tail ............................ .617
Seat Belt Reminder ..................... .305
Security Alarm (Theft Alarm) ...............309
Service .............................. .615
Side Marker .......................... .617Theft Alarm (Security Alarm)
...............309
Tire Pressure Monitoring (TPMS) ............310
Traction Control ....................... .472
Turn Signal .......................... .103
Voltage ............................. .304
Warning (Instrument Cluster Description) ......304
Loading Vehicle ......................... .519
Tires ............................... .482
Locking Axle ........................... .438
Locks ..................................38
Automatic Door .........................41
Child Protection .........................42
Door .................................38
Power Door ............................40
Steering Wheel ..........................17
Lubrication, Body ........................ .582
Maintenance Free Battery ....................577
Maintenance Procedures ....................573
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INDEX 653