Question about 2005 GMC Sierra

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My 2003 GMC SIerra's heated front seats won't stay on when I turn on the drivers side it shuts both seats off.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 2003 GMC Sierra heater Blower wont shut off

My 2003 Sierra's blower came on by itself in the garage while I was sleeping and ran the battery completely down. I had to replace the blower switch located under the glove box next to the blower at the bottom of the right corner of the dash. The switch is in front of the blower and held in by two screws. Disconnect the two wire connections. This is a "dealer only" part and cost me 65.00. Also check the wire harness with seven wires connected to it for melted plastic. It will be marked "ABCDEFG". If it has melted, you'll need to replace it. Pay attention when reinstalling either part, that the wires "ABCDEFG" match the switch in that order.

Posted on Jan 17, 2009

  • 1 Answer

SOURCE: 03 chevy tahoe

There are seperate blowers for the front and rear air. It is most likely either your blower motor or the resistor, both located under the passenger side dash. I got a blower from a salvage yard for $25, But ended up having to get the resister from the dealership for about $130. Hope this helps.

Posted on Jan 20, 2009

  • 1 Answer

SOURCE: Heated seats won't stay on in 2004 GMC Yukon Denali

There is a widespread problem with electrical shorts with the seat warmers. I bought the extended warranty through CarMax and theyy fixed it. Retail repair cost on that would have been $900+. It may be covered by GMC via a recall, but only if you raise enough hell.

Posted on May 05, 2009

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SOURCE: 2003 chevy Avalanche. The heated seat shut off prematurly.

There is a service bulletin for this concern from GM.What you will have to do is go to the dealership and they will reprogram the drivers seat module.It should only take a 1/2 hour.The bulletin number is 05-08-50-008.Hope this helps.Good luck.

Posted on Dec 24, 2009

  • 1 Answer

SOURCE: wiring diagram 2003 GmC Sierra

I need wiring digram for GMC 2003 SIERRA . I have the left head light working fine but the right I have no power to it. I have checked the fuses and relaysand so far have not found and broken or frayed wires.

Posted on Mar 06, 2010

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03 chevy tahoe


There are seperate blowers for the front and rear air. It is most likely either your blower motor or the resistor, both located under the passenger side dash. I got a blower from a salvage yard for $25, But ended up having to get the resister from the dealership for about $130. Hope this helps.

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2 Answers

Seats not heating on either of front seats. Also seat adjustments are not working


I have the very same problem, no seat heat on either side and no power seat control on the drivers side. anyone know which fuse or switch operates the drivers side power seat? Thanks

Nov 13, 2008 | 2006 GMC Sierra

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