My heater has gone out in my gmc canyon 2016. Know of any fixes or recalls?
Still under the 36/36000 warranty? Then a GMC dealer is your first stop.
There’s no mention of malfunctioning mode or blend doors in that article. At least I didn’t notice it. I’d consider the latter a strong possibility as well…
Is the blower running and delivering cold air or is the blower not running in the first place?