2012 JEEP GRAND CHEROKEE ECU

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
CONTENTS
A Word About Your Keys ................. 14
▫ Wireless Ignition Node (WIN) ............ 14
▫ KeyFob ............................ 15
▫ Removing Key Fob From Ignition .......... 16
▫ Key-In-Ignition Reminder ............... 18
 Sentry Key .......................... 18
▫ Replacement Keys ..................... 19
▫ Customer Key Programming ............. 20
▫ General Information ................... 20 
Vehicle Security Alarm — If Equipped ........ 20
▫ Rearming The System .................. 21
▫ To Arm The System ................... 21
▫ To Disarm The System ................. 22
▫ Tamper Alert ........................ 23
 Illuminated Entry ...................... 23
 Remote Keyless Entry (RKE) .............. 24
▫ To Unlock The Doors .................. 25
▫ To Lock The Doors .................... 26
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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/RUN posi-
tion, 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.CAUTION!
The Sentry KeyImmobilizer system is not compat-
ible with some after-market 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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 19

CAUTION!
•Always remove the Key Fobs from the vehicle and
lock all doors when leaving the vehicle unat-
tended.
•With Keyless Enter-N-Go, always remember to
place the ignition in OFF.
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.
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:
•This device may not cause harmful interference.
•This device must accept any interference that may be
received, including interference that may cause unde-
sired operation.
VEHICLE SECURITY ALARM — IF EQUIPPED
This Vehicle Security Alarm monitors the vehicle doors,
liftgate, liftgate flipper glass, and ignition for unauthor-
ized operation. When the alarm is activated, the interior
switches for door locks, power liftgate and flipper glass
are disabled. The Vehicle Security Alarm provides both
20 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

audio and visual signals, the horn will sound, the head-
lights will turn on, 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 additional 15 min-
utes.
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 Arm The System
Follow these steps to arm the Vehicle Security Alarm:
1. Remove the key from the ignition system (refer to
Starting Procedures inStarting And Operating for
further information).
• For vehicles equipped with Keyless Enter-N-Go, make
sure the vehicle ignition system is OFF.
• For vehicles not equipped with Keyless Enter-N-Go,
make sure the vehicle ignition system is OFFand the
key is physically removed from the ignition.
2. Perform one of the following methods to lock the
vehicle:
• Press LOCK on the interior power door lock switch
with the driver and/or passenger door open.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 21

•Press the LOCK button on the exterior Passive Entry
Door Handle with a valid Key Fob available in the same
exterior zone (refer to Keyless Enter-N-GoinThings To
Know Before Starting Your Vehicle for further informa-
tion).
• Press the LOCK button on the Remote Keyless Entry
(RKE) transmitter.
3. If any doors are open, close them.
To Disarm The System
The Vehicle Security Alarm can be disarmed using any of
the following methods:
•Press the UNLOCK button on the Remote Keyless
Entry (RKE) transmitter.
•Grasp the Passive Entry Unlock Door Handle (if
equipped, refer to Keyless Enter-N-Go inThings To
Know Before Starting Your Vehicle for further infor-
mation).
•Cycle the vehicle ignition system out of the OFF
position.
•For vehicles equipped with Keyless Enter-N-Go,
press the Keyless Enter-N-Go Start/Stop button
(requires at least one valid Key Fob in the vehicle).
•For vehicles not equipped with Keyless Enter-N-Go,
insert a valid key into the ignition switch and turn
the key to the ON position.
NOTE:
•The driver’s door key cylinder and the liftgate button
on the RKE transmitter cannot arm or disarm the
Vehicle Security Alarm.
•The Vehicle Security Alarm remains armed during
power liftgate entry. Pressing the liftgate button will
not disarm the Vehicle Security Alarm. If someone
enters the vehicle through the liftgate and opens any
door the alarm will sound.
22 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•When the Vehicle Security Alarm is armed, the interior
power door lock switches will not unlock the doors.
The Vehicle Security Alarm is designed to protect your
vehicle; however, you can create conditions where the
system will give you a false alarm. If one of the previ-
ously described arming sequences has occurred, the
Vehicle Security Alarm will arm regardless of whether
you are in the vehicle or not. If you remain in the vehicle
and open a door, the alarm will sound. If this occurs,
disarm the Vehicle Security Alarm.
If the Vehicle Security Alarm is armed and the battery
becomes disconnected, the Vehicle Security Alarm will
remain armed when the battery is reconnected; the
exterior lights will flash, the horn will sound. If this
occurs, disarm the Vehicle Security Alarm.Tamper Alert
If something has triggered the Vehicle Security Alarm in
your absence, the horn will sound three times and the
exterior lights blink three times when you unlock the
doors. Check the vehicle for tampering.
ILLUMINATED ENTRY
The courtesy lights will turn on when you use the
Remote Keyless Entry (RKE) transmitter to unlock the
doors or open any door.
This feature also turns on the approach lighting in the
outside mirrors (if equipped). Refer to “Mirrors” in
“Understanding The Features Of Your Vehicle” for fur-
ther information.
The lights will fade to off after approximately 30 seconds
or they will immediately fade to off once the ignition
switch is turned to ON/RUN from the OFF position.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 23

4. To assemble the RKE transmitter case, snap the two
halves together.
General Information
This device complies with part 15 of the FCC rules and
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 received,
including interference that may cause undesired
operation.
NOTE: Changes or modifications not expressly ap-
proved by the party responsible for compliance could
void the user’s authority to operate the equipment. If your RKE transmitter fails to operate from a normal
distance, check for these two conditions:
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 300 ft (91 m).
NOTE:
•The vehicle must be equipped with an automatic
transmission to be equipped with Remote Start.
•Obstructions between the vehicle and RKE transmitter
may reduce this range.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 29

Remote Start Abort Message On Electronic Vehicle
Information Center (EVIC) — If Equipped
The following messages will display in the EVIC if the
vehicle fails to remote start or exits remote start prema-
turely:
•Remote Start Aborted — Door Ajar
•Remote Start Aborted — Hood Ajar
•Remote Start Aborted — Fuel Low
•Remote Start Aborted — Liftgate Ajar
•Remote Start Disabled — Start Vehicle To Reset
The EVIC message stays active until the ignition is turned
to the ON/RUN position.
To Enter Remote Start Mode
Press and release the REMOTE START button
on the RKE transmitter twice within five sec-
onds. The vehicle doors will lock, 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 or fuel level is low, the
vehicle will start and then shut down in 10 seconds.
•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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 31