2008 JEEP GRAND CHEROKEE brake light

NAutomatic Headlight Leveling Ð HID
Headlights Only......................123
NLights-On Reminder...................123
NFog Lights Ð If Equipped...............123
NTurn Signals.........................124
NHigh Beam Switch....................124
NPassing Light........................124
NHeadlight Time Delay..................124
NInterior Lights.......................125
NFront Map/Reading Lights..............125
mWindshield Wipers And Washers............126
NMist...............................127
NSpeed Sensitive Intermittent Wiper System . . . 127NRain Sensing WipersÐIf Equipped.........128
mTilt/Telescoping Steering Column...........129
mAdjustable Pedals Ð If Equipped...........130
mElectronic Speed Control Ð If Equipped......131
NElectronic Speed Control Operation........131
NTo Activate..........................132
NTo Set At A Desired Speed...............132
NTo Deactivate........................132
NTo Resume Speed.....................133
NTo Vary The Speed Setting...............133
NTo Accelerate For Passing...............133
mElectronic Brake Control System............134
NABS (Anti-Lock Brake System)............134
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 71
3

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

even when the doors and liftgate are open. While in the
ªOffº position the instrument panel lighting is at the
lowest light level and may not be suitable for night
driving.
Daytime Running Lights Ð If Equipped
The high beam headlights come on at a low intensity
level whenever the engine is running, and the transmis-
sion in not in the P (Park) position. The lights will remain
on until the ignition switch is turned to LOCK/ACC, or
the parking brake is engaged. The headlight switch must
be used for normal night time driving.
Automatic Headlight Leveling Ð HID Headlights
Only
This feature prevents the headlights from interfering
with the vision of oncoming drivers. Headlight leveling
automatically adjusts the height of the headlight beam in
reaction to changes in vehicle pitch.
Lights-On Reminder
If the headlights or parking lights are on after the ignition
switch has been turned to LOCK/ACC, a chime will
sound when the driver's door is opened.
Fog Lights Ð If Equipped
The fog light switch is located in the multi-
function control lever. To activate the fog lights,
turn on the park/turn lights, low beam headlights,
or ªAutoº headlights and pull out the end of the multi-
function control lever. A light in the instrument cluster
shows when the fog lights are on.
NOTE:Turning on the high beam headlights turns off
the fog lights.
A front fog light is a lighting device providing illumina-
tion forward of the vehicle under conditions of fog, rain,
snow, or dust. Principally, the front fog light supplements
the lower beam of a standard headlight system.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 123
3

NOTE:The speed control system maintains speed up
and down hills. A slight speed change on moderate hills
is normal.
On steep hills a greater speed loss or gain may occur so
it may be preferable to drive without speed control.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes ABS (Anti-Lock Brake
System), TCS (Traction Control System), BAS (Brake
Assist System), ERM (Electronic Roll Mitigation), and
ESP (Electronic Stability Program). All five of these
systems work together to enhance vehicle stability and
control in various driving conditions.
Also, your vehicle is equipped with TSC (Trailer Sway
Control).
ABS (Anti-Lock Brake System)
This system aids the driver in maintaining vehicle control
under adverse braking conditions. The system controls
hydraulic brake pressure to prevent wheel lock-up and
help avoid skidding on slippery surfaces during braking.
Refer to ªAnti-Lock Brake Systemº in Section 5 of this
manual for more information about ABS.
134 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

flash, the engine power may be reduced and you may
feel the brakes being applied to individual wheels to
attempt to stop the trailer from swaying. TSC is disabled
when the ESP system is in the Partial Off mode.
WARNING!
If TSC activates while driving, slow the vehicle
down, stop at the nearest safe location, and adjust the
trailer load to eliminate trailer sway.
ESP/BAS Warning Lamp and ESP/TCS Indicator
Light
The malfunction indicator lamp for the ESP is
combined with the BAS indicator. The yellow
ªESP/BAS Warning Lampº and the yellow
ªESP/TCS Indicator Lightº in the instrumentcluster both come on when the ignition switch is turned
to the ªONº position. They should both go out with the
engine running.
If the ªESP/BAS Warning Lampº comes on
continuously with the engine running, a mal-
function has been detected in either the ESP or
the BAS system, or both. If this light remains on
after several ignition cycles, and the vehicle has been
driven several miles at speeds greater than 30 mph (48
km/h), see your authorized dealer as soon as possible to
have the problem diagnosed and corrected.
NOTE:²9The9ESP/TCS Indicator Light9and the9ESP/BAS
Warning Lamp9come onmomentarilyeach time the
ignition switch is turned ON.
²Each time the ignition is turned ON, the ESP System
will be ON even if it was turned off previously.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 141
3

INSTRUMENT CLUSTER DESCRIPTION
1. Speedometer
Indicates vehicle speed.
2. Brake Warning Light
The BRAKE warning light will come on when
the ignition is first turned on, and stay on
briefly as a bulb check. If the bulb does not
come on during starting, have the bulb re-
paired promptly. If the light stays on longer, it may be an
indication that the parking brake has not been released.
If the light remains on when the parking brake is off, it
indicates a possible brake hydraulic system malfunction
or low fluid level. In this case, the BRAKE warning light
will remain on until the cause is corrected. If a brake
malfunction is indicated, immediate repair is necessary
and continued operation of the vehicle in this condition is
dangerous.3. Turn Signal Indicator Light
The arrow will flash with the exterior turn signal
when the turn signal lever is operated.
If the vehicle electronics sense that the vehicle has
traveled about one mile with the turn signals on, a chime
will sound to alert you to turn the signals off. If either
indicator flashes at a rapid rate, check for a defective
outside light bulb.
4. High Beam Indicator Light
Indicates that headlights are on high beam.
5. Malfunction Indicator Light
This light is part of an onboard diagnostic system
called OBD II that monitors engine and auto-
matic transmission control systems. The light will
illuminate when the key is in the ON position
174 UNDERSTANDING YOUR INSTRUMENT PANEL