The compass and thermometer hav issues (SR5 - integraeted into the rear view mirror asembly)
The compass has gone haywire and has been for days or weeks. It displays garbage. One time it displayed C

Before it has gone haywire only 1 or 2 days

The thermo is on Celsius and we want F

 

don't know if this will help but when mycompass goes wacky(and it happens about once every couple of months.) I find an open parking lot (walmart lots are good... ) come to a complete stop in an open area, then slowly drive in a tight circle (left/right it doesnt matter) keep going in that circle two or three times, or till the compass gets it's bearings back, you'll see it adjusting.......
now to change from C to F on mine if I Push in Temp switch to display outside temperature, and to toggle Temp on/off. Push Temp switch for 3 seconds until display blinks F° or C°. Release, then toggle Temp switch to select F° and C°. After 5 seconds of no switch activity, display will return to normal temperature reading.
here try this website below,hope it helps.........

http://www.mitocorp.com/flash/nightv...ingmirrors.htm