AkTallPaul

That happened to me last year...I had it plugged in all night because I had to make a run to town the next day...Got ready to go so fired it up to warm up a bit...headed to town an noticed the gauge said -40...I thought nice its warming up a bit...but a few miles down the road I realized that I was wrong when the gauge at the bank said -58. the heat from the engine threw it off...

jswar

Same here. It seems that when snow gets packed up under the hood it screws with the sensor.

PoorMansCat

YES, this is a known issue with the 06 trucks. There is a TSB that corrects this and its part of the same TSB that corrects for the interior lights shutting off after 10-15 seconds with the door open, which you may also be experiencing.
With that being said, some have reported that they can un-hook both batteries for 1 hour or so and it will fix the interior lighting issue, not sure if it corrects the overhead display issue. Might be worth a try.

thor1721

yea mine does it to almost like it recalibrates itself

BroncoAZ

I get the same, but usually in the summer when it is 115 degrees out. I guess I should've complained sooner and gotten it fixed under the TSB.

IPDiesel

I had the same issue-and took it to the dealer.

They reflashed it & all is well. Simple fix. There is nothing wrong with the sensors-just the programming.

HOBrian

That's funny right there!!