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ELECTRONIC BRAKE CONTROL SYSTEM
If your vehicle is equipped with the advanced electronic
brake control system that includes Anti-Lock Brake Sys-
tem (ABS), Traction Control System (TCS) Brake Assist
System (BAS), and Electronic Stability Program (ESP). All
four systems work together to enhance vehicle stability
and control in various driving conditions, and are com-
monly referred to as ESP.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and engine
power is reduced to provide enhanced acceleration and
stability. A feature of the TCS system functions similar to
a limited slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is
spinning faster than the other, the system will apply the
brake of the spinning wheel. This will allow more engine
torque to be applied to the wheel that is not spinning.
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 sens-
ing 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 continuous brak-
ing pressure during the stopping sequence. Do not
reduce brake pedal pressure unless braking is no longer
desired. Once the brake pedal is released, the BAS is
deactivated.
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This mode should be used for most driving situations.
ESP should only be turned to “Partial ESP” for specific
reasons as noted below.
Partial ESP
This mode is entered by momentarily depressing the
“ESP OFF” switch.
When in “Partial ESP” mode, the TCS portion of ESP has
been disabled, the thresholds for ESP activation are
raised, and the “ESP/TCS Indicator Light” will be illu-
minated. This mode is intended to be used for a more
spirited driving experience, or if the vehicle is in deep
snow, sand, or gravel conditions and more wheel spin
than ESP would normally allow is required.
To turn ESP on again, momentarily depress the
“ESP OFF” switch.WARNING!
In the Partial ESP mode, the engine torque reduction
and stability features are desensitized. Therefore, the
enhanced vehicle stability offered by ESP is unavail-
able.
NOTE:To improve the vehicle’s traction when driving
with snow chains, or starting off in deep snow, sand or
gravel, it may be desirable to switch to the “Partial ESP”
mode by pressing the “ESP OFF” switch. Once the
situation requiring ESP to be switched to the “Partial
ESP” mode is overcome, turn ESP back on by momen-
tarily depressing the “ESP OFF” switch. This may be
done while the vehicle is in motion.
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Full Off
This mode is intended for off-highway or off-road use
only and should not be used on any public roadways. In
this mode, all TCS and ESP stability features are turned
OFF. To enter the “Full Off” mode, depress and hold the
ESP OFF switch for five seconds while the vehicle is
stopped with the engine running. After five seconds, a
chime will sound, the ESP/TCS Indicator Light will
illuminate, and theESP OFFmessage will display in the
vehicle odometer. Press and release the TRIP ODOM-
ETER button located on the instrument cluster to clear
this message. The “ESP OFF” message may appear in the
Electronic Vehicle Information Center (EVIC). Refer to
“Electronic Vehicle Information Center (EVIC)” in Sec-
tion 4. To turn ESP ON again, momentarily depress the
ESP OFF switch.WARNING!
In the ESP “Full Off” mode, the engine torque
reduction and stability features are cancelled. There-
fore, the enhanced vehicle stability offered by ESP is
unavailable.
NOTE:When the ESP is switched OFF, a feature of the
system remains active. This feature controls wheel spin
across an axle quite similarly to a limited slip differential.
If one wheel on an axle is spinning faster than the other,
the system will apply the brake of the spinning wheel
and allow more engine torque to be applied to the wheel
that is not spinning. To improve the vehicle’s traction
when driving with tire chains, or when starting off in
deep snow, sand, or gravel, it may be desirable to switch
to the “Partial Off” mode by momentarily depressing the
ESP OFF switch.
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