I have a dodge ram 3500 van 15 passenger. While driving at highway speed, my brakes come on. I pull over for 5 minutes and let it cool. I drive away and it doesn't do it again. I've replaced the brake pads, rotors and bled the brakes and the problem continues. Does any one know what the problem is? Also, it only happens when it's hot outside.

 

Are your brakes actually trying to apply without stepping on the pedal? Or is the lite in the dash coming on?

What year is your van?