Jeep GRAND CHEROKEE 2023 Information Manual page 20

WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the instrument
panel together with a dedicated message and/or acoustic
signal when applicable. These indications are indicative and
precautionary and as such must not be considered as
exhaustive and/or alternative to the information contained in
the Owner's Manual, which you are advised to read carefully in
all cases. Always refer to the information in this chapter in the
event of a failure indication. All active telltales will display first
if applicable. The system check menu may appear different
based upon equipment options and current vehicle status.
Some telltales are optional and may not appear.
R W L
ED ARNING IGHTS
Air Bag Warning Light
This warning light will illuminate to indicate a
fault with the air bag, and will turn on for four
to eight seconds as a bulb check when the
ignition is placed in the ON/RUN position.
This light will illuminate with a single chime when a fault
with the air bag has been detected, and it will stay on until
the fault is cleared. If the light is either not on during
startup, stays on, or turns on while driving, have the
system inspected at an authorized dealer as soon as
possible.
Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake light
turns on it may indicate that the parking brake
is applied, that the brake fluid level is low, or that there is
a problem with the Anti-Lock Brake System.
If the light remains on when the parking brake has been
disengaged, and the fluid level is at the full mark on the
master cylinder reservoir, it indicates a possible brake
hydraulic system malfunction or that a problem with the
Brake Booster has been detected by the Anti-Lock Brake
System (ABS) / Electronic Stability Control (ESC) system.
In this case, the light will remain on until the condition has
been corrected. If the problem is related to the brake
booster, the ABS pump will run when applying the brake,
and a brake pedal pulsation may be felt during each stop.
The dual brake system provides a reserve braking capacity
in the event of a failure to a portion of the hydraulic
system. A leak in either half of the dual brake system is
indicated by the Brake Warning Light, which will turn on
when the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is corrected.
GETTING TO KNOW YOUR INSTRUMENT PANEL
NOTE:
The light may flash momentarily during sharp cornering
maneuvers, which change fluid level conditions.
The vehicle should have service performed, and the
brake fluid level checked.
If brake failure is indicated, immediate repair is necessary.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have failed.
It will take longer to stop the vehicle. You could have a
collision. Have the vehicle checked immediately.
Vehicles equipped with the Anti-Lock Brake System (ABS)
are also equipped with Electronic Brake Force Distribution
(EBD). In the event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light. Immediate
repair to the ABS system is required.
Operation of the Brake Warning Light can be checked by
turning the ignition switch from the OFF position to the ON/RUN
position. The light should illuminate for approximately four
seconds. The light should then turn off unless the parking brake
is applied or a brake fault is detected. If the light does not
illuminate, have the light inspected by an authorized dealer.
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