I noticed the outside temperature reading on my truck sems to be stuck on 56 deg. I dug around a few GM forums for trucks and didn't turn anything up. I did come across a (LINK) from a Vette site that described my problem exactly. Not sure if this is true for all GM vehicles, I haven't had a chance meet the listed requirements for a temperature adjustment but plan on checking it out tomorrow. Anyone else experienced this with their ambient temp readout? I took my sensor out today and checked for connection. When disconnected the dash read "----" but with it plugged back up it read "56". The sensor is functioning on some level perhaps just inaccurately.