The Magnusson-Moss Warranty Act, 1975
The Magnusson-Moss Warranty Act (enacted in 1975) states consumers can have maintenance services done by their local independent service shop without affecting the warranty.
If the company that built your car is going to require you to have that vehicle serviced at the dealership as part of the warranty, the dealership would have to provide that service for free.
Specifically, the language states:
“No warrantor of a consumer product may condition his written or implied warranty of such product on the consumer’s 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; except that the prohibition of this subsection may be waived by the commission if –(1) the warrantor satisfies the commission that the warranted product will function properly only if the article or service so identified is used in connection with the warranted product, and (2) the commission finds that such a waiver is in the public interest.”
Enjoy your freedom! The Magnusson-Moss Warranty Act gives owners of cars and trucks the freedom to choose where their vehicle will be serviced without voiding their new-car warranty.