This is part of the Magnuson Moss Warranty Act:  <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Magnuson%E2%80%93Moss_Warranty_Act" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Magnuson%E2%80%93Moss_Warranty...</a><p>In effect, the manufacturer can only deny warranty claims for a specific part iff the consumer&#x27;s aftermarket repair&#x2F;modifications were responsible for the warrantied part failing. i.e. &quot;I tinted the windows, and now the brakes are failing&quot; does not result in warranty claims on the brakes being denied. However, &quot;I replaced the brake pads [with faulty pads], and now the brake rotors are failing&quot; <i>can</i> result in a denied warranty claim.