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 an authorized key starts the vehicle. The vehicle may not start if the key is damaged.

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 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.
Vehicle Alarm System
Exterior MirrorsTest Probe Caution
Caution: Do not insert test equipment probes (DMM etc.) into any
connector or fuse block terminal. The diameter of the test probes will
deform most terminals. A deformed terminal will cause a poor connection, which
will result in a system failure. Always use the EL-35616
GM-Approved Terminal T ...
Instrument Panel Upper Trim Pad Insert Replacement
Preliminary Procedure
Remove the instrument panel. Refer to Instrument Panel Assembly Replacement.
Instrument Panel Upper Trim Pad Insert Screw (Qty: 6)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2.5 N·m (22 lb in)
Instrument Panel Upper Trim Pad Insert Asse ...
Hood Primary and Secondary Latch Replacement
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia
Replacement.
Remove the radiator grille support reinforcement. Refer to Radiator
Grille Reinforcement Support Replacement.
Hood Primary and Secondary Latch Retainer Bolt (Qty: 2)
Caution: ...