Gen 2 rotors warping is fairly common.

 

my experience has been different. All four rotors on the Journey were warped within 20k miles. Replaced with aftermarket rotors, we are now at 50k and no brake issues. We have owned two ford Taurus's in the past which warped rotors like they were candy. It was not until I started using aftermarket stuff that we stopped warping them. My daughters Mustang, both rear rotors were warped (go figure). My experience anyway.

 

To a metallurgist/engineer, this is true, to the average Joe its "warping". What most deem warped is actually a build up of braking material thats also know as cementite causing and uneven braking surface, thus a "warped" feeling. High heat causes this braking material break down/accumulation on the rotors. I am guessing that's what you are getting at Rapta? I still call it warped only because its a norm, but I know what you are talking about...

 

ahhhh....

 

I've had my left front caliper seize up twice now. I replaced the both calipers, rotors and pads the first time with after market parts. 6 months later it happened again and replaced just the rotors and pads and freed up the caliper with some C-clamps and seem to be moving with out any catching. They seem OK now but that makes me feel a little iffy on the truck for trips now. Other than that I've had no issues with the truck.