2008 JEEP COMPASS ECU

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
CONTENTS
mA Word About Your Keys..................12
NIgnition Key Removal...................12
NLocking Doors With The Key..............14
NKey-In-Ignition Reminder................14
mSteering Wheel Lock Ð Manual Transmission
Only.................................14
NTo Manually Lock The Steering Wheel.......14
NTo Release The Steering Wheel Lock.........14
mSentry Key............................15NReplacement Keys......................16
NCustomer Key Programming..............17
NGeneral Information....................18
mSecurity Alarm System Ð If Equipped.........18
NTo Set The Alarm......................18
NTo Disarm The System...................19
NSecurity System Manual Override...........19
mRemote Keyless Entry Ð If Equipped.........19
NTo Unlock The Doors And Liftgate..........20
2

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 ignition keys, which 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 (2)
seconds if someone uses an invalid key to start the
engine.
NOTE:A key, which 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 Alarm Indicator Light willturn 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 flash after the bulb check, it indicates that
someone used an invalid key to start the engine. Either of
these conditions 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 some after-market remote starting systems. Use
of these systems may result in vehicle starting prob-
lems and loss of security protection.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 15
2

²Exxon/Mobil Speed Pass,Ÿ additional Sentry Keys, or
any other transponder-equipped components on the
same key chain willnotcause a key-related (transpon-
der) fault unless the additional part isphysically held
against the ignition keybeing used when starting the
vehicle. Cell phones, pagers, or other RF electronics
will not cause interference with this system.
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 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
location. This number is required for dealer replacement
of keys. Duplication of keys may be performed at an
authorized dealer or by using the Customer Key Pro-
gramming procedure. This procedure consists of pro-
gramming a blank key to the vehicle electronics. A blank
key is one, which has never been programmed.
NOTE: When having the Sentry Key Immobilizer
System serviced, bring all vehicle keys with you to the
dealer.
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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 ªONº position for at least 3
seconds, but no longer than 15-seconds. Then, turn the
ignition switch to the ªLOCKº position and remove the
first key.
3. Insert the second valid key into the ignition switch.
Turn the ignition switch to the ªONº position within 15
seconds. After ten seconds, a chime will sound. In
addition, the Vehicle Security Alarm Indicator Light will
begin to flash. Turn the ignition switch to the ªLOCKº
position and remove the second key.4. Insert a blank Sentry Key into the ignition switch. Turn
the ignition switch to the ªONº position within 60
seconds. After 10 seconds, a single chime will sound. In
addition, the Vehicle Security Alarm Indicator Light will
stop flashing. To indicate that programming is complete,
the indicator light will 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.
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.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 17
2

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
The system monitors the doors, hood, liftgate, and igni-
tion switch for unauthorized operation.
If something triggers the alarm, the system will signal
with the horn for 30 seconds and the lights for 60
seconds. If the triggering device is not deactivated the
horn will sound again after a 5 second delay for another
30 seconds. If the trigger remains present this cycle will
repeat for up to 5 minutes.
To Set the Alarm
1. Remove the keys from the ignition switch and get out
of the vehicle.
2. Lock the door using either the power door lock switch,
or the Keyless Entry Transmitter and close all doors.
3. The indicator light in the instrument cluster will flash
rapidly for 16 seconds. This shows that the system is
arming. During this period, if a door is opened, the
ignition switch is turned ON, or the power door locks are
unlocked in any manner, the system will automatically
disarm. After 16 seconds the indicator light will flash
slowly. This shows that the system is fully armed.
18 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

To Disarm the System
1. Press UNLOCK on the Keyless Entry Transmitter.
2. Starting the vehicle with a valid Sentry key will
disarm the system. A valid key is one that is programmed
to that particular vehicle. A valid key will disarm the
system, an invalid key will allow the engine to run for 2
seconds and stop.
Security System Manual Override
The system will not arm if you lock the doors using the
manual door lock plunger.
REMOTE KEYLESS ENTRY Ð IF EQUIPPED
This system allows you to lock or unlock the doors and
liftgate or activate the panic alarm from distances a
maximum of 66 feet (20 meters) using a hand held radio
transmitter. The transmitter need not be pointed at the
vehicle to activate the system.NOTE:The line of transmission must not be blocked
with metal objects.
Three Button Transmitter
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 19
2

NOTE:Pressing the LOCK button on the keyfob while
you are inside the vehicle will activate the Security
Alarm. Opening a door with the Security Alarm activated
will cause the alarm to sound. Press the UNLOCK button
to deactivate the Security Alarm.
5. If the desired programming was not achieved or to
reactivate this feature, repeat the above steps.
To Lock the Doors and Liftgate
Press and release the LOCK button on the transmitter to
lock all doors. The turn signal lights will flash and the
horn will chip once to acknowledge the lock signal. If
desired, the ªSound Horn On Lockº feature can be
turned on or off. On electronic vehicle information center
(EVIC) equipped vehicles refer to ªPersonal Settingsº in
the ªElectronic Vehicle Information Center (EVIC)º sec-
tion of this manual. On non EVIC ± equipped vehicles
perform the following steps:
1. Press the LOCK button for 4 to 10 seconds.2. While the LOCK button is pressed (after 4 seconds),
press the PANIC button. Release both buttons.
The ªSound Horn On Lockº and ªFlash Lamps With
Lockº feature can be reactivated by repeating this proce-
dure.
Using The Panic Alarm
To turn the panic alarm feature ON or OFF, press and
hold the PANIC button on the transmitter for at least one
second and release. When the panic alarm is on, the
headlights and park lights will flash, the horn will pulse
on and off and the interior lights will turn on.
The panic alarm will stay on for 3 minutes unless you
turn it off by pressing the PANIC button a second time or
if the vehicle speed is 5 mph (8 km/h) or greater.
NOTE:When you turn off the panic alarm by pressing
the PANIC button a second time, you may have to be
closer to the vehicle due to the radio frequency noises of
the system.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 21
2

To Turn Off ªFlash Lights With Lockº
NOTE:The Flash Lights With Lock feature can be
turned on or off. On electronic vehicle information center
(EVIC) equipped vehicles refer to9Personal Settings9in
the EVIC section of this manual. On non EVIC - equipped
vehicles perform the following steps:
1. Press the UNLOCK button for 4 to 10 seconds.
2. While the UNLOCK button is pressed, (after 4 sec-
onds) press the LOCK button. Release both buttons.
3. Test the flash lamps with LOCK feature while outside
of the vehicle, by pressing the LOCK button on the key
fob with the ignition in the LOCK position, and the key
removed.
NOTE:Pressing the LOCK button on the key fob, while
you are in the vehicle, will activate the Security Alarm.Opening a door with the Security Alarm activated will
cause the alarm to sound. Press the UNLOCK button to
deactivate the Security Alarm.
The ªFlash Lights On Lock/Unlockº feature can be
reactivated by repeating this procedure.
Programming Additional Transmitters
Vehicles will be shipped from the assembly plants with
two key fob transmitters programmed only for that
vehicle. A total of eight fobs can be programmed for your
vehicle. Additional fobs can be programmed to your
vehicle through the use of a currently programmed fob.
NOTE:When entering program mode using that fob, all
other programmed fobs will be erased and you will have
to reprogram them for your vehicle.
22 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE