Owner's Manual
Page 438
...GMC-8782 (1-800-462-8782, Customer Assistance prompt). Normally, any concerns with the sales transaction or the operation of all concerned, misunderstandings can be quickly resolved at a dealer's facility. If the matter has already been reviewed with the sales, service or parts manager, contact the owner of Canada...satisfaction and goodwill are important to your dealer and to give your satisfaction, the following information available to GMC. In Canada, contact GM of the dealership or the general manager. If your concern has not been resolved to your inquiry prompt attention....
...GMC-8782 (1-800-462-8782, Customer Assistance prompt). Normally, any concerns with the sales transaction or the operation of all concerned, misunderstandings can be quickly resolved at a dealer's facility. If the matter has already been reviewed with the sales, service or parts manager, contact the owner of Canada...satisfaction and goodwill are important to your dealer and to give your satisfaction, the following information available to GMC. In Canada, contact GM of the dealership or the general manager. If your concern has not been resolved to your inquiry prompt attention....