2003 Hummer H2 Owner's Manual - Page 100
2003 Hummer H2 Manual
Page 100 highlights
Here's how to avoid setting off the alarm by accident: Testing the Alarm The alarm can be tested by following these steps: 1. From inside the vehicle, lower the driver's window and open the driver's door. 2. Activate the system by locking the doors with the power door lock switch while the door is open, or with the remote keyless entry transmitter. 3. Get out of the vehicle, close the door and wait for the security light to go out. 4. Then reach in through the window, unlock the door with the manual door lock and open the door. This should set off the alarm. While the alarm is set, the power door unlock switch is not operational. 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" in the Index. If the alarm does not sound or the headlamps do not flash, the vehicle should be serviced by your dealer. D If you don't want to activate the theft-deterrent system, the vehicle should be locked with the door key after the doors are closed. keyless entry transmitter. Unlocking a door any other way will set off the alarm. D Always unlock a door with a key, or use the remote If you set off the alarm by accident, unlock any door with the key. You can also turn off the alarm by pressing unlock on the remote keyless entry transmitter or by turning on the engine with the correct ignition key. The alarm won't stop if you try to unlock a door any other way. 2-18
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