2007 Hummer H3 Owner's Manual - Page 99

The system can only be activated using the remote keyless entry transmitter, or by OnStar®. See OnStar® System on page 129 for additional information. You should also remember that you can start your vehicle with the correct key if the alarm has been set off. Here is how to avoid setting off the alarm by accident: • If you do not want to arm the theft-deterrent system, the vehicle should be locked with the manual door lock lever, the power door lock switch, or the key, after the doors are closed. • If the content theft-deterrent system is armed, unlock the doors by pressing the unlock button on the remote keyless entry transmitter or by OnStar®. Unlocking a door any other way will activate the alarm. If you set off the alarm by accident, you can turn it off by pressing unlock on the remote keyless entry transmitter, starting the vehicle with the correct key, or by having OnStar® unlock the doors. The alarm will not stop if you try to unlock a door any other way. Testing the Alarm The alarm can be tested by following these steps: 1. From inside the vehicle, activate the system by locking the doors with the remote keyless entry transmitter. 2. Unlock the door with the manual door lock and open the door. This should set off the pre-alarm. Wait 10 seconds for the full alarm to activate. 3. To turn the alarm off, press the unlock button on the remote keyless entry transmitter or start the engine. If the alarm does not sound when it should but the lights 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 417. If the alarm does not sound or the front turn signal lamps do not flash, see your dealer for service. 99