2015 JEEP CHEROKEE ECU

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
CONTENTS
!A WORD ABOUT YOUR KEYS.............12
▫Ignition Node Module (IGNM) — If Equipped. .12
▫Keyless Ignition Node (KIN)..............13
▫Key Fob — If Equipped..................14
▫Ignition Or Accessory On Message..........15
!SENTRY KEY®.........................16
▫Replacement Keys.....................18
▫Customer Key Programming..............18
▫General Information....................18
!VEHICLE SECURITY ALARM — IF EQUIPPED . . .19
▫Rearming Of The System.................19
▫To Arm The System....................19
▫To Disarm The System...................20
▫Security System Manual Override...........21
!ILLUMINATED ENTRY...................22
!REMOTE KEYLESS ENTRY (RKE)...........22
▫To Unlock The Doors And Liftgate..........24
▫To Lock The Doors And Liftgate............25
▫Using The Panic Alarm..................25
▫Programming Additional Transmitters.......26
2

The system uses a Key Fob with a factory-mated Remote
Keyless Entry (RKE) transmitter, a Keyless Ignition Node
(KIN) and a RF receiver to prevent unauthorized vehicle
operation. Therefore, only Key Fobs that are pro-
grammed to the vehicle can be used to start and operate
the vehicle. The system will not allow the engine to crank
if an invalid Key Fob.
After placing the ignition to the ON/RUN 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 system. 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
seconds), it indicates that there is a fault in the system.
Should this occur, have the vehicle serviced as soon as
possible by an authorized dealer.
CAUTION!
•Do not make modifications or alterations to the
immobilizer system. Modifications or alterations to
the immobilization system may result in a loss of
security protection.
•The Sentry Key® Immobilizer system is not com-
patible with some aftermarket remote starting sys-
tems. 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.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 17

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 unat-
tended.
•For vehicles equipped with Keyless Enter-N-Go™,
always remember to place the ignition in the OFF
position.
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 Sys-
tem serviced, bring all vehicle keys with you to an
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.
18 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•This device must accept any interference that may be
received, including interference that may cause unde-
sired operation.
NOTE:Changes or modifications not expressly approved
by the party responsible for compliance could void the
user’s authority to operate the equipment.
VEHICLE SECURITY ALARM — IF EQUIPPED
The Vehicle Security Alarm monitors the vehicle doors
for unauthorized entry and the Keyless Enter-N-Go™
Start/Stop button for unauthorized operation. While the
Vehicle Security Alarm is armed, interior switches for
door locks and liftgate release are disabled. If something
triggers the alarm, the Vehicle Security Alarm will pro-
vide the following audible and visible signals: the horn
will pulse, the park lamps and/or turn signals will flash,
and the Vehicle Security Light in the instrument cluster
will flash.
Rearming Of The System
If something triggers the alarm, and no action is taken to
disarm it, the Vehicle Security Alarm will turn the horn
off after 29 seconds, 5 seconds between cycles, up to 8
cycles if the trigger remains active and then the Vehicle
Security Alarm will rearm itself.
To Arm The System
Follow these steps to arm the Vehicle Security Alarm:
1. Make sure the vehicles ignition is cycled to the “OFF”
position (refer to#Starting Procedures#in#Starting
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 OFF
and the key is physically removed from the ignition.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 19

2. Perform one of the following methods to lock the
vehicle:
•Push LOCK on the interior power door lock switch
with the driver and/or passenger door open.
•Push 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-Go™#
in#Things To Know Before Starting Your Vehicle#for
further information).
•Push 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 with a
valid Key Fob available in the same exterior zone (if
equipped), refer to#Keyless Enter-N-Go™#in#Things
To Know Before Starting Your Vehicle#for further
information.
•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.
20 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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.
•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.
Security System Manual Override
The Vehicle Security Alarm will not arm if you lock the
doors using the manual door lock plunger.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 21

clip, located on the back cover. Avoid touching the
new battery with your fingers. Skin oils may cause
battery deterioration. If you touch a battery, clean it
with rubbing alcohol.
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 op-
eration.
NOTE:Changes or modifications not expressly approved
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 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).
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 29

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.
•The engine can be started two consecutive times with
the RKE transmitter. However, the ignition must be
cycled by pushing the START/STOP button twice (or
the ignition switch must be cycled to the ON/RUN
position) before you can repeat the start sequence for a
third cycle.
To Exit Remote Start Mode Without Driving The
Vehicle
Push and release the REMOTE START button one time or
allow the engine to run for the entire 15-minute cycle.
NOTE:To avoid unintentional shutdowns, the system
will disable the one time push 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, push 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,
push and release the START/STOP button. If the START/
STOP button is not present, insert the Key Fob into the
ignition switch and turn the switch to the ON/RUN
position.
32 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE