I just called Hummer and they're saying that if me or someone manually opens/closes the doors without the key fab that would trigger the alarm...the on the truck thinking the truck has been stolen...therefore I shoud then lock the truck with the key fab, open it with the key fab, put the key in the ignition (on) and wait 30 minutes...that would reset the alarm and would allow me to drive the truck... yikes! because what would happen I would return to the truck and try to start it...all it would do it would just crank (try to start) but it'd never start!!! it was so frustrating.......
