Testing the Alarm

To test the alarm:

1. Lower the driver window and open the driver door.

2. Press lock on the RKE transmitter.

3. 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 10‑47.

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

    See also:

    Overview
    GMC unveiled the all-new 2007 Yukon and Yukon Denali full-size SUVs Oct. 5. They are based on GM's all-new full-size SUV family, which features distinctive styling, spacious and refined interiors, ...

    Sensors
    The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the information to adjust the temperature, fan speed, recircu ...

    Torque Lock
    If you are parking on a hill and you do not shift your transmission into P (Park) properly, the weight of the vehicle may put too much force on the parking pawl in the transmission. You may find it di ...