Are warped rotors considered "worn" for warranty purposes

Try to read this

I highly doubt it.. .

But Nissan vehicles seem to have chronic rotor warping problems. Seems to me that owners of these vehicles should get together and hire a lawyer.

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I had a set half-price out of GM a few years ago on a car with

No such thing as warped brake disks.

It's how you (ab)use them that's the cause. Brakes have changed over the last 20 years from asbestos to metal loaded materials. There have been more changes in the last few years to reduce dust. They are now more like racing brakes and need the same bedding in. If your usage (pad and disc temperature) is outside what the maker has designed them for you will have problems.

Mainly caused by transfer of material from pad to disc. Dragging brakes, needs interim maintenance to apply more lube to caliper sliding pins, back and thrust faces of pad to avoid any binding. Holding the brake on at a junction after a stop that has heated the pad and disk is also a known cause. Apply the parking brake (should be on cooler rear brakes or better yet a separate drum inside the hub of a rear disc) and release the service brake.

30 years ago you could expect the disc to outlast 3 or more sets of pads. It's becoming normal to change pad and disc at the same time as new pad materials wear both pad and disc.

Read both links and learned a lot - thanks.

Got a bit defensive with the suggestion that I have "(ab)used" the brakes. This is my fifth new car with disk brakes, each of the previous four having been driven for over 40,000 miles with NO brake problems and NO brake repairs. I tend to be very easy on the brakes, downshifting when going down steep hills and slowing gradually when anticipating a stop... I do pump the brakes at times with the belief that they will not heat up as much - could this cause the problem described in the above links? If I am at fault in creating the condition I have no problem paying for new rotors and pads. If I'm not at fault, I still think that there is a design or installation problem with either the OEM rotors or maybe with the OEM pads for which Nissan should be held responsible. Any comments?

Thanks John

FYI, Nissan is and has been turning rotors on Titans under warranty. Perhaps because judder has been such a widespread problem on the trucks. Nissan plans to issue a TSB which is basically an upgrade kit for thicker rotors. Check out Titantalk.com for details if desired.