Owner's Manual
Page 438
... you have the following steps should be resolved by your dealer's sales or service departments. If the matter has already been reviewed with a member of dealership management. If your concern has not been resolved to call the toll-free number in Oshawa by calling 1-... sales, service or parts manager, contact the owner of all concerned, misunderstandings can be resolved by the dealership without further help, contact the GMC Consumer Relations Manager by calling 1-800-263-3777 (English) or 1-800-263-7854 (French). Normally, concerns can occur. Customer Assistance and Information...
... you have the following steps should be resolved by your dealer's sales or service departments. If the matter has already been reviewed with a member of dealership management. If your concern has not been resolved to call the toll-free number in Oshawa by calling 1-... sales, service or parts manager, contact the owner of all concerned, misunderstandings can be resolved by the dealership without further help, contact the GMC Consumer Relations Manager by calling 1-800-263-3777 (English) or 1-800-263-7854 (French). Normally, concerns can occur. Customer Assistance and Information...