Desertrat1

I have a 2007 F150 and after it was in a minor fender bender, it was taken to the local for body shop and repaired. After i got it back it still drives and operates just like it did before. The only problem now is that when the temp outside reaches around 84 degrees the alarm goes off!!!. I need to find out if anyone knows whats going on and how to fix it or what?, please help