Question about 2003 Pontiac Bonneville

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Heated driver seat problem

When i turn on the heated seat the light comes on for one second and goes right back off, and the seat never heats up. Is this a switch problem or the heating element in the seat and how do I trouble shoot? Aso unsure how much I am getting into taking the seat apart, looking for advice before I take seat out and have the car out of service.

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  • bococke Dec 24, 2008

    I have the exact same problem on my 02 bonneville. It is just the drivers seat that does it, the passenger seat works fine.

  • Anonymous Dec 29, 2008

    I HAVE THE SAME PROBLEM WITH MY 02 SSEi BUT THE PASS SEAT

  • Anonymous Jan 21, 2009

    I have the same problem but with a 2000 ssei my friend that works in a service dept. in a dealer look at it for me an told me that the heating elements were no good and that they will have to be replace and that it would cost me @ $400.00 part and labor he advice me to try and get the after market heating seat kits that go for @ $80.00 on line and its about a two hr. job .

    **note** this heating seats issue is common on bonneville.

  • Vejz0rz Feb 14, 2009

    I have this problem with my 02 Bonneville sse. No passenger heat =(

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I just repaired one not long ago.It was a 2001 with heated seats.The first thing you can do is switch the switches to see if the problem moves to the other seat.There are at least three little heaters attached to the foam,that is bonded to the leather.One had a broken wire,the other two [that I know of in the base] tested good.Seems they all have to be working,so everyone must be tested for continuity,with out being pluged in to the others.The only way to see whats going on is to somewhat remove the leather from the seat. With extreme care I was able to get more wire out of the heater and soldier it back on.Then used silicone or 3m window welder around[I don't remember wich] to protect it as that is how it kind of it from the factory. It looked like the wire broke at the edge of the protective part due to sitting on the seat too many times. Bad design,to hold up over time.

Posted on Mar 12, 2009

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