Hummer H2 For those who like a little more gleam to their Hummer, the H2 offers a similar rugged look as the H1, but as a lower cost, and with more added features, making it almost a massive luxury SUV.

Seat heaters

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Old Feb 26, 2021 | 03:43 PM
  #1  
Brianst's Avatar
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Default Seat heaters

My driver's seat heater has a mind of its own. It turns on whenever it feels like it, sometimes non stop. Sometimes it does, sometimes it doesn't. It always works when I want it to. It can be a pain shutting it off 30 times in 30 minutes.
 
Old Feb 26, 2021 | 10:38 PM
  #2  
fastNYsix's Avatar
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From: upstate NY
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It’s more than likely the driver door module. Not the seat heater switch.
 
Old Feb 27, 2021 | 02:35 PM
  #3  
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From: BX NY North East
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the door rubbers like to leak water in that corner. pop off the heater switch carefully open it and clean it up many times they get corrosion from water intrusion.
 
Old Feb 27, 2021 | 05:11 PM
  #4  
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From: C-Town
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x2 caused by moisture intrusion. "Sometimes it does, sometimes it doesn't" (only acts up when raining or car wash?)
clean and seal the contacts. Also, inspect/check for the leaking seal/weatherstrip . In the meantime, you can disconnect the green connector under the seat.


 
Old Feb 27, 2021 | 09:12 PM
  #5  
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Again here is a YT video on the DDM.

 
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