2008 JEEP GRAND CHEROKEE brake sensor

NTCS (Traction Control System)............135
NBAS (Brake Assist System)...............136
NERM (Electronic Roll Mitigation)..........137
NESP (Electronic Stability Program).........138
NTSC (Trailer Sway Control)..............140
NESP/BAS Warning Lamp And ESP/TCS
Indicator Light.......................141
mRear Park Assist SystemÐ If Equipped.......142
NRear Park Assist Sensors................142
NRear Park Assist Warning Display.........143
NEnable/Disable The Rear Park Assist System . . 145
NService The Rear Park Assist System........145
NCleaning The Rear Park Assist System......146mRear Camera Ð If Equipped...............146
NTurning The Rear Camera On............146
NTurning The Rear Camera Off............147
mOverhead Console......................147
NCourtesy/Reading Lights................148
NSunglasses Storage....................148
mGarage Door Opener Ð If Equipped.........148
NProgramming HomeLinkt...............149
NGate Operator/Canadian Programming.....152
NUsing HomeLinkt.....................153
NReprogramming a Single HomeLinktButton . . 153
NSecurity............................153
NTroubleshooting Tips...................154
72 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ESP (Electronic Stability Program)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESP cor-
rects for over/under steering of the vehicle by applying
the brake of the appropriate wheel to assist in counter-
acting the over/under steer condition. Engine power
may also be reduced to help the vehicle maintain the
desired path.
ESP 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, ESP applies the brake of the appropri-
ate wheel to assist in counteracting the oversteer or
understeer condition.
²Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
²Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
The9ESP/TCS Indicator Light9located in the instrument
cluster, starts to flash as soon as the tires lose traction and
the ESP system becomes active. The9ESP/TCS Indicator
Light9also flashes when TCS is active. If the9ESP/TCS
Indicator Light9begins 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.
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

turn ESP on again, momentarily depress the9ESP OFFº
switch. This will restore the normal ªESP Onº mode of
operation.
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 ªESP PartialOffº mode by pressing the ªESP OFFº switch. Once the
situation requiring ESP to be switched to the ªESP Partial
Offº mode is overcome, turn ESP back on by momen-
tarily depressing the ªESP OFFº switch. This may be
done while the vehicle is in motion.
TSC (Trailer Sway Control)
TSC uses sensors in the vehicle to recognize an exces-
sively swaying trailer and will take the appropriate
actions to attempt to stop the sway. The system may
reduce engine power and apply the brake of the appro-
priate wheel(s) to counteract the sway of the trailer. TSC
will become active automatically once an excessively
swaying trailer is recognized. No driver action is re-
quired. Note that TSC cannot stop all trailers from
swaying. Always use caution when towing a trailer and
follow the tongue weight recommendations. Refer to
ªTrailer Towingº in Section 5 of this manual for more
information on towing a trailer with your vehicle. When
TSC is functioning, the ªESP/TCS Indicator Lightº will
ESP OFF Switch
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE