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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 01-07-2007, 03:34 PM
Kendog Kendog is offline
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Default Heated seats turning on by themselves

Hi, all. New 2003 H2 owner here. Bought it about three weeks ago. Everything's perfect about it, except this: All of a sudden the heated driver side seats like to turn on by themselves. I can turn them off, but within anywhere from 1 to 10 seconds they'll turn on again. This continues until I turn the car off.

Any ideas? I can't think of anything that I might have done to cause this, and DAMN my buttocks are hot!

Thanks,

Ken
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  #2  
Old 01-07-2007, 03:49 PM
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Default Re: Heated seats turning on by themselves

That bites, dont know whats causing it . But mine wont stay on for longer than 10 seconds. So i am also interested to hear any info on there workings.
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  #3  
Old 01-07-2007, 04:30 PM
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Default Re: Heated seats turning on by themselves

Just a suggestion:
Remove the switch assembly (make sure to tape the wires) and see if the seats now stay off. Drive it around a bit. If yes, probably a switch assembly. If no, could be the driver's door module or memory seat module.
I would guess one of the modules went bad, but there could be a bad connection in the switch.
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  #4  
Old 01-07-2007, 09:51 PM
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Default Re: Heated seats turning on by themselves

You may have hemroid flare up. Go see a doctor!
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  #5  
Old 01-08-2007, 05:20 AM
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Default Re: Heated seats turning on by themselves

I was thinking cold ghosts...
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Old 01-08-2007, 12:44 PM
Kendog Kendog is offline
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Default Re: Heated seats turning on by themselves

Quote:
Originally Posted by Alan06SUT
You may have hemroid flare up. Go see a doctor!

Wow! The H2 actually has a sensor for that? I knew something felt funny, but I thought I just needed to get used to the new seats. This car has EVERYTHING!

Ken
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  #7  
Old 01-09-2007, 12:35 AM
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Default Re: Heated seats turning on by themselves

Quote:
Originally Posted by Kendog
Wow! The H2 actually has a sensor for that? I knew something felt funny, but I thought I just needed to get used to the new seats. This car has EVERYTHING!

Ken
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Old 01-09-2007, 04:04 PM
Kendog Kendog is offline
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Default Re: Heated seats turning on by themselves

Hmmm... Today the plot thickened. Sometimes, but not always, the aberrant heated seat behavior ceases completely if I turn off the heater.

In addition, I found "Technical Service Bulletin #01850" addressing this behavior at a site for Chevy Silverados, which I've heard share many parts with the H2.

Anyone know what I can do about the bulletin?

Thanks,

Ken
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  #9  
Old 01-11-2007, 10:22 PM
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Default Re: Heated seats turning on by themselves

Your BCM might need to be reprogrammed. My truck had the same problem and they told me that they might just have to reprogram it for me. Dropping it off tomorrow to get it checked out.
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  #10  
Old 01-12-2007, 03:33 AM
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Default Re: Heated seats turning on by themselves

Quote:
Originally Posted by LEcustoms
Your BCM might need to be reprogrammed. My truck had the same problem and they told me that they might just have to reprogram it for me. Dropping it off tomorrow to get it checked out.

I had to have the computer reprogrammed on my '05 to fix sporatic seat heater issues. The buttons were not working correctly or at all sometimes. The dealer reprogrammed and they've worked ever since.
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  #11  
Old 01-12-2007, 01:28 PM
Kendog Kendog is offline
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Default Re: Heated seats turning on by themselves

Great. Thanks guys. I appreciate the help.

Ken
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  #12  
Old 03-17-2007, 03:19 AM
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Default Re: Heated seats turning on by themselves

My 04 started this also yesterday .Any more info would be great .Taking it to the stealership Mon .If I can fix would be better .
Thanks ,John
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  #13  
Old 03-17-2007, 01:24 PM
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Default Re: Heated seats turning on by themselves

havent had the trouble on the H2, but i did have the problem on my 03 and 04 avalanches, seemed like the problem just went away...who knows why it started or why it stopped. kinda sucked in the summer getting a hot ass when its 90 degrees out.
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  #14  
Old 03-19-2007, 08:17 PM
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Default Re: Heated seats turning on by themselves

i also have the same problem with the heated seat coming on by itself, driver side, and only does it only when it rains???

also at times my seat bolster will pump up, driver side only, and that does it anytime???

is there a tsb on this?
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  #15  
Old 03-21-2007, 12:42 PM
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Default Re: Heated seats turning on by themselves

you know come to think of it, in the avalanche it would only fire up the seat when it rained too. I wonder if there was a breach in the wiring somewhere.

I just noticed that past two weeks that my heated seats wont come on, but if i shut down the truck and restart it, then they work. This is intermittent at best. Guess its all the on board computers...they get confused.
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