2016 z71 ambient temp help!!!

Rickyace09 · March 1

So I noticed my ambient temp this morning was 32 degrees and I got the ice message warning. I noticed it came all until the afternoon when it was 50 degrees out. I disconnected the battery and purchased an oem one. Installed it and took it for a ride. I noticed the temp when up to 65 degrees but I was a high of 55 outside. I drove it home and it stayed at 61 on the screen. I let the truck sit for about a few hours and took it for a ride. It dropped from 61 to 51 after driving for about an 15 minutes but went up to 55 degrees before parking. At that time it 47 degrees outside. I just checked it after 2 hours and it’s still reading 55. Can this be just a bad sensor? It sealed in a new packaged when I purchased it. Or can a weak battery cause this? Just trying to figure this out.

m3n00b · March 1

It takes time to calibrate after a new battery.

CamGTP · March 1

Usually it only takes less than 20min for the sensor to starting working if you disconnect the battery or doing any sort of flashing to the computer. My temp resets to 32 degrees even in the hot 85 degree summers when I'm using HP Tuners on it. Starts working shortly after.

I'd say give it a few days. If the new sensor is still way off compared to the real temp, I'd say that new OEM sensor is faulty.