2010 JEEP GRAND CHEROKEE ECU

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
CONTENTS
A Word About Your Keys ................. 12
▫ Wireless Ignition Node (WIN) ............ 12
▫ KeyFOB ........................... 13
▫ Removing Key FOB From Ignition ......... 13
▫ Key-In-Ignition Reminder ............... 15
 Sentry Key .......................... 15
▫ Replacement Keys ..................... 16
▫ Customer Key Programming ............. 16
▫ General Information ................... 17 
Vehicle Security Alarm — If Equipped ........ 17
▫ Rearming The System .................. 17
▫ To Set The Alarm ..................... 17
▫ To Disarm The System ................. 18
 Illuminated Entry ...................... 18
 Remote Keyless Entry (RKE) .............. 19
▫ To Unlock The Doors .................. 19
▫ To Lock The Doors .................... 20
▫ To Release The Liftgate Flipper Glass ....... 21
2

Key-In-Ignition Reminder
Opening the driver’s door when the Key Fob is in the
ignition and the ignition switch position is OFF or ACC,
sounds a signal to remind you to remove the Key Fob.
NOTE:The Key-In-Ignition reminder only sounds
when the Key Fob is placed in the OFF or ACC ignition
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 Key Fob with Remote
Keyless Entry (RKE) transmitter and Wireless Ignition
Node (WIN) to prevent unauthorized vehicle operation.
Therefore, only Key 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 seconds if an
invalid Key Fob is used to start the engine.
After turning the ignition switch to the ON position, the
Vehicle Security Light will turn on for three 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 flash after the bulb check,
it indicates that someone used an invalid Key Fob to start
the engine. Either of these conditions will result in the
engine being shut off after two seconds.
If the Vehicle Security Light turns on during normal
vehicle operation (vehicle running for longer than 10 sec-
onds), it indicates that there is a fault in the electronics.
Should this occur, have the vehicle serviced as soon as
possible by an authorized dealer.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 15

NOTE:The 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.
All of the Key Fobs provided with your new vehicle have
been programmed to the vehicle electronics.
Replacement Keys
NOTE: Only Key Fobs that are programmed to the
vehicle electronics can be used to start and operate the
vehicle. Once a Key Fob is programmed to a vehicle, it
cannot be programmed to any other vehicle.
CAUTION!
Always remove the Key Fobs 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 Personal Identification Number (PIN).
Keep the PIN in a secure location. This number is
required for authorized dealer replacement of Key Fobs.
Duplication of Key Fobs may be performed at an autho-
rized dealer, this procedure consists of programming a
blank Key Fob to the vehicle electronics. A blank Key Fob
is one that has never been programmed.
NOTE:
When having the Sentry Key Immobilizer
system serviced, bring all vehicle Key Fobs with you to
the authorized dealer.
Customer Key Programming
Programming Key Fobs or RKE transmitters may be
performed at an authorized dealer.
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

General Information
The Sentry Keysystem complies with FCC rules Part 15
and with RSS-210 of Industry Canada. Operation is
subject to the following conditions:
•This device may not cause harmful interference.
•This device must accept any interference that may be
received, including interference that may cause undes-
ired operation.
VEHICLE SECURITY ALARM — IF EQUIPPED
This Vehicle Security Alarm monitors the vehicle doors,
liftgate, liftgate flipper glass, and ignition for unautho-
rized operation. When the alarm is activated, the Vehicle
Security Alarm provides both audio and visual signals.
The horn will sound, the headlights, park lamps and/or
turn signals will flash repeatedly for three minutes. If the
disturbance is still present (driver’s door, passenger door,
other doors, ignition) after three minutes, the headlights, park lamps and/or turn signals will flash for an addi-
tional 15 minutes.
NOTE:
The Panic and Security alarms are quite differ-
ent. Please take a moment to activate the Panic and the
Security modes to hear the differences in the horn. In case
one should go off in the future, you will need to know
which mode has been activated in order to deactivate it.
Rearming The System
If something triggers the alarm, and no action is taken to
disarm it, the Vehicle Security Alarm will turn off the
horn after three minutes, turn off all of the visual signals
after 15 minutes, and then the Vehicle Security Alarm will
rearm itself.
To Set the Alarm
The alarm will set when you use the Remote Keyless
Entry (RKE) 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, the
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 17

Vehicle Security Light (located in the instrument cluster)
will flash rapidly for about 16 seconds to signal that the
Vehicle Security Alarm is arming. During this 16 second
arming period, opening any door or the liftgate will
cancel the arming. If the Vehicle Security Alarm success-
fully arms, the Vehicle Security Light will flash at a
slower rate to indicate the alarm is set.
To Disarm the System
To disarm the Vehicle Security Alarm, you will need to
press the UNLOCK button on the RKE transmitter or
turn the ignition key to the ON position. If something has
triggered the Vehicle Security Alarm in your absence, the
horn will sound three times when you unlock the doors.
Check the vehicle for tampering.
The Vehicle Security Alarm is designed to protect your
vehicle; however, you can create conditions where the
Vehicle Security Alarm will arm unexpectedly. If you
remain in the vehicle and lock the doors with the RKEtransmitter, once the Vehicle Security Alarm is armed
(after 16 seconds), when you pull the door handle to exit,
the alarm will sound. If this occurs, press the UNLOCK
button on the RKE transmitter to disarm the Vehicle
Security Alarm. You may also accidentally disarm the
Vehicle Security Alarm by unlocking the driver’s door
with the key and then locking it. The door will be locked
but the Vehicle Security Alarm will not arm.ILLUMINATED ENTRY
The interior lights come on when you open any door or
use the Remote Keyless Entry (RKE) transmitter to un-
lock any door. They will remain on for approximately
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.
18 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

1. A weak battery in the RKE transmitter. The expected
life of the battery is a minimum of three years.
2. Closeness to a radio transmitter such as a radio station
tower, airport transmitter, and some mobile or CB radios.
REMOTE STARTING SYSTEM — IF EQUIPPED
This system uses the Remote Keyless Entry
(RKE) transmitter to start the engine conve-
niently from outside the vehicle while still
maintaining security. The system has a range of
approximately 328 ft (100 m).
NOTE: The vehicle must be equipped with an auto-
matic transmission to be equipped with Remote Start.
How to Use Remote Start
All of the following conditions must be met before the
engine will remote start:
•Shift lever in PARK
•Doors closed
•Hood closed
•Liftgate closed
•Hazard switch off
•Brake switch inactive (brake pedal not pressed)
•Ignition key removed from ignition switch
•Battery at an acceptable charge level
•RKE PANIC button not pressed
24 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
•Do not start or run an engine in a closed garage or
confined area. Exhaust gas contains Carbon Mon-
oxide (CO) which is odorless and colorless. Car-
bon Monoxide is poisonous and can cause serious
injury or death when inhaled.
•Keep Remote Keyless Entry (RKE) transmitters
away from children. Operation of the Remote Start
System, windows, door locks or other controls
could cause serious injury or death.
To Enter Remote Start Mode
Press and release the REMOTE START button
on the RKE transmitter twice, within five sec-
onds. The parking lights will flash and the horn
will chirp twice (if programmed). Then, the
engine will start and the vehicle will remain in the
Remote Start mode for a 15 minute cycle. NOTE:
•If an engine fault is present the vehicle will start and
then shut down 10 seconds later.
•The park lamps will turn on and remain on during
Remote Start mode.
•For security, power window and power sunroof op-
eration (if equipped) are disabled when the vehicle is
in the Remote Start mode.
•The engine can be started two consecutive times (two
15 minute cycles) with the RKE transmitter. However,
the ignition switch must be cycled to the ON position
before you can repeat the start sequence for a third
cycle.
To Exit Remote Start Mode Without Driving the
Vehicle
Press and release the REMOTE START button one time or
allow the engine to run for the entire 15 minute cycle.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 25

NOTE:To avoid unintentional shutdowns, the system
will disable the one time press of the REMOTE START
button for two seconds after receiving a valid Remote
Start request.
To Exit Remote Start Mode and Drive the Vehicle
Before the end of 15 minute cycle, press and release the
UNLOCK button on the RKE transmitter to unlock the
doors and disarm the Vehicle Security Alarm (if
equipped). Then, prior to the end of the 15 minute cycle,
insert the key into the ignition switch and turn the switch
to the ON position.
NOTE:
•The ignition switch must be in the ON position in
order to drive the vehicle.
•For vehicles equipped with the Electronic Vehicle
Information Center (EVIC), the message “Insert Key/
Turn To Run” will flash in the EVIC until you insert the key. Once inserted, the message “Turn To Run”
will flash in the EVIC until you turn the key to run.
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 key
is not inside the vehicle before closing the door.
WARNING!
•For 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.
(Continued)
26 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE