GM Certified Service

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GM Certified Service

Product type	Auto repair service
Owner	General Motors
Country	U.S.
Introduced	1977; 47 years ago (1977)
Markets	U.S.
Website	mycertifiedservice.com

GM Certified Service, formerly GM Goodwrench, is an auto repair service for General Motors. In 2011, GM replaced the Goodwrench brand in the US with Cadillac, Buick, Chevrolet, and GMC Certified Service brands (Canada followed in 2014).