Advice above about the Magnusson-Moss Act is correct
HOWEVER, If, for whatever reason, a dealer/manufacturer denies warranty coverage or voids your warranty entirely, the onus is then on you, through litigation, to prove them wrong. They have deep pockets.
I guess what I'm saying is that they can and will do whatever they want. It may be illegal under Magnusson-Moss; it may not be. Either way, it's you that foots the bill to prove they acted contrary to the law.
YMMV
HOWEVER, If, for whatever reason, a dealer/manufacturer denies warranty coverage or voids your warranty entirely, the onus is then on you, through litigation, to prove them wrong. They have deep pockets.
I guess what I'm saying is that they can and will do whatever they want. It may be illegal under Magnusson-Moss; it may not be. Either way, it's you that foots the bill to prove they acted contrary to the law.
YMMV