2008 JEEP GRAND CHEROKEE ECU

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
CONTENTS
mA Word About Your Keys..................12
NWireless Ignition Node (WIN).............12
NFOB With Integrated Key (FOBIK)..........13
NIgnition Key Removal...................14
NKey-In-Ignition Reminder................15
mSentry Key............................15
NReplacement Keys......................16
NCustomer Key (FOB) Programming..........17
NGeneral Information....................18mSecurity Alarm System Ð If Equipped.........18
NTo Set The Alarm......................18
NTo Disarm The System...................19
mIlluminated Entry........................19
mRemote Keyless Entry.....................19
NTo Unlock The Doors...................20
NTo Lock The Doors.....................21
NTo Release The Liftgate Flipper Glass........22
NUsing The Panic Alarm..................22
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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
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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.
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NOTE:If a programmed key is lost, see your dealer to
have all remaining keys erased from the systems
memory. This will prevent the lost key from starting your
vehicle. The remaining keys must then be repro-
grammed. All vehicle keys must be taken to the dealer at
the time of service to be reprogrammed.
General Information
The Sentry Key system complies with FCC rules part 15
and with RSS-210 of Industry Canada. Operation is
subject to the following conditions:
²This device may not cause harmful interference.
²This device must accept any interference that may be
received, including interference that may cause undes-
ired operation.
SECURITY ALARM SYSTEM Ð IF EQUIPPED
This system monitors the vehicle doors, liftgate, liftgate
flipper glass, and ignition for unauthorized operation
and movement inside of the vehicle. When the alarm is
activated, the system provides both audible and visual
signals. The horn will sound repeatedly for three minutes
and the headlights and taillights will flash for an addi-
tional 15 minutes.
To Set the Alarm
The alarm will set when you use the remote keyless entry
transmitter to lock the doors and liftgate or when you use
the power door lock switch while the door is open. After
all the doors are locked and closed, a red light (located in
the instrument cluster) will flash rapidly for about 16
seconds to signal that the system is arming. During this
16 second pre-arm period, opening any door or the
liftgate will cancel the arming. If the system successfully
arms, the red light will flash at a slower rate to indicate
the alarm is set. A manual lock of the doors, either with
18 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

the door lock plunger located on the inside of the doors
or with the driver's door key lock cylinder, will not set
the alarm.
To Disarm the System
To disarm the system, use the remote keyless entry
transmitter. If something has triggered the system in your
absence, the horn will sound three times when you
unlock the doors. Check the vehicle for tampering.
The Security Alarm System is designed to protect your
vehicle; however, you can create conditions where the
system will arm unexpectedly. If you remain in the
vehicle and lock the doors with the transmitter, once the
system is armed (after 16 seconds), when you pull the
door handle to exit the alarm will sound. If this occurs,
press the ªUnlockº button on the remote keyless entry
transmitter to disarm the system. The Security Alarm
System will not disarm with a manual unlock, eitherthrough the lock plunger located on the inside of the
door, or through a key in the driver's door key cylinder.
ILLUMINATED ENTRY
The interior lights come on when you open any door.
They will remain on for about 30 seconds after all doors
are closed then fade to off.
The lights also will fade to off if you turn on the ignition
after you close all the doors.
REMOTE KEYLESS ENTRY
This system allows you to lock or unlock the doors,
liftgate, or activate the panic alarm from distances up to
about 23 feet (7 meters) using a hand held radio trans-
mitter. The transmitter need not be pointed at the vehicle
to activate the system.
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Remote start will also cancel if any of the following occur:
²If the engine stalls or RPM exceeds 2500
²Any engine warning lamps come on
²The hood is opened
²The hazard switch is pressed
²The transmission is moved out of P (Park).
²The brake pedal is pressed.
The vehicle can be started remotely up to a maximum of
two times. The vehicle is also allowed a maximum of one
failed start, where the remote start sequence was initiated
but the engine stopped cranking without starting. After
either of these conditions, or if the Vehicle Theft Alarm is
alarming, or if the PANIC button was pressed, the vehicle
must be reset by inserting a valid key into the ignition
and moving it to the ON position, then back to LOCK.
DOOR LOCKS
Manual Door Locks
Use the manual door lock plunger to lock the doors from
inside the vehicle. If the plunger is down when the door
is closed, the door will lock. Therefore, make sure the
keys are not inside the vehicle before closing the door.
WARNING!
²For personal security and safety in the event of an
accident, lock the vehicle doors when you drive as
well as when you park and leave the vehicle.
²When leaving the vehicle always remove the key
from the ignition lock, and lock your vehicle. Do
not leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause severe per-
sonal injuries and death.
26 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE:Do not use a clothing bar mounted to the coat
hooks in this vehicle. A clothing bar will impede the
proper performance of the window bags.
The front airbags have a multi stage inflator design. This
allows the airbag to have different rates of inflation that
are based on collision severity. Along with the seat belts,
front airbags work with the instrument panel knee bol-
sters to provide improved protection for the driver and
front passenger. Window bags also work with seat belts
to improve occupant protection.
The seat belts are designed to protect you in many types
of collisions. The front airbags deploy in moderate to
severe frontal collisions.
The window bag on the crash side of the vehicle is
triggered in moderate to severe side collisions. In certain
types of collisions, both the front and side airbags may be
triggered. But even in collisions where the airbags work,
you need the seat belts to keep you in the right position
for the airbags to protect you properly.Here are some simple steps you can take to minimize the
risk of harm from a deploying airbag.
1. Children 12 years and under should always ride
buckled up in a rear seat.
Infants in rear facing child restraints shouldNEVERride
in the front seat of a vehicle with a passenger airbag. An
airbag deployment could cause severe injury or death to
infants in that position.
Children that are not big enough to properly wear the
vehicle seat belt should be secured in the rear seat, in a
child restraint or belt-positioning booster seat. Older
children who do not use child restraints or belt-
positioning booster seats should ride properly buckled
up in the rear seat. Never allow children to slide the
shoulder belt behind them or under their arm.
If a child from 1 to 12 years old must ride in the front
passenger seat because the vehicle is crowded, move the
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