Hi everyone. First time poster long time reader. 2006 Hummer H2. I was having a battery drain that just popped up out of nowhere. Basically the battery would drain over night from a full charge. Did some testing and detected there was a draw on the battery when everything was shutdown. Had a mechanic friend look it over and he narrowed it down to the powered seats. By pulling the 30 AMP aluminum breaker for the driver and passenger seat module from the fuse box under the left side of dash panel there was no longer a drain on the battery. Both seats work fine as far as adjusting them or using the heaters. My question is where do I go from here to resolve the problem? Thanks for any help in advance.

 

Welcome to HF. I moved your thread asking a question about your H2 to this section.................. where all questions about H2s go. Hopefully our H2 owner members can now help you out.

 

Sorry about that. Thank you.

 

Did you ever figure this out. I am dealing with the exact same issue. Have traced it to the drivers seat specifically. It will kill the battery in 4-5 hours if the seat harness is left plugged in. unlpug it and there is not drain on the battery

 

Thread is going on 3 years old.....

 

I messed around with the seat adjustment switches and the problem went away. Only thing I can think that was going on is one was sticking. Couldn't really hear anything like that but that was what I did and it worked. I hope it works for you. It was a real pain trying to get it fixed.