I have a 2010 traverse and have had issues with the air conditioning blowing heat the past two summers. Finally tried to do something about it and essentially all I’m getting to is the snowflake button flashing 3 times. Despite that that’s only supposed to happen when it is too cold out, the car is registering the temperature as 92 out. Thought it was the coolant and I filled it up because it was almost empty, but no change. I’ve also tried cleaning the temp censor on the dash and pressing both the recirculating button and air conditioning button at the same time but still getting heat. Every thing I’m finding either has a “resolution” I’ve already tried with failure or how to hot wire the car which I am way too cautious to even think about. Any help is appreciated!