Harleymed21
New member
Has anyone experienced heating temp issue with their AT4. I have a 2021 Canyon, that while traveling, heat and blower are erratic at different times around 70 to 73 degrees. Also when automatic for temp, A/C pops on, even at temperatures above 70 degrees. GMC dealer service department doesn’t have an answer nor can find a problem. My other vehicles operate as designed regarding the heating / A/C condition.
