Originally Posted by jcoss2500
I have a 2011 Ram Diesel and the ambient sensor has been replaced and the outdoor temp never is correct it can be as much as 30 degrees off, the outdoor sensor effects the indoor climate control, if the a/c is on and the outdoor sensor reads 37, it cuts the a/c off. Dealer is waiting for an answer from engineering @ Dodge. Leaving for SC next week don't want a/c problems.
I just purchased a 2013 RAM 2500 CTD with the RA4 system. The temp was the first thing I checked before leaving the dealer. I have monitored it for several days now. If I'm parked on pavement in the sun, and I'm there a bit (say several hours), when I first start up, the temp is sometimes 15-20 degress too hot. It's from sitting in the sun. Once I get moving, the temp moderates almost to exactly what the Weather Channel reports on their app. I'm very satisfied with the temp readings. My Ford pick-up did the same thing-I'm not sure why, but I think in my case, it's just sitting in the heat and the temp gauge (just beneath the driver's side mirror-I think) gets heat reflected back on it from the hot pavement?
It's been moderately warm here in Arkansas, but when the temp gauge reads super hot, the indoor climate (I've noticed) is always on it's coldest setting I assume...the seat coolers are going and the AC is on full blast. I don't mind really, because as soon as I start up, the AC settings then become directed by the driver.