Brake System - Jeep 2013 Wrangler Owner's Manual

• If frequent engine coolant (antifreeze) addi-
tions are required, the cooling system should
be pressure tested for leaks.
• Maintain engine coolant (antifreeze) concen-
tration at 50% OAT engine coolant (anti-
freeze) (minimum) and distilled water for
proper corrosion protection of your engine
which contains aluminum components.
• Make sure that the coolant expansion bottle
overflow hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your
vehicle is equipped with air conditioning,
keep the front of the condenser clean.
• Do not change the thermostat for Summer or
Winter operation. If replacement is ever nec-
essary, install ONLY the correct type thermo-
stat. Other designs may result in unsatisfac-
tory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.

Brake System

In order to assure brake system performance,
all brake system components should be in-
spected periodically. Refer to the "Maintenance
Schedule" for the proper maintenance intervals.
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WARNING!
Riding the brakes can lead to brake failure
and possibly an accident. Driving with your
foot resting or riding on the brake pedal can
result in abnormally high brake tempera-
tures, 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; how-
ever, 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 sys-
tem for leaks.
Refer to "Fluids, Lubricants, and Genuine Parts"
in "Maintaining Your Vehicle" for further informa-
tion.
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 mas-
ter cylinder reservoir.
(Continued)