Originally Posted by Stevenkatrina01
We bought a 2018 Chrysler Pacifica just over a month ago. This morning my husband ran to get food and the temperature read that it was 30 degrees outside. We are in the south and it doesn’t get lower than 70 degrees in the summer. Later this afternoon we tried to run errands with our small children and the temperature display dropped to as low as negative 16 degrees and our our AC would not engage and only blew very hot air. We tried turning the air off and on, changing from vent to floor and back, recycled and outside air and nothing worked. We have an appointment scheduled with the dealer in a few days. Has anyone experienced this before? I saw another post about the temp being off by a few degrees but this is a huge difference and is affecting our AC.
Welcome the forum.
The dealer will probably have to update the software or change a sensor. The ambient temperature sensor was replaced on my van since software updates didn't fix the problem I had with a stuck/delayed cooler temperature reading. It was winter at the time so it didn't affect the AC.
Some things you might try before you go to the dealer are:
Try changing the Units in the Uapps, Settings, touchscreen display to Celsius and then back to Fahrenheit.
If you have the climate on Auto settings, try the manual settings and set the temperature to all the way hot (84) and then all the way cold. Probably won't change anything, but at least you've tried to do something.
When my back up sensors don't seem to be working as well as I think they should I go through the car wash and they seem to improve. The van doesn't get that dirty, but there is a lot of dust here. The ambient temperature sensor is toward the front of the van, so maybe check to see if any leaves or debris could have come in somewhere near the windshield or engine.
I hope someone has some better suggestions.
If you put your van info (year, trim, gas/hybrid, etc.) in the signature line of the UserCP it might help others assist you.