I just went to lunch and my overhead computer says that it is 55 out. It said the same thing this morning. The compass is working but the temp is off. What should I check on it?

 

I wish I knew what to tell you -- mine does the same thing occasionally. It just seems to "stick" and then eventually fixes itself.

 

Sometimes they hold the reading for a while, mine was notorious for it so I took it in to the dealer to have it reflashed, they ended up replacing the entire overhead unit as well as the sensor up front. Normally you have to wait three minutes or so or drive for a while over 20mph, at least thats what my service guy said. My .02.

 

Same thing was going on with mine when it was new. Dealer reprogrammed it or something and it has never done that again.