2012 JEEP WRANGLER ECU

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
CONTENTS
A Word About Your Keys ................. 14
▫ Ignition Key Removal .................. 14
▫ Key-In-Ignition Reminder ............... 15
 Sentry Key .......................... 16
▫ Replacement Keys ..................... 17
▫ Customer Key Programming ............. 17
▫ General Information ................... 18
 Vehicle Security Alarm — If Equipped ........ 19
▫ Rearming The System .................. 19 ▫
To Arm The System ................... 19
▫ To Disarm The System ................. 20
 Illuminated Entry — If Equipped ........... 20
 Remote Keyless Entry (RKE) — If Equipped . . . 21
▫ To Unlock The Doors And Swing Gate ...... 21
▫ Remote Key Unlock On First Press ......... 22
▫ To Lock The Doors And Swing Gate ........ 23
▫ Sound Horn On Lock .................. 23
▫ Using The Panic Alarm ................. 23
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SENTRY KEY
The Sentry KeyImmobilizer System prevents unauthor-
ized 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 ignition keys that have an embedded
electronic chip (transponder) to prevent unauthorized
vehicle operation. Therefore, only keys that are pro-
grammed to the vehicle can be used to start and operate
the vehicle. The system will shut the engine off in two
seconds if someone uses an invalid key to try to start the
engine.
NOTE: A key that has not been programmed is also
considered an invalid key, even if it is cut to fit the
ignition switch lock cylinder for that vehicle.
During normal operation, after turning on the ignition
switch, 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 Vehicle Security Light
begins to flash after the bulb check, it indicates that
someone used an invalid key to try 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 Key
Immobilizer 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.
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

All of the keys provided with your new vehicle have
been programmed to the vehicle electronics.
Replacement Keys
NOTE:Only keys that are programmed to the vehicle
electronics can be used to start and operate the vehicle.
Once a Sentry Key is programmed to a vehicle, it cannot
be programmed to any other vehicle.
CAUTION!
Always remove the Sentry Keys from the vehicle
and lock all doors when leaving the vehicle unat-
tended.
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 keys. Du-
plication of keys may be performed at an authorized dealer or by following the customer key programming
procedure. This procedure consists of programming a
blank key to the vehicle electronics. A blank key is one
that has never been programmed.
NOTE:
When having the Sentry Key Immobilizer
System serviced, bring all vehicle keys with you to an
authorized dealer.
Customer Key Programming
If you have two valid Sentry Keys , you can program
new Sentry Keys to the system by performing the
following procedure:
1. Cut the additional Sentry Key Transponder blank(s)
to match the ignition switch lock cylinder key code.
2. Insert the first valid key into the ignition switch. Turn
the ignition switch to the ON/RUN position for at least
three seconds, but no longer than 15 seconds. Then, turn
the ignition switch to the LOCK position and remove the
first key.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 17

3. Insert the second valid key into the ignition switch.
Turn the ignition switch to the ON/RUN position within
15 seconds. After 10 seconds, a chime will sound. In
addition, the Vehicle Security Light will begin to flash.
Turn the ignition switch to the LOCK position and
remove the second key.
4. Insert a blank Sentry Keyinto the ignition switch.
Turn the ignition switch to the ON/RUN position within
60 seconds. After 10 seconds, a single chime will sound.
In addition, the Vehicle Security Light will stop flashing.
To indicate that programming is complete, the Vehicle
Security Light will turn on again for three seconds and
then turn off.
The new Sentry Key is programmed.The Remote
Keyless Entry (RKE) transmitter will also be pro-
grammed during this procedure. Repeat this procedure to program up to eight keys. If you
do not have a programmed Sentry Key, contact your
authorized dealer for details.
NOTE:
If a programmed key is lost, see your authorized
dealer to have all remaining keys erased from the sys-
tem’s memory. This will prevent the lost key from
starting your vehicle. The remaining keys must then be
reprogrammed. All vehicle keys must be taken to an
authorized 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:
•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.
18 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

VEHICLE SECURITY ALARM — IF EQUIPPED
The Vehicle Security Alarm monitors the vehicle doors,
swing gate, and ignition for unauthorized operation.
While the Vehicle Security Alarm is armed, interior
switches for door locks are disabled. The Vehicle Security
Alarm provides both audible and visible signals when
alarming. The horn will sound, the headlights will turn
on, the park lamps and/or turn signals will flash repeat-
edly 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 minutes.
NOTE:The Panic Alarm and the Vehicle Security Alarm
are quite different. Please take a moment to activate the
Panic Alarm and the Vehicle Security Alarm 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
The Vehicle Security Alarm will set when you use the
Remote Keyless Entry (RKE) transmitter to lock the doors
and swing gate, or when you use the power door lock
switch while the door is open. After all the doors are
locked and closed, the Vehicle Security Light (located on
the instrument cluster) will flash rapidly for about 16 sec-
onds to signal that the Vehicle Security Alarm is arming.
During this 16-second arming period, opening any door
or the swing gate will cancel the arming. If the Vehicle
Security Alarm is successfully set, the Vehicle Security
Light will flash at a slower rate to indicate the Vehicle
Security Alarm is armed.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 19

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 switch to the ON/RUN position. 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.
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 RKE
transmitter, 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 doorwith the key and then locking it. The door will be locked
but the Vehicle Security Alarm will not arm.
NOTE:
•Unlocking the doors with the manual door lock plung-
ers or the driver’s door lock cylinder will not disarm
the Vehicle Security Alarm.
•When the Vehicle Security Alarm is armed, the interior
power door lock switches will not unlock the doors.
ILLUMINATED ENTRY — IF EQUIPPED
The courtesy lights will turn on when you use the
Remote Keyless Entry (RKE) transmitter to unlock the
doors or open any door.
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.
20 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

UNLOCK button is pressed, the Illuminated Entry will
initiate and the parking lights will flash twice.
Remote Key Unlock On First Press
This feature lets you program the system to unlock either
the driver’s side, or all doors and swing gate on the first
press of the UNLOCK button on the RKE transmitter.
•For vehicles equipped with an Electronic Vehicle In-
formation Center (EVIC), refer to “Electronic Vehicle
Information Center (EVIC)/Personal Settings
(Customer-Programmable Features)” in “Understand-
ing Your Instrument Panel” for further information.
•For vehicles not equipped with the EVIC, the Remote
Unlock feature can be enabled or disabled by perform-
ing the following steps:
1. Press and hold the LOCK button on a programmed
RKE transmitter. 2. Continue to hold the RKE transmitter LOCK button
for at least four seconds, but not longer than 10 seconds,
then press and hold the RKE transmitter UNLOCK
button.
3. Release both buttons at the same time.
4. Test this feature while outside of the vehicle by
pressing the LOCK/UNLOCK button on the RKE trans-
mitter.
NOTE:
Pressing the RKE transmitter LOCK button
while you are inside of the vehicle will activate the
Vehicle Security Alarm. Opening a door with the Vehicle
Security Alarm activated will cause the alarm to sound.
Press the RKE transmitter UNLOCK button to deactivate
the Vehicle Security Alarm.
5. If the desired programming was not achieved or to
reactivate this feature, repeat the above steps.
22 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE:Pressing the LOCK button on the RKE transmit-
ter while you are inside the vehicle will activate the
Vehicle Security Alarm. Opening a door with the Vehicle
Security Alarm activated will cause the alarm to sound.
Press the UNLOCK button to deactivate the Vehicle
Security Alarm.
To Lock The Doors And Swing Gate
Press and release the LOCK button on the RKE transmit-
ter to lock all doors. The turn signals will flash and the
horn will chirp once to acknowledge the lock signal.
Sound Horn On Lock
This feature will cause the horn to chirp when the doors
are locked with the RKE transmitter. This feature can be
turned on or turned off. To change the current setting,
proceed as follows:
•For vehicles equipped with the EVIC, refer to “Elec-
tronic Vehicle Information Center (EVIC)/Personal Settings (Customer-Programmable Features)” in “Un-
derstanding Your Instrument Panel” for further infor-
mation.
•For vehicles not equipped with the EVIC, perform the
following steps:
1. Press the RKE transmitter LOCK button for 4 to
10 seconds.
2. While the LOCK button is pressed (after four seconds),
press the RKE transmitter PANIC button. Release both
buttons.
The “Sound Horn On Lock” feature can be reactivated by
repeating this procedure.
Using The Panic Alarm
To turn the Panic Alarm feature on or off, press and hold
the PANIC button on the RKE transmitter for at least one
second and release. When the Panic Alarm is activated,
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 23