My seat heater turns on and off by itself. It only does it every once in a while. This morning I watched it turn on high, then go to medium, then low, and then off, back on to medium.....well you get the picture. Any idea what causes this? Do I have a bad relay or something? All my fuses are good. Any input is greatly appreciated. Thanks
seat heaters have a mind of their own
- Thread starter HASTINGSRJ
- Start date
If you find out, let me know- I have a buddy that has one that is doing the same thing. The only thing that I can think of is the module, but not sure if the heated seats run through that????
I have a thread already started about this very same problem. The post there have pointed to the BCM or some door module. I first had this happen in Jan or Fed of this year and it just happend again this weekend? I don't really have answer but those are the suggestions I was given. Please keep me posted if you find a fix. 
http://www.duramaxdiesels.com/forum/showthread.php?t=10902&highlight=Seat
http://www.duramaxdiesels.com/forum/showthread.php?t=10902&highlight=Seat