Jeep Grand Cherokee Operating Information Manual page 291

the ignition switch is turned to the ON position,
have the light repaired as soon as possible.
Anti-Lock Brake System (ABS)
The Anti-Lock Brake System (ABS) provides
increased vehicle stability and brake perfor-
mance under most braking conditions. The sys-
tem automatically prevents wheel lock, and
enhances vehicle control during braking.
The ABS performs a self-check cycle to ensure
that the ABS is working properly each time the
vehicle is started and driven. During this self-
check, you may hear a slight clicking sound as
well as some related motor noises.
ABS is activated during braking when the sys-
tem detects one or more wheels begins to lock.
Road conditions such as ice, snow, gravel,
bumps, railroad tracks, loose debris, or panic
stops may increase the likelihood of ABS acti-
vation(s).
You also may experience the following when
ABS activates:
• The ABS motor noise (it may continue to run
for a short time after the stop).
• The clicking sound of solenoid valves.
• Brake pedal pulsations.
• A slight drop of the brake pedal at the end of
the stop.
These are all normal characteristics of ABS.
WARNING!
• The ABS contains sophisticated electronic
equipment that may be susceptible to in-
terference caused by improperly installed
or high output radio transmitting equip-
ment. This interference can cause possible
loss of anti-lock braking capability. Instal-
lation of such equipment should be per-
formed by qualified professionals.
• 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.
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 ve-
hicle must never be exploited in a reckless
or dangerous manner that could jeopar-
dize the user's safety or the safety of
others.
ABS is designed to function with the OEM tires.
Modification may result in degraded ABS per-
formance.
(Continued)
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