Engine light and outside temp gauge issue

[BigRed4x4]

Well I got my truck stuck this weekend on a road that's not maintained by the county but is still a public road. It's a bit rutted up but nothing crazy, although bad enough to pull me into the soft shoulder. I wasn't really stuck, just couldn't back out on my own because the truck had slid very close to a tree so I stopped trying to get out. I wasn't beating on it before or after I got stuck nor while trying to get unstuck. I called a friend who lived near by and was pulled out in no time.

After I got home I shut the truck off and the next morning started it up and my check engine light is on and the outside temp gauge is stuck at -40. Other than putting the truck into 4x4 and spinning my wheels in a quick attempt to get out I don't see what could have caused that issue.

Any ideas? Should I just unhook the battery? Truck runs fine, it's a 2014.

 

[Ricks Ram]

Your outside temp is measured by your drivers side mirror. If the mirror is not reading the outside temp I have read posts that it can cause your check engine light to come on. Check and see if some debris got into the small hole located near the hinge of the mirror on the bottom area of the extension arm and go from thete. Your truck will automatically show a default of -40 degrees if you mirror is not sending a proper signal.

 

[Ratket]

..off topic.. it was about 35degrees out the other morning.. started the truck.. loaded the family and headed into town.. mind u the truck was sitting in the sun for about 3-4 hours I fully expected the heated seats to trigger like normal.. but apparently the sun warmed the mirrors up and my truck says it is 72 out" like ******* hell" well it didn't take long for the temp to drop down and the heated seats/ steering wheel kicked on. Sorry for jacking ur thread- you prolly got something in that hole " mud"/ debri

 

[Jmhm17]

Your outside temp is measured by your drivers side mirror.

THaTS WHAT THAT IS?!!!?! almost 2 years and now I know... Amazing.. I saw it a while back and was like "wtf is that??"

 

[BigRed4x4]

Thanks guys. The mirror was splattered pretty good with mud, I'm sure that's what it is.