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A little background... several automakers tried to make audio upgrades a voidable offense (as a way to make buyers get sucked into expensive factory options). SEMA fought and won one for the consumer.
There is a law protecting the aftermarket/car owner from having a warranty voided because of aftermarket products. It has been around for as long as I can remember. One of my old bosses use to hand it out to customers all the time. I will see if I can find it.
There is a law protecting the aftermarket/car owner from having a warranty voided because of aftermarket products. It has been around for as long as I can remember. One of my old bosses use to hand it out to customers all the time. I will see if I can find it.
Yes, you are absolutely right. Magnuson & Moss Warranty Act. This applies to the factory warranty. And this law favors the consumer if he has the resources to take a dealer to court if needs be.
But in any case,
GMPP isn't factory warranty, it's more like an insurance policy and part of the insurance policy is that it is void if the vehicle is modified in any way.