Servis TPS?
 

this light just came on when I was driving home just now. i think its the tire monitor system but i gotta look in the book. anyone got this warning yet?

RE: Servis TPS?
 

i think every hummer owner has got this atleast once. if u cant get it to go away u will need to go to the dealer to have it reset. hopefully u need some air and that will correct it.

Have you tried the little reset procedure? The one where you turn the key to "on", then turn the park lights on and off 3 times really fast, then hurry and let air out of your drivers side front tire until the horn honks, then the passenger front tire until it honks, then the passenger rear tire until it honks, then the drivers rear tire until it honks?? I think those are the steps to reset the TPS system. You might want to look it up in your manual just to be sure.

My TPS light would only come on when I would drive for more than 30 miles or so. Following the steps above solved my problem, haven't had it come back since!