The temp reading on my mirror is often wrong. Sometime it is right. Today it read -31 then it said oc. Other times it is right but not often. Any idea where the sensor is located and if that is the problem?
I got an ambiant air sensor today. Bought one from the dealer $31. mistake I checked GMParts direct when I got home and it is $12 plus shipping. I should know better. Anyway It took about 10 minuted to replace and fixed the problem.