Question about GMC Sierra 1500HD
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Posted on Jan 02, 2017
SOURCE: rear heat in 2004 gmc
I have a 2006 yukon and have had to replace the actuator in the rear heat/ac twice. It moves a valve that closes the cold/hot ducts. It is a cheap defective part/design.
Posted on Nov 07, 2008
This is not un- common. The heating elements do wear after a while. It is probably an open circuit in one of the pads in your seat. A quick restance check can determine which one it is.
Posted on Jan 24, 2009
See GM TSB 05-08-143-001, If you have Adjustable pedals, especially if they don't work with the memeory buttons, but function with thier own buttons. Its the Brake Pedal Position Sensor is shorted and mesing up the seat module which controls the heaters too. My 05 Suburban had the same issue
Posted on Dec 11, 2009
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