Owner's Manual
Page 405
... Detroit, MI 48232-5172 In Canada, please call us at 1-800-GMC-8782 (1-800-462-8782), or write: GMC Customer Assistance Center P.O. Reporting Safety Defects to General Motors In addition to Product Service Bulletins can be obtained by contacting your vehicle. Each bulletin contains instructions to assist in addition to notifying General Motors of Canada...
... Detroit, MI 48232-5172 In Canada, please call us at 1-800-GMC-8782 (1-800-462-8782), or write: GMC Customer Assistance Center P.O. Reporting Safety Defects to General Motors In addition to Product Service Bulletins can be obtained by contacting your vehicle. Each bulletin contains instructions to assist in addition to notifying General Motors of Canada...