2008 JEEP GRAND CHEROKEE radio controls

Ignition Key Removal
Place the selector lever in ªPº (Park). Turn the key to the
LOCK position, and remove the key.
NOTE:
²If you try to remove the key before you place the
selector lever in ªPº (Park), it may become trapped
temporarily in the ignition switch. If this occurs, rotate
the key to the right slightly, then remove the key as
described. If a malfunction occurs, the system will trap
the key in the ignition switch to warn you that this
safety feature is inoperable. The engine can be started
and stopped, but the key cannot be removed until you
obtain service.
²For vehicles equipped with the Electronic Vehicle
Information Center (EVIC), the power window
switches, radio, power sunroof (if equipped), and
power outlets will remain active for up to 60 minutesafter the ignition switch is turned to the LOCK posi-
tion. Opening either front door will cancel this feature.
The time for this feature is programmable. For details,
refer to ªDelay Power Off to Accessories Until Exit,º
under ªPersonal Settings (Customer Programmable
Features),º under ªElectronic Vehicle Information
Center (EVIC)º in Section 4 of this manual.
WARNING!
Never leave children alone in a vehicle. Leaving
children in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri-
ously or fatally injured. Don't leave the keys in the
ignition. A child could operate power windows,
other controls, or move the vehicle.
14 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

UNDERSTANDING YOUR INSTRUMENT PANEL
CONTENTS
mInstrument Panel And Controls.............172
mInstrument Cluster......................173
mInstrument Cluster Description.............174
mElectronic Vehicle Information Center (EVIC) . . . 182
NElectronic Vehicle Information Center (EVIC)
Displays............................183
NTrip Functions.......................186
NCompass Display.....................188
NPersonal Settings (Customer Programmable
Features)...........................190NSystem Status........................194
mRadio General Information................195
NRadio Broadcast Signals.................195
NTwo Types Of Signals..................196
NElectrical Disturbances..................196
NAM Reception.......................196
NFM Reception........................196
mSales Code REQ Ð AM/FM Stereo Radio And
6±Disc CD/DVD Changer (MP3/WMA AUX
Jack)................................1964

NElectronic Serial Number/Sirius Identification
Number (ENS/SID)....................222
NSelecting Satellite Mode.................222
NSatellite Antenna......................222
NReception Quality.....................223
NOperating Instructions - Satellite Mode......223
NOperating Instructions - Hands Free Phone
(If Equipped)........................225
NOperating Instructions - Video Entertainment
System (VESŸ) (If Equipped).............225
mVideo Entertainment System (Sales Code XRV) Ð
If Equipped...........................225mRemote Sound System Controls Ð If Equipped . . 227
NRadio Operation......................228
NCD Player..........................228
mCD/DVD Disc Maintenance...............228
mRadio Operation And Cellular Phones........229
mClimate Controls.......................229
NAutomatic Temperature Control...........229
NOperating Tips.......................236
UNDERSTANDING YOUR INSTRUMENT PANEL 171
4

INSTRUMENT PANEL AND CONTROLS
1 Ð Air Outlet 5 Ð Upper Switch Bank 9 Ð Lower Switch Bank
2 Ð Instrument Cluster 6 Ð Power Outlet/Cigar Lighter 10 Ð Climate Controls
3 Ð Radio 7 Ð Storage Bin 11 Ð Ignition Switch
4 Ð Glove Box 8 Ð Power Outlet 12 Ð Storage Bin 172 UNDERSTANDING YOUR INSTRUMENT PANEL

Two Types of Signals
There are two basic types of radio signals... AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary... and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
Electrical Disturbances
Radio waves may pick up electrical disturbances during
transmission. They mainly affect the wave amplitude,
and thus remain a part of the AM reception. They
interfere very little with the frequency variations that
carry the FM signal.
AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio.
NOTE:The radio, steering wheel radio controls (if
equipped), and 6 disc CD/DVD changer (if equipped)
will remain active for up to 10 minutes after the ignition
switch has been turned off. Opening a vehicle front door
will cancel this feature.
SALES CODE REQ Ð AM/FM STEREO RADIO
AND 6±DISC CD/DVD CHANGER (MP3/WMA AUX
JACK)
NOTE:The radio sales code is located on the lower right
side of your radio faceplate.
196 UNDERSTANDING YOUR INSTRUMENT PANEL

REMOTE SOUND SYSTEM CONTROLS Ð IF
EQUIPPED
The remote sound system controls are located on the rear
surface of the steering wheel. Reach behind the wheel to
access the switches.The right hand control is a rocker type switch with a
push-button in the center and controls the volume and
mode of the sound system. Pressing the top of the rocker
switch will increase the volume and pressing the bottom
of the rocker switch will decrease the volume.
Pressing the center button will make the radio switch
between the various modes available (AM/FM/TAPE/
CD, Etc.).
The left hand control is a rocker type switch with a
push-button in the center. The function of the left hand
control is different depending on which mode you are in.
The following describes the left hand control operation in
each mode.
UNDERSTANDING YOUR INSTRUMENT PANEL 227
4

RADIO OPERATION AND CELLULAR PHONES
Under certain conditions, the cellular phone being On in
your vehicle can cause erratic or noisy performance from
your radio. This condition may be lessened or eliminated
by relocating the cellular phone antenna. This condition
is not harmful to the radio. If your radio performance
does not satisfactorily ªclearº by the repositioning of the
antenna, it is recommended that the radio volume be
turned down or off during cellular phone operation.
CLIMATE CONTROLS
Automatic Temperature Control
The Infrared Dual-Zone Climate Control System auto-
matically maintains the interior comfort level desired by
the driver and passenger. This is accomplished by a dual
sun-sensor in the top of the instrument panel, and an
infrared sensor located in the face of the control unit.
There are also various sensors monitored by this system
which take account for vehicle speed, A/C pressure,outside temperature, and engine cooling temperature.
The infrared sensor independently measures the surface
temperature of the driver and passenger. Based on the
sensor input, the system automatically adjusts the air
flow temperature, the air flow volume, and amount of
outside air recirculation. This maintains a comfortable
temperature even under changing conditions.
Automatic Temperature Controls
UNDERSTANDING YOUR INSTRUMENT PANEL 229
4

Rear Seat, Folding....................... 111
Rear Window Defroster................... 168
Rear Window Features.................... 167
Rear Wiper/Washer...................... 167
Reclining Front Seats..................... 104
Recorder, Event Data...................... 54
Recreational Towing...................... 296
Reformulated Gasoline.................... 279
Refrigerant............................ 320
Reminder, Lights On..................... 123
Reminder, Seat Belt....................... 42
Remote Keyless Entry (RKE)................. 19
Remote Sound System (Radio) Controls........ 227
Remote Starting System.................... 24
Replacement Bulbs....................... 346
Replacement Keys........................ 16
Replacement Tires....................... 273
Reporting Safety Defects................... 379
Restraints, Child......................... 56Restraints, Occupant...................... 34
Retractable Cargo Area Cover............... 163
Rocking Vehicle When Stuck................ 249
Roll Over Warning........................ 4
Rotation, Tires.......................... 275
Safety Checks Inside Vehicle................. 67
Safety Checks Outside Vehicle............... 68
Safety Defects, Reporting.................. 379
Safety Information, Tire................... 259
Safety Tips............................. 66
Satellite Radio..................212,213,215,221
Satellite Radio Antenna................... 222
Schedule, Maintenance.................... 356
Seat Belt Maintenance..................... 67
Seat Belt Reminder....................... 42
Seat Belts.............................. 36
Adjustable Upper Shoulder Anchorage........ 40
And Pregnant Women................... 44
398 INDEX