Loss of One or More HVAC Blower Motor Speeds on GMC Envoy

Problem Description and Possible Solution

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

Problem Data
RepairPal Verified
Average mileage: 114,529 (1,000–345,000)
9 model years affected: 1998, 2002, 2003, 2004, more2005, 2006, 2007, 2008, 2009
193 people reported this problem
Viewing 1 - 20 of 100 comments
No blower at all, either hot or cold
Blower fan continues to run when engine is shut off.
Goes on and off at random.. 5 hasn't worked,in a long time ... every once in a while it works. How do I get this fixed? And how much should it cost?
Position 4 on fan control know does not work any longer. Other positions work fine.
My blower stopped working 1 # at a time and today #5 finally went
The blower for the back of the vehicle is stuck on and is blowing hot air. It will not turn off and it won't blow cold air. Also, The blower level 5 in the front part stopped working. The air conditioning is not working in the front either.
Blower only works on 4/5 ...
Blower was not working on 3, 4, 5, fixed it now it is not working on 5 at all and 4 sometimes.
Air and heat stopped blowing
2007 GMC Envoy Denali

Blower remains on high, even when car is turned off, no other speeds will operate. When fuse is pulled, only then will the motor shut down.
My blower motor continued to run after the engine was shut off and key removed , now the blower won't do anything is it the relay or resister ? still not fixed the weather not cold my research tells me its mainly in cold weather thanks
The blower doesn't blow at all 1thru 5 I get heat when I keep moving
Blower motor does not cut off, sometimes, a/c and defrost. Ran bartery down.
Air condition nor heat blower is working!
Ac only working when the weather temp Is below 80 degrees. Blowing hot air.
Front blower not working but back blower just fine.
Possible blower motor resistor.
Heater would not blow properly. It was only at one speed. Had to take it in and replace the blower motor
Does not work on high(5)
ac fan quit...