Testing The Alarm - Hummer 2008 H2 Owner's Manual

Remember, the theft-deterrent system will not activate if
you lock the doors with the vehicle's key or use the
manual door lock. It activates only if you use a power
door lock switch with the door open, or with the
RKE transmitter. You should also remember that you
can start your vehicle with the correct ignition 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 activate the theft-deterrent
system, the vehicle should be locked with the
door key after the doors are closed.
•
Always unlock a door with the RKE transmitter.
Unlocking a door any other way will set off the
alarm.
If you set off the alarm by accident, press unlock on the
RKE transmitter or place the key in the ignition and
turn it to START to turn it off. The alarm will not stop
if you try to unlock a door any other way.

Testing the Alarm

To test the alarm:
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 RKE 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 Instrument Panel Fuse Block on page 5-111 and
Underhood Fuse Block on page 5-113.
If the alarm does not sound or the headlamps do not
flash, the vehicle should be serviced by your
dealer/retailer.
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