2006 H3 factory alarm
 

How do you know if your alarm went off? I heard a car horn today and it sounded like it might have been my hummer but I looked out the window and did not see anything near my hummer is there an indication the alarm went off? I'd like to know if it was actually my hummer. Thanks to any replies.

No replies huh? Well I came out and car looked fine no indication that it was my alarm. Just wish I had some kind of indication if it did go off like some of them that beep a certain way etc... Anyhow carry on and thanks for at least reading.

I did read it hut don't have a clue. mine has an alarm of some kind but i thought it used and don't even know how to set it off or even use the panic button... so sorry for not knowing any tricks.
But you could check the manufacturer of your alarm. mine has a sticker on the windows saying what kind of alarm it is. look them up an if there isn't any info on their site just send them an email i guess. hope this helps.