Question about 2003 GMC Yukon
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Posted on Jan 02, 2017
SOURCE: Front driver seat adjustments.
I just had this problem fixed with a Tech 2 tool in my '03 yukon xl denali. The seat has a control module underneath of it that controls the 2-position memory, the power seat functions, etc. It needed to be reprogrammed - about $200 at the dealership, or free if you 1) have a good relationship with your service manager, or 2) own or know someone with a Tech 2 tool.
At first I thought it was because I had a Canadian model truck (the headlight switch is stuck "on" at all times no matter what position it's in, and the rear air controls are in celcius and not farenheight).
I'm assuming the switch worked before, and you may have encountered some sort of electrical issue (like a dead battery, or you gave someone a jump, you have a bad ground, you just installed an aftermarket stereo, you used a computer tuner, etc.).
Hope this helps!
Posted on Dec 30, 2008
First of all did you check the fuses? There should be one for the seats. If they're ok then get a Haynes Repair Manual for your 02 Envoy it'll probably even have illustrations showing you how to do it. Its my best advice, you can get one from just about any auto part store.
Posted on May 01, 2009
Check connections under seat are all connected ok. Don't use a multimeter as airbag wiring also under seat and can set off an airbag if you don't know what you are doing! If connections are ok, you'll need a wiring diagram of the seat circuit, then you can investigate feeds & earths etc. Otherwise may be better to get it checked at your local GMC dealership.
Posted on May 08, 2010
There is a seat module under the seat that reads the inputs from the switches and then sends power to the motors, disconnect and reconnect and it may reset. If not you will have to check inputs at module.There is more than one connector on it, you will have to disconnect the power supply.
Posted on Mar 19, 2013
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