 Reuters | Buick unseats Toyota in JD Power study Detroit Free Press, United States Six of GM?s brands ? including the company?s volume Chevrolet brand, as well as Pontiac ? finished below the industry average of 170 problems per 100 vehicles. Rick Spina, vice president of quality for GM in North America, said GM is using those best ... Buick Tops 2009 Vehicle Dependability Study Lexus unseated at top of key dependability study Buick and Jaguar Take Dependability Crown from Lexus |