Question about 2003 Chevrolet Avalanche
Faulty seat heater pad or seat heater switch.I would first check the switch connections and fuse.
Posted on Oct 30, 2012
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Posted on Jan 02, 2017
If the switch lights up when you turn it on but the seat doesnt get hot, it is most likely the heating element in the seat. If the switch doesnt light up, you have a power or ground issue.
Posted on Nov 07, 2009
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
First....buy a drivers side air flow actuator at a auto parts place for dual zone heating/cooling.
(NAPA etc will have it.....or the dealer)
Open the glove compartment.....all the way....you may have to take the screws out at the bottom......look in at the heater assembly....look over to the left....you will see the two air flow actuators.
Look at the part you have and match it to the part on the heater assembly.
The actuator that is closest to the engine is the drivers side control.
Try your controls and check for heat and cooling on both sides.
The stepper motor in these actuators goes bad on quite a few...but over look that.....you have a great car,good for many miles of trouble free driving.
Posted on Nov 03, 2009
your mode actuator is stuck. try unhooking battery for a few minutes when you hook back up actuators will do a relearn.if this does not work will need to have replaced
Posted on Oct 20, 2008
I paid $18 at the dealer for just the knob. Then I found it online here for $4.70
Posted on Oct 14, 2009
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