We have had our second H3 Hummer, 2008 for about 4-5 years. Just recently, we encountered starting issues. About a month ago, there was a 'click' at ignition. Okayyyy. But the second attempt to start the car, it clicked and was a no starter. We've had the battery replaced, and been researching, but the news is not good. It seems that if the car rests for a day, it will start again, but every time we use the car it's a crap shoot. Wondering if it's a design flaw or a Lemon law issue. No one seems to know what the problem is. Any ideas would give us some direction.

 

Welcome to HF. MOVED your post as just because you thought up an H3 question, does NOT make it an FAQ. Best to read first (like where it tells everyone to NOT post in the FAQ Section) before posting.

First thing to do to every H3/H3T is to replace the factory OEM Battery Terminal Connectors with a quality aftermarket set like Stingers or your favorite brand. Are you still trying to use the Crappy Azzed OEM Battery Connectors? If so, you know what to do now. If that does not correct your problem, let us know and we will continue to try to help.

Meanwhile, do some reading about GM Passlock.

 

Is there a specific document about PASSlock II that we can read? I am very interested in the subject of PASSlock II...thank you Doc Olds!