Owner's Manual
Page 371
... Dominican Republic: 1-800-75 1-4 135 STEP ONE-- Discuss your satisfaction, take the following steps: For help , contact the GMC Truck Consumer Relations Manager by calling 1-800-GMC-TRUCK ( 1-800-462-8782, Customer Assistance prompt.) In Canada, contact GM of Canada Customer Assistance Center in Oshawa by calling...-496-9993 (Spanish) a In the U.S. If the matter has already been reviewed with the Sales, Service, or Parts Manager, contact the owner of the dealership or the General Manager. STEP TWO -- GMC Truck has empowered its dealers to make decisions and repair vehicles, and they are...
... Dominican Republic: 1-800-75 1-4 135 STEP ONE-- Discuss your satisfaction, take the following steps: For help , contact the GMC Truck Consumer Relations Manager by calling 1-800-GMC-TRUCK ( 1-800-462-8782, Customer Assistance prompt.) In Canada, contact GM of Canada Customer Assistance Center in Oshawa by calling...-496-9993 (Spanish) a In the U.S. If the matter has already been reviewed with the Sales, Service, or Parts Manager, contact the owner of the dealership or the General Manager. STEP TWO -- GMC Truck has empowered its dealers to make decisions and repair vehicles, and they are...