Brake System - Jeep 2019 NEW WRANGLER User Manual

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WARNING!
• When working near the radiator cooling
fan, disconnect the fan motor lead or
turn the ignition to the OFF mode. The
fan is temperature controlled and can
start at any time the ignition is in the ON
mode.
Coolant Checks
Check the engine, battery (if equipped), in-
tercooler (if equipped), and Motor Generator
Unit (MGU) (if equipped) coolant (antifreeze)
protection every 12 months (before the onset
of freezing weather, where applicable). If the
engine, battery (if equipped), intercooler (if
equipped), and MGU (if equipped) coolant
(antifreeze) is dirty or rusty in appearance,
the system should be drained, flushed and
refilled with fresh OAT coolant (conforming to
MS.90032) by an authorized dealer. Check
the front of the A/C condenser (if equipped)
or radiator for any accumulation of bugs,
leaves, etc. If dirty, clean by gently spraying
water from a garden hose vertically down the
face of the A/C condenser (if equipped) or the
back of the radiator core.
Check the engine, battery (if equipped), in-
tercooler (if equipped), and MGU (if
equipped) cooling system hoses for brittle
rubber, cracking, tears, cuts, and tightness of
the connection at the coolant recovery bottle
and radiator. Inspect the entire system for
leaks. DO NOT REMOVE THE COOLANT
PRESSURE CAP WHEN THE COOLING SYS-
TEM IS HOT.

Brake System

In order to assure brake system performance,
all brake system components should be in-
spected periodically. Refer to the "Mainte-
nance Plan" in this section 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 tem-
WARNING!
peratures, excessive lining wear, and pos-
sible brake damage. You would not have
your full braking capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should
be checked whenever the vehicle is serviced,
or immediately if the brake system warning
light is on. If necessary, add fluid to bring
level within the designated marks on the side
of the reservoir of the brake master cylinder.
Be sure to clean the top of the master cylin-
der area before removing cap. With disc
brakes, fluid level can be expected to fall as
the brake pads wear. Brake fluid level should
be checked when pads are replaced. If the
brake fluid is abnormally low, check the sys-
tem for leaks.
Refer to "Fluids And Lubricants" in "Techni-
cal Specifications" for further information.
219

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