My 2005 Dodge 2500, the overhead display for the outside Temperature is reading 88 when it's 58 outside. Does the same thing when switched over to Celcius, seems to be off by about 30 degrees. When I started after leaving overnight, it read correctly for about ten minutes, then is way off again. All other displays seem correct. The only addition I have made is adding a Gale Banks Economind system to the truck 10 days ago. This started yesterday. Any ideas?

 

Welcome to DF

it's only a mere coincidence with your exhaust... 2 isolated items. Others have had the same problems so let me move this to the 3rd Gen section and get you some answers.

 

I would try replacing the sensor on the front of the truck.

 

You might try a computer reset. Can't hurt, anyway.