Testing the Alarm :: Vehicle Security :: Keys, Doors, and Windows :: GMC Acadia Owners Manual :: GMC Acadia

Testing the Alarm

To test the alarm:

1. From inside the vehicle, lower the driver side window, and open the driver door.

2. Press 3. Get out of the vehicle, close the door, and wait for the security light to go out. .

3. Get out of the vehicle, close the door, and wait for the security light to go out.

4. Reach in through the window, unlock the door with the manual door lock, and open the door.

This should set off the alarm.

If the alarm does not sound when it should, but the headlamps flash, check to see if the horn works.

The horn fuse may be blown.

To replace the fuse, see Fuses and Circuit Breakers on page 10‑31.

If the alarm does not sound or the headlamps do not flash, see your dealer for service.