Jeep GRAND CHEROKEE 2023, Owner'S Manual

Page: 224 / 394

SAFETY 223
Anti-Lock Brake System (ABS) Warning
Light
The yellow ABS Warning Light will turn on when the ignition
is placed in the ON/RUN mode and may stay on for as long
as four seconds.
If the ABS Warning Light remains on or comes on while
driving, it indicates that the anti-lock portion of the brake
system is not functioning and that service is required.
However, the conventional brake system will continue to
operate normally if the ABS Warning Light is on.
If the ABS Warning Light is on, the brake system should be
serviced as soon as possible to restore the benefits of
Anti-Lock Brakes. If the ABS Warning Light does not come
on when the ignition is placed in the ON/RUN mode, have
the light repaired as soon as possible.
D
ROWSY
D
RIVER
D
ETECTION
(DDD) —
I
F
E
QUIPPED
DDD detects when the driver is feeling fatigued and warns
the driver to pull over and take a break.
To Activate/Deactivate
DDD can be activated and deactivated through the
Uconnect system by selecting the following in order:
1. “Safety & Driving Assistance”
2. “Drowsy Driver Detection”
System Intervention
Using feedback obtained from the driver’s steering
patterns, any buttons/switches that are pressed, and from
the front camera, the system implements two operating
logics:
 The first operating logic takes the driving style into
account, observing the road and detecting to what
extent the driver can continue driving with few
lane-crossing events.

The second operating logic measures the time spent
behind the wheel with the vehicle speed above 40 mph
(60 km/h) and below 100 mph (160 km/h).
If the driving style indicates that the driver is unable to
follow the road trajectory and respect the horizontal lane
markings while within the operating speed range of the
system, a pop up will display on the instrument cluster
display to suggest that the driver should stop for a break.
An audible signal will also sound.
WARNING!
The DDD system is an aid for driving and does not
relieve the driver of the responsibility of driving the
vehicle. If you experience fatigue while driving, pull over
safely for a break without waiting for the DDD to
intervene. Only return to the road when you are in the
right physical and mental condition to prevent
endangering yourself and other drivers.
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