immobilizer JEEP GRAND CHEROKEE 2008 WK / 3.G SRT Owners Manual

CAUTION!
An unlocked car is an invitation to thieves. Always
remove key from the ignition and lock all doors
when leaving the vehicle unattended.
Key-In-Ignition Reminder
If you open the driver's door and the key is in the
ignition, a chime will sound to remind you to remove the
key.
NOTE:The Key-In-Ignition reminder only sounds
when the ignition key is placed in the LOCK or ACC
position.
SENTRY KEY
The Sentry Key Immobilizer System prevents unautho-
rized vehicle operation by disabling the engine. The
system does not need to be armed or activated. Operation
is automatic, regardless of whether the vehicle is locked
or unlocked.
The system uses the factory-mated Fob with Integrated
Key and Wireless Ignition Node (WIN) to prevent unau-
thorized vehicle operation. Therefore, only Fobs that are
programmed to the vehicle can be used to start and
operate the vehicle. The system will shut the engine off in
two (2) seconds if someone uses an invalid Fob to start
the engine.
After turning the ignition switch to the ON position, the
Vehicle Security Alarm Indicator Light will turn on for
three (3) seconds for a bulb check. If the light remains on
after the bulb check, it indicates that there is a problem
with the electronics. In addition, if the light begins to
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 15
2

flash after the bulb check, it indicates that someone used
an invalid Fob to start the engine. Either of these condi-
tions will result in the engine being shut off after two (2)
seconds.
If the Vehicle Security Alarm Indicator Light turns on
during normal vehicle operation (vehicle running for
longer than 10 seconds), it indicates that there is a fault in
the electronics. Should this occur, have the vehicle ser-
viced as soon as possible.
NOTE:
²The Sentry Key Immobilizer System is not compatible
with aftermarket remote starting systems. Use of these
systems may result in vehicle starting problems and
loss of security protection.
²Exxon/Mobil Speed Pass,Ÿ additional Fobs, or any
other transponder-equipped components on the same
key chain willnotcause a fault unless the additional
part isphysically held against the Fobbeing used tostart the vehicle. Cell phones, pagers, or other RF
electronics will not cause interference with this system.
All of the Fobs provided with your new vehicle have
been programmed to the vehicle electronics.
Replacement Keys
NOTE:Only Fobs that are programmed to the vehicle
electronics can be used to start and operate the vehicle.
Once a Fob is programmed to a vehicle, it cannot be
programmed to any other vehicle.
CAUTION!
Always remove Sentry Keys from the vehicle and
lock all doors when leaving the vehicle unattended.
At the time of purchase, the original owner is provided
with a four-digit PIN number. Keep the PIN in a secure
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

location. This number is required for dealer replacement
of Fobs. Duplication of Fobs may be performed at an
authorized dealer or by using the Customer Key Pro-
gramming procedure. This procedure consists of pro-
gramming a blank Fob to the vehicle electronics. A blank
Fob is one, which has never been programmed.
NOTE: When having the Sentry Key Immobilizer
System serviced, bring all vehicle Fobs with you to the
dealer.
Customer Key (Fob) Programming
If you have two valid sentry keys, you can program new
sentry keys to the system by performing the following
procedure:
1. Insert the first valid key into the ignition switch and
turn the ignition switch ON for at least 3 seconds but no
longer than 15 seconds. Turn the ignition switch OFF and
remove the first key.2. Insert the second valid key and turn the ignition
switch ON within 15 seconds. After ten seconds, a chime
will sound and the Vehicle Security Alarm Indicator
Light will begin to flash. Turn the ignition switch OFF
and remove the second key.
3. Insert a blank Sentry Key into the ignition switch and
turn the ignition switch ON within 60 seconds. After 10
seconds, a single chime will sound and the Vehicle
Security Alarm Indicator Light will stop flashing, turn on
again for 3 seconds, and then turn off.
The new Sentry Key is programmed.The Keyless Entry
Transmitter will also be programmed during this pro-
cedure.
Repeat this procedure to program up to 8 keys. If you do
not have a programmed sentry key, contact your dealer
for details.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 17
2

Fuel................................ 181
Speedometer......................... 174
Tachometer.......................... 176
Gear Ranges........................... 248
General Information...............18,24,104,278
Glass Cleaning.......................... 337
Gross Axle Weight Rating.................. 286
Gross Vehicle Weight Rating................ 285
Hands-Free Phone (UConnectŸ).............. 77
Hard Drive (HDD)....................... 212
Hazard Warning Flasher................... 298
Head Restraints......................... 107
Head Rests............................ 107
Headlights..........................120,347
Bulb Replacement...................... 347
On With Wipers....................... 121
Replacing............................ 347
Heated Mirrors.......................... 77Heated Seats........................107,109
High Beam Indicator..................... 174
High Beam/Low Beam Select (Dimmer) Switch . . 124
Hitches
Trailer Towing........................ 289
Holder, Cup........................... 161
HomeLinkt(Garage Door Opener) Transmitter . . . 148
Hood Release.......................... 118
Hoses.............................329,332
Ignition............................... 14
Key ...............................12,14
Ignition Key Removal..................... 14
Illuminated Entry........................ 19
Immobilizer (Sentry Key)................... 15
Infant Restraint........................56,57
Inflation Pressure Tires.................... 269
Information Center, Vehicle................. 182
Instrument Cluster....................173,174
392 INDEX

Instrument Panel and Controls.............. 172
Instrument Panel Lens Cleaning............. 337
Integrated Power Module (Fuses)............ 344
Interior Appearance Care.................. 336
Interior Fuses.......................... 338
Interior Lighting........................ 125
Interior Lights.......................122,125
Intermittent Wipers (Delay Wipers)........... 127
Introduction............................. 4
Inverter, Power......................... 159
Jump Starting.......................... 300
Key, Programming........................ 17
Key, Replacement........................ 16
Key, Sentry (Immobilizer)................... 15
Key-In Reminder......................... 15
Keyless Entry System...................... 19
Keys................................. 12Lap/Shoulder Belts....................... 36
LATCH (Lower Anchors and Tether for
CHildren)............................60,61
Lead Free Gasoline...................... 278
Leaks, Fluid............................ 68
Life of Tires............................ 272
Liftgate................................ 32
Liftgate Flipper Glass...................... 33
Liftgate Window Wiper/Washer............. 167
Lights..............................68,119
Airbag............................53,175
Alarm............................... 67
Anti-Lock........................... 175
Automatic Headlights................... 120
Back-Up............................. 350
Battery Saver......................... 119
Brake Assist Warning.................141,180
Brake Warning........................ 174
Bulb Replacement...................... 347
INDEX 393
10

Child Restraint.......................56,63
Extender............................. 44
Front Seat............................ 36
Inspection............................ 67
Maintenance........................67,337
Pretensioners.......................... 42
Reminder............................ 180
Shoulder Belt Anchorage.................. 40
Seats................................. 104
Adjustment.......................... 104
Cleaning............................ 336
Easy Entry........................... 117
Head Restraints....................... 107
Heated...........................107,109
Lumbar Support....................... 106
Memory............................. 114
Power...........................106,107
Rear Folding.......................... 111
Reclining............................ 104Security Alarm (Theft Alarm).............18,176
Selection of Coolant (Antifreeze)............. 325
Selection of Oil......................... 313
Sentry Key (Immobilizer)................... 15
Sentry Key Programming................... 17
Sentry Key Replacement................... 16
Service Assistance....................... 376
Service Contract......................... 378
Service Engine Soon Light (Malfunction
Indicator)............................. 174
Service Manuals........................ 380
Setting the Clock..................198,213,215
Settings, Personal........................ 190
Shift Lock Manual Override................ 246
Shifting............................... 245
Automatic Transmission................. 245
Shoulder Belts........................... 36
Signals, Turn...................124,174,349,350
SmartBeams........................... 121
INDEX 399
10