2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 637

Reporting Safety Defects to the Canadian Government If you live in Canada, and you believe that your vehicle has a safety defect, notify Transport Canada immediately, in addition to notifying General Motors of Canada Limited. Call them at 1-800-333-0510 or write to: Transport Canada Road Safety Branch 2780 Sheffield Road Ottawa, Ontario K1B 3V9 1-800-333-0510 Reporting Safety Defects to General Motors In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors. Call 1-800-GMC-8782 (1-800-462-8782), or write: GMC Customer Assistance Center P.O. Box 33172 Detroit, MI 48232-5172 In Canada, call 1-800-263-3777 (English) or 1-800-263-7854 (French), or write: General Motors of Canada Limited Customer Communication Centre, CA1-163-005 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7 8-17