Posted by Tick Tock on July 02, 01 at 19:00:19:
In Reply to: Praise Dyno's effect on GM warranty posted by Rod on July 02, 01 at 08:44:29:
: Two GMC dealers have told me they would not install the Praise Dyno brake package on my '99 Yukon because it would void the warranty and create liability problems. Any experience with this issue out there and what did you do about it?
THE TRUTH
Most vehicle owners are not aware they are protected by federal law: the Magnuson-Moss Warranty - Federal Trade Commission Improvement Act of 1975. Under the Magnuson-Moss Act, after-market equipment which improves performance does not void a vehicle manufacturer's original warranty, unless the warranty clearly and conspicuously states that after-market equipment voids the warranty. Most states have warranty statutes, as well, which provide further protections for vehicle owners.
In other words, a dealer can't wiggle out of his legal warranty obligation merely because you install after-market equipment. To find out if any after-market equipment automatically voids your vehicle's warranty, check the owner's manual, usually under a heading such as "What Is Not Covered." Although the language may be negative, remember your vehicle manufacturer is simply saying he does not cover the after-market products themselves. He is not saying that the products would void the vehicle warranty.