While it doesn't do it a lot it is annoying here in Florida to have heat when it's 90 deg. Any help appreciated. 1 Mouse

 

That is the control head. I had an Escalade that would do the same thing. The only way to get it to stop was to turn the truck off and back on again (real pain when you are driving and can't stop for a while!), but I ended up getting a new control head and it was fine.