If you can’t recite your federal warranty rights, you may have been cheated.
The Magnuson Moss Warranty Act (15 U.S.C. §2302) prohibits automakers from conditioning warranty coverage on the use of branded products unless they first prove to the Federal Trade Commission that ONLY those products will work or they give those products to customers for free. It’s called the prohibition against “tie-in sales,” and no automaker has yet received a waiver to get around it. They must prove an aftermarket part or service caused damage before attempting to deny warranty coverage over either one. The burden is on them, not you.
If you ever heard from anyone that automaker brand parts and services are required to maintain warranty coverage, this is your chance to be heard!