Jeep Grand Cherokee 2015, Operating Information Manual

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Your vehicle is also equipped with Trailer Sway
Control (TSC), Ready Alert Braking (RAB) and
Rain Brake Support (RBS). Further, all vehicles
equipped with a two-speed power transfer unit
have Hill Descent Control (HDC) and some
vehicles may also be equipped with Selec
Speed Control (SSC).
Anti-Lock Brake System (ABS)
The Anti-Lock Brake System (ABS) is designed
to aid the driver in maintaining vehicle control
under adverse braking conditions. The system
operates with a separate computer to modulate
hydraulic pressure, to prevent wheel lock-up
and help avoid skidding on slippery surfaces.
All vehicle wheels and tires must be the same
size and type, and tires must be properly in-
flated, to produce accurate signals for the com-
puter.
WARNING!
Significant over or underinflation of tires or
mixing sizes of tires or wheels on the vehicle
can lead to loss of braking effectiveness.
The ABS conducts a low-speed self-test at
about 12 mph (20 km/h). If you have your foot
lightly on the brake while this test is occurring,
you may feel slight pedal movement. The move-
ment can be more apparent on ice and snow.
This is normal.
The ABS pump motor runs during the self-test
at 12 mph (20 km/h) and during an ABS stop.
The pump motor makes a low humming noise
during operation, which is normal.
WARNING!
•
Pumping of the Anti-Lock Brakes will di-
minish their effectiveness and may lead to
a collision. Pumping makes the stopping
distance longer. Just press firmly on your
brake pedal when you need to slow down
or stop.
(Continued)
WARNING! (Continued)
•
The ABS cannot prevent the natural laws
of physics from acting on the vehicle, nor
can it increase braking or steering effi-
ciency beyond that afforded by the condi-
tion of the vehicle brakes and tires or the
traction afforded.
•
The ABS cannot prevent collisions, includ-
ing those resulting from excessive speed
in turns, following another vehicle too
closely, or hydroplaning.
•
The capabilities of an ABS equipped vehicle
must never be exploited in a reckless or
dangerous manner, which could jeopardize
the user’s safety or the safety of others.
CAUTION!
The ABS is subject to possible detrimental
effects of electronic interference caused by
improperly installed aftermarket radios or
telephones.
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