Temperature reading on '00 GMC Sierra

[hockey_19pro]

The other morning I went out to start my truck and let it warm up while I was scraping the layer of ice off all the windows. When I got back in, however, I looked up at my digital thermometer/ compass on the rearview mirror and the temperature read 51 degrees!...it was only about 20 degrees outside. So I turned off the whole cluster unit and then checked it again the next day, same problem. The compass portion works fine, but my thermometer is WAY off. Could it be something with all the freezing rain screwing up the temperature sensor outside? Where are the temp. sensors even located on this year of pick-up? Any help would be great, thanks.

[Scott K]

The sensor is located behind the passenger side front park/turn signal, and it isnt suppose to update unless you are traveling above 5mph. I would try thawing your truck out, before being to concered about repairing it. Ice can due some strange things to electrical stuff.

[Outfitter17]

I have a similar problem on my '01 chevy work truck. The temp/direction have been screwy for a few months now. It started in august. Sometimes it works, most of the time the box has a bunch of strange lines along with whatever number or letters are suppose to be there? Anybody else seen this?