2008 JEEP GRAND CHEROKEE lock

Using Speed Control On Hills
The automatic transmission may downshift on hills to
maintain the vehicle set speed.
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) and, if it has 4WD with the NV245 two-speed
transfer case, HSA (Hill Start Assist) and HDC (Hill
Descent 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.
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
ABS (Anti-Lock Brake System) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. ABS cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. Only a safe, attentive, and skillful driver can
prevent accidents. The capabilities of an ABS-
equipped vehicle must never be exploited in a reck-
less or dangerous manner which could jeopardize the
user's safety or the safety of others.
TCS (Traction Control System)
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.
This feature remains active even if TCS and ESP are in
either the ªPartial Offº or ªFull Offº modes. Refer to ªESP
(Electronic Stability Program)º in this section for more
information.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 139
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BAS (Brake Assist System)
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 applycontinuousbrak-
ing pressure during the stopping sequence (do not
ªpumpº 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 (Brake Assist System) cannot prevent the natu-
ral 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 hydroplaning. Only a
safe, attentive, and skillful driver can prevent acci-
dents. The capabilities of a BAS-equipped vehicle
must never be exploited in a reckless or dangerous
manner which could jeopardize the user's safety or
the safety of others.
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Courtesy/Reading Lights
At the forward end of the console are two courtesy/
reading lights.
Press the lens to turn these lights on. Press a second time
to turn the lights off.
The lights also turn on when a front door or rear door is
opened. The lights will also turn on when the unlock
button on the remote keyless entry transmitter is pressed.
Sunglasses Storage
At the rear of the console a compartment is provided for
the storage of a pair of sunglasses.The storage compartment access is a9push/push9design.
Push the finger depression on the overhead console to
open. Push the finger depression to close.
GARAGE DOOR OPENER Ð IF EQUIPPED
HomeLinktreplaces up to three remote controls (hand
held transmitters) that operate devices such as garage
door openers, motorized gates, lighting, or home security
systems. The HomeLinktunit operates off of your vehi-
cle's battery.
NOTE:HomeLinktis disabled when the Vehicle Secu-
rity Alarm is active.
158 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

If you unplugged the device for training, plug it back in
at this time.
Then proceed with Step 4 under ªProgramming
HomeLink.º earlier in this section.
Using HomeLinkT
To operate, simply press and release the programmed
HomeLinktbutton. Activation will now occur for the
trained device (i.e. garage door opener, gate operator,
security system, entry door lock, home/office lighting,
etc. The hand-held transmitter of the device may also be
used at any time.
Reprogramming a Single HomeLinkTButton
To re-program a channel that has been previously
trained, follow these steps:
1. Turn the ignition switch to the ON/RUN position.2. Press and hold the desired HomeLinktbutton for 20
seconds until the EVIC display states ªCHANNEL #
TRAINING.ºDo not release the button.
3.Without releasing the button,proceed with PRO-
GRAMMING HOMELINK Step #2 and follow all remain-
ing steps.
Security
It is advised to erase all channels before you sell or turn
in your vehicle.
To do this, press and hold the two outside buttons for 20
seconds until the EVIC message states ªCHANNELS
CLEARED.º Note that all channels will be erased. Indi-
vidual channels cannot be erased.
The HomeLinktUniversal Transceiver is disabled when
the Vehicle Security Alarm is active.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 163
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NAM Reception.......................212
NFM Reception........................213
mSales Code REQ Ð AM/FM Stereo Radio And
6±Disc CD/DVD Changer (MP3/WMA AUX
Jack)................................213
NOperating Instructions - Radio Mode.......213
NOperation Instructions - (Disc Mode For CD
And MP3/WMA Audio Play, DVD-Video)....221
NNotes On Playing MP3/WMA Files........223
NList Button (Disc Mode For MP3/WMA
Play)..............................226
NInfo Button (Disc Mode For MP3/WMA
Play)..............................226
mSales Code RES Ð AM/FM Stereo Radio With
CD Player (MP3 AUX Jack)................228NOperating Instructions - Radio Mode.......228
NOperation Instructions - CD Mode For CD
And MP3 Audio Play..................234
NNotes On Playing MP3 Files.............236
NList Button (CD Mode For MP3 Play).......239
NInfo Button (CD Mode For MP3 Play).......239
mSales Code REN Ð Multimedia System Ð
If Equipped...........................241
NOperating Instructions Ð Satellite Radio
(If Equipped)........................241
NOperating Instructions Ð Hands-Free
Communication (UConnectŸ) (If Equipped) . . 242
NClock Setting Procedure.................242
mSales Code RER Ð AM/FM/CD/DVD Radio
With Navigation System Ð If Equipped.......244
182 UNDERSTANDING YOUR INSTRUMENT PANEL

NOperating Instructions Ð Satellite Radio.....244
NClock Setting Procedure.................244
mUniversal Consumer Interface (UCI) Ð
If Equipped...........................246
NConnecting The iPodt..................246
NControlling The iPodtUsing Radio Buttons . . . 246
NPlay Mode..........................247
NList Or Browse Mode..................249
mSatellite Radio (RSC) Ð If Equipped (REQ And
RES Radios Only)......................250
NSystem Activation.....................250
NElectronic Serial Number/Sirius Identification
Number (ENS/SID)....................251
NSelecting Satellite Mode.................251NSatellite Antenna......................251
NReception Quality.....................252
NOperating Instructions - Satellite Mode......252
NOperating Instructions - Hands Free Phone
(If Equipped)........................254
NOperating Instructions - Video Entertainment
System (VESt) (If Equipped).............254
mVideo Entertainment System (Sales Code XRV) Ð
If Equipped...........................254
mRemote Sound System Controls Ð If Equipped . . 256
NRadio Operation......................256
NCD Player..........................257
mCD/DVD Disc Maintenance...............257
mRadio Operation And Cellular Phones........258
UNDERSTANDING YOUR INSTRUMENT PANEL 183
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before engine start. If the bulb does not come on when
turning the key from OFF to ON, have the condition
checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc. may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations the vehicle will drive normally and will
not require towing.
The Malfunction Indicator Light flashes to alert you to
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced as soon as possible if this occurs.
6. Airbag Warning Light
This light turns on and remains on for 6 to 8
seconds as a bulb check when the ignition
switch is first turned ON. If the light is not onduring starting, stays on, or turns on while driving, have
the system inspected by an authorized dealer as soon as
possible.
7. Anti-Lock Brake Warning Light
This light monitors the Anti-Lock Brake System.
The light will turn on when the ignition switch is
turned to the ON position and may stay on for as long as
four seconds.
If the ABS light remains on or turns on while driving, it
indicates that the Anti-Lock portion of the brake system
is not functioning and that service is required. However,
the conventional brake system will continue to operate
normally if the BRAKE warning light is not on.
If the ABS light is on, the brake system should be serviced
as soon as possible to restore the benefits of Anti-Lock
brakes. If the ABS light does not turn on when the
Ignition switch is turned to the ON position, have the
light inspected by an authorized dealer.
UNDERSTANDING YOUR INSTRUMENT PANEL 189
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