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Will adding aftermarket performance products void my car's factory warranty?

Sunday, January 01, 2006 - Kevin Rutledge

U.S. Federal law sets forth requirements for warranties and contains a number of provisions to prevent vehicle manufacturers, dealers and others from unjustly denying warranty coverage. With regard to aftermarket parts, the spirit of the law is that warranty coverage cannot be denied simply because such parts are present on the vehicle, or have been used. The warranty coverage can be denied only if the aftermarket part caused the malfunction or damage for which warranty coverage is sought. Disputes in this area usually boil down to arguments over facts and technical opinions, rather than arguments over interpretations of the law.

1.The Magnuson-Moss Warranty Act (15 U.S.C. 2302(C))

This federal law regulates warranties for the protection of consumers. The essence of the law concerning aftermarket auto parts is that a vehicle manufacturer may not condition a written or implied warranty on the consumers using parts or services which are identified by brand, trade, or corporate name (such as the vehicle maker's brand) unless the parts or service are provided free of charge. The law means that the use of an aftermarket part alone is not cause for denying the warranty. However, the law's protection does not extend to aftermarket parts in situations where such parts actually caused the damage being claimed under the warranty. Further, consumers are advised to be aware of any specific terms or conditions stated in the warranty which may result in its being voided. The law states in relevant part:

No warrantor of a consumer product may condition his written or implied warranty of such product on the consumers using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade or corporate name... (15 U.S.C. 2302(C)).

2. Clean Air Act Warranty Provisions (42 U.S.C. S 7541 (C) (3) (B))

The federal Clean Air Act requires vehicle makers to provide two emissions-related warranties -- a production warranty and a performance warranty. The production warranty requires the vehicle maker to warrant that the vehicle is designed, built and equipped so that it conforms with emissions requirements at the time of sale. Theperformance warranty requires the vehicle maker to warrant that the vehicle will comply with applicable emissions requirements as tested under state vehicle emissions inspection programs for the warranty periods specified in the law (for model year 1995 and later vehicles, the warranty is 2 years/24,000 miles for all emissions-related parts and 8 years/80,000 miles for the catalytic converter, electronic emissions control unit and on-board diagnostic device). The performance warranty is conditioned on the vehicle being properly maintained and operated.

Like the Magnuson-Moss Act, vehicle manufacturers may not refuse warranty repairs under the Clean Air Acts performance and defect warranties merely because aftermarket parts have been installed on the vehicle. The only circumstance under which the vehicle manufacturer can void the emissions warranties is if an aftermarket part is responsible for (causes) the warranty claim.

 Additional Information:

http://www.sema.org/main/semaorghome.aspx?ID=50096

http://en.wikipedia.org/wiki/Magnuson-Moss_Warranty_Act

http://www.law.cornell.edu/uscode/html/uscode15/usc_sup_01_15_10_50.html

http://www.lemon-law-explained.com/magnuson-moss-warranty-act.html

Community Comments

Thursday, January 27, 2011 - SCOTT

I purchased an 09 Silverado new from a Chevy dealer. I asked if I could purchase a GM cold air intake from the dealer at the time of purchase. The answer was sure and I paid the extra $400. I dropped it off the next day and thats when the dealer realised that the GM cold air intake had not been produced for the 09 and the 08 part would not fit. I was told that the K&N cold air intake designed for my 09 Silverado would void my warranty. I was told that Chevy would produce one for my truck in a few more months, so I waited. It is Jan 11, and they still have not produced an 09 version. I received a check from the dealer for $400, but what I wanted was the added performance and extra gas mileage from the part. What should I do?

Wednesday, September 10, 2014 - BENJAMIN MALDONADO

Buy the K&N Cold Air Kit and install it but do not discard the factory original parts so in case of a possible warranty service you just re-install the factory original parts and have the vehicle serviced the when you get it back home re-install the K&N Kit again. Problem solved.

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