Immobilizer; Immobilizer Operation - Chevrolet Impala Owner's Manual

If the vehicle has Keyless
Access, unlock the vehicle using
the door handle lock/unlock
button with the RKE transmitter
within 1 m (3 ft) of the vehicle.
Start the engine.
The alarm automatically disarms.
How to Detect a Tamper
Condition
If is pressed and the horn
sounds, an attempted break-in
occurred while the system was
armed.
If the alarm has been activated, a
message will appear on the DIC.
See Security Messages on
page 5-37.

Immobilizer

See Radio Frequency Statement on
page 13-15.

Immobilizer Operation

(Key Access)
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the key is
removed from the ignition.
The system is automatically
disarmed when the vehicle is
started with the correct key. The key
uses a transponder that matches an
immobilizer control unit in the
vehicle and automatically disarms
the system. Only the correct key
starts the vehicle. The vehicle may
not start if the key is damaged.
Keys, Doors, and Windows
The security light in the instrument
cluster comes on if there is a
problem with arming or disarming
the theft-deterrent system.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged
or the light continues to stay on, try
another ignition key.
If the engine still does not start with
the other key, the vehicle needs
service. If the vehicle does start, the
first key may be damaged. See your
dealer who can service the
theft-deterrent system and have a
new key made.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.
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