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
ABS. Applying the brakes very quickly results in the
best BAS assistance. To receive the benefit of the
system, you must apply continuous 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!
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 accidents,
including those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. The capabilities of a BAS-equipped ve-
hicle must never be exploited in a reckless or
dangerous manner, which could jeopardize the
user's safety or the safety of others. 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 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. This feature remains active even if TCS and
ESC are in the “Partial Off ” mode. Refer to “Electronic
Stability Control (ESC)” for further information.
ELECTRONIC ROLL MITIGATION (ERM)
This system anticipates the potential for wheel lift by
monitoring 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 will only intervene during very severe or
evasive driving maneuvers. 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.
137
KNOWING
YOUR
VEHICLE
SAFETY
STARTING
AND
DRIVING
W
ARNING
LIGHTS
AND
MESSAGES
IN AN
EMERGENCY
SERVICING
AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
WARNING!
Many factors, such as vehicle loading,
road con di
tions, and driving conditions,
influence the chance that wheel lift or rollover
may occur. ERM cannot prevent 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 dangerous
manner, which could jeopardize the user's safety
or the safety of others.
ELECTRONIC STABILITY CONTROL (ESC)
This system enhances directional control and stability
of the vehicle under various driving conditions. ESC
corrects for over-steering and under-steering the ve-
hicle by applying the brake of the appropriate wheel.
Engine power may also be reduced to help the vehicle
maintain the desired path.
The ESC uses sensors in the vehicle to determine the
path that the driver intends to steer the vehicle and
compares it to the actual path of the vehicle. When the
actual path does not match the intended path, the ESC
applies the brake of the appropriate wheel to assist in
counteracting the condition of over-steer or under-
steer. • Over-steer - when the vehicle is turning more than
appropriate for the steering wheel position.
• Under-steer - when the vehicle is turning less than appropriate for the steering wheel position.
WARNING!
•
Electronic Stability Control (ESC) can-
not prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded by prevailing road conditions.
• ESC cannot prevent collisions, including those
resulting from excessive speed in turns, driving on
very slippery surfaces, or hydroplaning. ESC also
cannot prevent collisions resulting from the loss
of vehicle control due to inappropriate driver
input for the conditions. Only a safe, attentive,
and skillfull driver can prevent collisions.
• The capabilities of an ESC equipped vehicle
must never be explained in a reckless or danger-
ous manner which could jeopardize the user's
safetyorthesafetyofothers.
138
KNOWING YOUR
VEHICLE
SAFETY
STARTING AND
DRIVING
W
ARNING LIGHTS AND
MESSAGES
IN AN
EMERGENCY
SERVICING AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
ESC Operating Modes
The ESC system has two available operating modes.
Full On
This is the normal operating mode for ESC. Whenever
the vehicle is started the system will be in this mode.
This mode should be used for most driving situations.
ESC should only be turned to “Partial Off ” for specific
reasons as noted. Refer to “Partial Off ” for additional
information.
Partial Off
The “ESC OFF” button is located in the switch bank
above the climate control. To enter the “Partial Off ”
mode, momentarily press the “ESC OFF” button and
the “ESC OFF” Indicator Light will illuminate. To turn
the ESC on again, momentarily press the “ESC OFF”
button and the “ESC OFF” Indicator Light will turn off.
This will restore the normal “ESC On” mode of opera-
tion.
(fig. 114)
NOTE:To improve the vehicle's traction when driving
with snow chains, or when starting off in deep snow,
sand, or gravel, it may be desirable to switch to the
“Partial Off ” mode by momentarily pressing the “ESC
OFF” button. Once the situation requiring “Partial
Off ” mode is overcome, turn ESC back on by momen-
tarily pressing the “ESC OFF” button. This may be
done while the vehicle is in motion.
WARNING!
• When in “Partial Off ” mode, the TCS
fu n
ctionalityofESC(exceptforthelim-
ited slip feature described in the TCS section) has
been disabled and the “ESC Off Indicator Light”
will be illuminated.When in “Partial Off ”mode,
the engine power reduction of TCS is disabled,
and the enhanced vehicle stability offered by the
ESC system is reduced.
• Trailer Sway Control (TSC) is disabled when
the ESC system is in the “Partial Off ” mode.
(fig. 114)
ESC OFF Button
139
KNOWING
YOUR
VEHICLE
SAFETY
STARTING
AND
DRIVING
W
ARNING
LIGHTS
AND
MESSAGES
IN AN
EMERGENCY
SERVICING
AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
ESC ACTIVATION/MALFUNCTION
INDICATOR LIGHT AND ESC OFF
INDICATOR LIGHTThe “ESC Activation/Malfunction Indicator
Light” in the instrument cluster will come on
when the ignition switch is turned to the ON
position. It should go out with the engine
running. If the “ESC Activation/Malfunction Indicator
Light” comes on continuously with the engine running,
a malfunction has been detected in the ESC system. If
this light remains on after several ignition cycles, and
the vehicle has been driven several kilometers at
speeds greater than 48 km/h, see your authorized
dealer as soon as possible to have the problem diag-
nosed and corrected.
The “ESC Activation/Malfunction Indicator Light” (lo-
cated in the instrument cluster) starts to flash as soon
as the tires lose traction and the ESC system becomes
active. The “ESC Activation/Malfunction Indicator
Light” also flashes when TCS is active. If the “ESC
Activation/Malfunction Indicator Light” begins to flash
during acceleration, ease up on the accelerator and
apply as little throttle as possible. Be sure to adapt your
speed and driving to the prevailing road conditions. NOTE:
• The “ESC Activation/Malfunction Indicator Light”
and the “ESC OFF Indicator Light” come on momen-
tarily each time the ignition switch is turned ON.
• Each time the ignition is turned ON, the ESC system will be ON even if it was turned off previously.
• The ESC system will make buzzing or clicking sounds when it is active. This is normal; the sounds will stop
when ESC becomes inactive following the maneuver
that caused the ESC activation.
The “ESC OFF Indicator Light” indicates the
Electronic Stability Control (ESC) is in Partial
OFF mode.
Hill Start Assist (HSA)
The HSA system is designed to assist the driver when
starting a vehicle from a stop on a hill. HSA will
maintain the level of brake pressure the driver applied
for a short period of time after the driver takes their
foot off of the brake pedal. If the driver does not apply
the throttle during this short period of time, the
system will release brake pressure and the vehicle will
roll down the hill. The system will release brake pres-
sure in proportion to the amount of throttle applied as
the vehicle starts to move in the intended direction of
travel.
140
KNOWING YOUR
VEHICLE
SAFETY
STARTING AND
DRIVING
W
ARNING LIGHTS AND
MESSAGES
IN AN
EMERGENCY
SERVICING AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
HSA Activation Criteria
The following criteria must be met in order for HSA to
activate:
• Vehicle must be stopped.
• Vehicle must be on a 6% (approximate) grade orgreater hill.
• Gear selection matches vehicle uphill direction (i.e., vehicle facing uphill is in forward gear; vehicle backing
uphill is in REVERSE gear).
WARNING!
There may be situations on minor hills
with a
loaded vehicle, or while pulling a
trailer where the system will not activate and
slight rolling may occur, which could cause a
collision with another vehicle or object . Always
remember the driver is responsible for braking
the vehicle.
HSA will work in REVERSE and all forward gears when
the activation criteria have been met. The system will
not activate if the vehicle is placed in NEUTRAL or
PARK. Towing With HSA
HSA will provide assistance when starting on a grade
when pulling a trailer.
WARNING!
• If you use a trailer brake controller
wit h
your trailer, your trailer brakes may
be activated and deactivated with the brake
switch. If so, when the brake pedal is released,
there may not be enough brake pressure to hold
the vehicle and trailer on a hill and this could
cause a collision with another vehicle or object
behind you. In order to avoid rolling down the hill
while resuming acceleration, manually activate
the trailer brake prior to releasing the brake
pedal. Always remember the driver is responsible
for braking the vehicle.
• HSA is not a parking brake. If you stop the
vehicle on a hill without putting the transmission
in PARK and using the parking brake, it will roll
down the hill and could cause a collision with
another vehicle or object . Always remember to
use the parking brake while parking on a hill, and
that the driver is responsible for braking the
vehicle.
141
KNOWING
YOUR
VEHICLE
SAFETY
STARTING
AND
DRIVING
W
ARNING
LIGHTS
AND
MESSAGES
IN AN
EMERGENCY
SERVICING
AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
HSA Off
If you wish to turn off the HSA system, it can be done
using the Customer Programmable Features in the
Electronic Vehicle Information Center (EVIC). Refer to
“Electronic Vehicle Information Center (EVIC)” in
“Knowing your vehicle” for further information.
TRAILER SWAY CONTROL (TSC)
TSC uses sensors in the vehicle to recognize an exces-
sively swaying trailer. TSC activates automatically once
the excessively swaying trailer is recognized. When
TSC is functioning, the “ESC Activation/Malfunction
Indicator Light” will flash, the engine power will be
reduced, and you will feel the brake being applied to
individual wheels in an attempt to stop the trailer from
swaying.NOTE:
The TSC is disabled when the ESC system is in
the “Partial Off ” mode.
WARNING!
• TSC cannot stop all trailers from
sw ayin
g. Always use caution when tow-
ing a trailer and follow the tongue weight recom-
mendations. Refer to “Trailer Towing” in “Starting
and Driving” for further information.
• If TSC activates while towing a trailer, stop the
vehicle at the nearest safe location and adjust
the trailer load to eliminate the trailer sway.
• Failure to follow these warnings can result in an
accident or serious personal injury.
142
KNOWING YOUR
VEHICLE
SAFETY
STARTING AND
DRIVING
W
ARNING LIGHTS AND
MESSAGES
IN AN
EMERGENCY
SERVICING AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
ONBOARD DIAGNOSTIC SYSTEM —
OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and auto-
matic transmission control systems. When these sys-
tems are operating properly, your vehicle will provide
excellent performance and fuel economy, as well as
engine emissions well within current government regu-
lations.
If any of these systems require service, the OBD II
system will turn on the “Malfunction Indicator Light”
(MIL). It will also store diagnostic codes and other
information to assist your service technician in making
repairs. Although your vehicle will usually be drivable
and not need towing, see your authorized dealer for
service as soon as possible.
•Prolonged driving with the MIL on
could cause further damage to the emis-
sion control system. It could also affect
fuel economy and driveability.The vehicle must be
serviced before any emissions tests can be per-
formed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
LOOSE FUEL FILLER CAP MESSAGE
(for versions/markets, where provided)
If the vehicle diagnostic system determines that the
fuel filler cap is loose, improperly installed, or damaged,
a “Check Gascap” message will display in the Electronic
Vehicle Information Center (EVIC). If this occurs,
tighten the fuel filler cap properly and press the TRIP
ODOMETER button to turn off the message. If the
problem continues, the message will appear the next
time the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the MIL.
143
KNOWING
YOUR
VEHICLE
SAFETY
STARTING
AND
DRIVING
W
ARNING
LIGHTS
AND
MESSAGES
IN AN
EMERGENCY
SERVICING
AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
If for some reason the power assist is interrupted, it
will still be possible to steer your vehicle. Under these
conditions, you will observe a substantial increase in
steering effort, especially at very low vehicle speeds
and during parking maneuvers.
NOTE:
• Increased noise levels at the end of the steeringwheel travel are considered normal and do not
indicate that there is a problem with the power
steering system.
• Upon initial start-up in cold weather, the power steering pump may make noise for a short amount of
time. This is due to the cold, thick fluid in the
steering system. This noise should be considered
normal, and it does not in any way damage the
steering system.
WARNING!
Continued operation with reduced
power s
teering assist could pose a safety
risk to yourself and others. Service should be
obtained as soon as possible.
Prolonged operation of the steering sys-
tem at the end of the steering wheel
travel will increase the steering fluid tem-
perature and it should be avoided when possible.
Damage to the power steering pump may occur.
POWER STEERING FLUID CHECK
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as an-
ticipated. Coordinate inspection efforts through an
authorized dealer.
144
KNOWING YOUR
VEHICLE
SAFETY
STARTING AND
DRIVING
W
ARNING LIGHTS AND
MESSAGES
IN AN
EMERGENCY
SERVICING AND CARE
TECHNICAL
SPECIFICATIONS
CONTENTS