Problem Reports

I had the same problem that my fan speeds would not run on 1-3, but I found the problem, the problem is there is a plug in to the fan, it is located on the passenger side under the dashboard, the plug has loose wires that you can wiggle when on speeds 1-3, I have tried to tighten the wire, it works for awhile but then it loosens back up. It could be an easy fix to figure how that plug can be tighten.

Last year at the beginning of the summer, the same problem occurred. The A/C stopped working on speeds 1, 2 and 3. Only 4 works. The problem was resolved through the dealer, and it was explained that it was a plastic switch that had failed. This year, the same problem. Of interest, is that the problem has happened at the beginning of the summer months both times. If this is a common problem, why hasn't the vehicle been recalled for a free fix? If I knew how to fix it myself, I would.

blow works on speed 1-2 and 4 speed 3 does not work at all

I have the same problem, blower does not work on 1-3 only 4 but then occasionally will begin to work on the lower speeds. I was told it was a switch that cost $200 to replace - so guess I'll have to run on high or not at all!

I have seen this on my canyon, as on others. My blue wire was burnt as the pins were too. What is going on with this the design on the plug that holds the wire in the socket allows the wires in the connector to drop away from the pins so they arc. what i did was shrinked tubed the burt wire. clean all the contacts push the wires all the way into the connector. (I forgot to say you have to remove the black retainer on the grey plug). zip tied them in a groups of two then replace the retainer plug and then epoxied the back of it so the wire can not drop. I wished GMC would have fixed this design issue high-current and bad plugs do not mix.