We previously wrote about the TDS Rostra aftermarket alarm system used on Hummer H-1 vehicles from 2002-2006. The remote transmitter for this system is no longer made and getting very hard to find. (See earlier blog post here.)
Remotes Unlimited has only a few of these left. Once they are sold, we think it highly unlikely that we will be able to find more. So, if you need to buy a replacement remote keyfob for your 2002-2006 Hummer H1, you should probably do it soon.