2013 JEEP WRANGLER UNLIMITED brake

MAINTAINING YOUR VEHICLECONTENTS  ENGINE COMPARTMENT — 3.6L ......... .561
 ONBOARD DIAGNOSTIC SYSTEM — OBD II . .562
▫ Loose Fuel Filler Cap Message ........... .562
 EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .563
 REPLACEMENT PARTS ................. .564
 DEALER SERVICE ..................... .564
 MAINTENANCE PROCEDURES .......... .565
▫ Engine Oil ......................... .566
▫ Engine Oil Filter ..................... .569 ▫ Engine Air Cleaner Filter ............... .569
▫ Maintenance-Free Battery .............. .570
▫ Air Conditioner Maintenance ............ .571
▫ Body Lubrication .................... .572
▫ Windshield Wiper Blades .............. .573
▫ Adding Washer Fluid ................. .574
▫ Exhaust System ..................... .574
▫ Cooling System ..................... .577
▫ Brake System ....................... .583
▫ Automatic Transmission – If Equipped ..... .585
7

ENGINE COMPARTMENT — 3.6L
1 — Integrated Power Module (Fuses) 7 — Washer Fluid Reservoir
2 — Battery 8 — Engine Coolant Reservoir
3 — Engine Oil Dipstick 9 — Air Cleaner Filter
4 — Automatic Transmission Dipstick (Under Engine Cover) 10 — Coolant Pressure Cap
5 — Engine Oil Fill 11 — Power Steering Fluid Reservoir
6 — Brake Fluid Reservoir
7 MAINTAINING YOUR VEHICLE 561

Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
WARNING!Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting or
riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You would not have your full
braking capacity in an emergency. Power Disc Brakes
Disc brakes do not require adjustment; however, several
hard stops during the break-in period are recommended
to seat the linings and wear off any foreign material.
Brake Master Cylinder
The fluid level in the master cylinders should be checked
whenever the vehicle is serviced. If necessary, add fluid
to bring level to the full level mark on the side of the
reservoir of the brake master cylinder. With disc brakes,
fluid level can be expected to fall as the brake pads wear.
If the brake fluid level is abnormally low, check system
for leaks.
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further information.
7 MAINTAINING YOUR VEHICLE 583

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

CAUTION!• Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque con-
verter shudder. Using a transmission fluid other
than that recommended by the manufacturer, and
will require more frequent fluid and filter changes.
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further fluid speci-
fication.
• If a transmission fluid leak occurs, visit your au-
thorized dealer immediately. Severe transmission
damage may occur. Your authorized dealer has the
proper tools to adjust the fluid level accurately. Fluid Level Check
It is best to check the fluid level when the transmission is
at normal operating temperature (approximately 180° F
(82° C). This occurs after at least 15 miles (25 km) of
driving. At normal operating temperature, the fluid
cannot be held comfortably between the fingertips.
Use the following procedure to check the transmission
fluid level properly:
1. Park the vehicle on level ground.
2. Run the engine at idle speed and normal operating
temperature.
3. Fully apply the parking brake, and press the brake
pedal.586 MAINTAINING YOUR VEHICLE

7. Check for leaks. Release the parking brake.
NOTE: To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
sure 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.
Fluid And Filter Changes
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
In addition, change the fluid and filter(s) if the transmis-
sion is disassembled for any reason. Clutch Hydraulic System (Manual Transmission) –
If Equipped
The clutch hydraulic system is fed by a segregated
volume of fluid within the brake system master cylinder
reservoir. In the event of leakage or wear, use only the
manufacturer’s recommended brake fluid. Refer to “Flu-
ids, Lubricants, and Genuine Parts” in “Maintaining Your
Vehicle” for further information.
Manual Transmission – If Equipped
Selection Of Lubricant
Use only manufacturer’s recommended manual transmis-
sion fluid. Refer to “Fluids, Lubricants, and Genuine Parts”
in “Maintaining Your Vehicle” for further information.588 MAINTAINING YOUR VEHICLE

• If you detect any stone chips or scratches in the paint,
touch them up immediately. The cost of such repairs is
considered the responsibility of the owner.
• If your vehicle is damaged due to a collision or similar
cause that destroys the paint and protective coating,
have your vehicle repaired as soon as possible. The
cost of such repairs is considered the responsibility of
the owner.
• If you carry special cargo such as chemicals, fertilizers,
de-icer salt, etc., be sure that such materials are well
packaged and sealed.
• If a lot of driving is done on gravel roads, consider
mud or stone shields behind each wheel.
• Use MOPAR  Touch Up Paint or equivalent on
scratches as soon as possible. Your authorized dealer
has touch up paint to match the color of your vehicle. Wheel And Wheel Trim Care
• All wheels and wheel trim, especially aluminum and
chrome plated wheels, should be cleaned regularly
with a mild soap and water to prevent corrosion.
• To remove heavy soil and/or excessive brake dust, use
MOPAR  Wheel Cleaner or equivalent or select a
non-abrasive, non-acidic cleaner.
CAUTION!Do not use scouring pads, steel wool, a bristle brush,
or metal polishes. Do not use oven cleaner. These
products may damage the wheel’s protective finish.
Avoid automatic car washes that use acidic solutions
or harsh brushes that may damage the wheel’s pro-
tective finish. Only MOPAR  Wheel Cleaner or
equivalent is recommended.
7 MAINTAINING YOUR VEHICLE 593

Cavity Car-
tridge
Fuse Mini
Fuse Description
J1 — —
J2 30 Amp
Pink Transfer Case
Module
J3 — —
J4 25 Amp
Natural Driver Door Node
J5 25 Amp
Natural Passenger Door
Node
J6 40 Amp
Green Anti-Lock Brake
System (ABS)
Pump/Stability
Control System Cavity Car-
tridge
Fuse Mini
Fuse Description
J7 30 Amp
Pink Anti-Lock Brake
System (ABS)
Valve/Stability
Control System
J8 — —
J9 40 Amp
Green PZEV Sec Motor/
Flex Fuel
J10 30 Amp
Pink Headlamp Wash
Relay/Manifold
Tuning Valve
J11 30 Amp
Pink Sway Bar
J12 30 Amp
Pink Rear Blower Motor/
Radiator Fan
7 MAINTAINING YOUR VEHICLE 599