User Manual - Page 35

For 2018 JEEP GRAND CHEROKEE.

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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.
For vehicles equipped with Keyless Enter-N-Go
Ignition, always remember to place the ignition in
the OFF position.
NOTE: Duplication of key fobs may be performed at an
authorized 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.
When having the Sentry Key Immobilizer System serviced,
bring all vehicle keys with you to an authorized dealer.
Irregular Operation
The system uses a key fob, an Ignition Node Module,
Keyless Push Button Ignition and a RF receiver 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 not allow the engine to
crank if an invalid key fob is 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.
NOTE: A key fob that has not been programmed is also
considered an invalid key.
During normal operation, after placing the keyless ignition
in the ON/RUN mode, 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 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 seconds), 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.
3
GETTING TO KNOW YOUR VEHICLE 33
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