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Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by
sensing the rate and amount of brake application and
then applies optimum pressure to the brakes. This can
help reduce braking distances. The BAS complements
the Anti-Lock Brake System (ABS). Applying the brakes
very quickly results in the best BAS assistance. To
receive the benefit of the system, you must apply con-
tinuous braking pressure during the stopping sequence
(do not “pump” the brakes). Do not reduce brake pedal
pressure unless braking is no longer desired. Once the
brake pedal is released, the BAS is deactivated.
WARNING!
The Brake Assist System (BAS) cannot prevent the
natural laws of physics from acting on the vehicle, nor
can it increase the traction afforded by prevailing
road conditions. BAS cannot prevent collisions,
including those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydroplan-
ing. The capabilities of a BAS-equipped vehicle must
never be exploited in a reckless or dangerous man-
ner, which could jeopardize the user's safety or the
safety of others.
Brake System Warning Light
The red Brake System 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 Brake System Warning Light remains on or comes
on while driving, it indicates that the brake system is
not functioning properly and that immediate service is
required. If the Brake System Warning Light does not
come on when the ignition is placed in the ON/RUN
mode, have the light repaired as soon as possible.
Electronic Brake Force Distribution
(EBD)
EBD manages the distribution of the braking torque
between the front and rear axles by limiting braking
pressure to the rear axle. This is done to prevent over-
slip of the rear wheels to avoid vehicle instability, and to
prevent the rear axle from entering ABS before the front
axle.
Electronic Roll Mitigation (ERM)
ERM anticipates the potential for wheel lift by monitor-
ing the driver’s steering wheel input and the speed of
the vehicle. When ERM determines that the rate of
change of the steering wheel angle and vehicle’s speed
are sufficient to potentially cause wheel lift, it then
applies the appropriate brake and may also reduce
engine power to lessen the chance that wheel lift will
occur. ERM can only reduce the chance of wheel lift
occurring during severe or evasive driving maneuvers; it
cannot prevent wheel lift due to other factors, such as
road conditions, leaving the roadway, or striking objects
or other vehicles.
NOTE:
ERM is disabled any time the ESC is in “Full Off” mode
(if equipped). See
page 229 for a complete expla-
nation of the available ESC modes.
WARNING!
Many factors, such as vehicle loading, road condi-
tions and driving conditions, influence the chance
that wheel lift or rollover may occur. ERM cannot pre-
vent all wheel lift or rollovers, especially those that
involve leaving the roadway or striking objects or
other vehicles. The capabilities of an ERM-equipped
vehicle must never be exploited in a reckless or dan-
gerous manner which could jeopardize the user's
safety or the safety of others.
Electronic Stability Control (ESC)
ESC enhances directional control and stability of the
vehicle under various driving conditions. ESC corrects
for oversteering or understeering of the vehicle by
applying the brake of the appropriate wheel(s) to assist
in counteracting these conditions. Engine power may
also be reduced to help the vehicle maintain the
desired path.
•
Oversteer — when the vehicle is turning more than
appropriate for the steering wheel position.
•
Understeer — when the vehicle is turning less than
appropriate for the steering wheel position.
ESC uses sensors in the vehicle to determine the
vehicle path intended by the driver and compares it to
the actual path of the vehicle. When the actual path
does not match the intended path, ESC applies the
brake of the appropriate wheel to assist in counteract-
ing the oversteer or understeer condition.
The ESC Activation/Malfunction Indicator Light located
in the instrument cluster will start to flash as soon as
the ESC system becomes active. The ESC Activation/
Malfunction Indicator Light also flashes when the Trac-
tion Control System (TCS) is active. If the ESC
SAFETY 229
6
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