Owner's Manual
Page 444
...the following Step One first. 7-2 If your concern with the sales, service or parts manager, contact the owner of all concerned, misunderstandings can be quickly resolved at a dealer's facility. In Canada, call the GMC Consumer Relations Manager at 1-800-263-3777 (English) or 1-800-263...-7854 (French). STEP TWO: If after contacting a member of Canada Customer Communication at 1-800-GMC-8782 (1-800-462-8782, Customer Assistance prompt). Normally, any concerns with the sales transaction or the operation of the vehicle will likely be taken: STEP ONE: Discuss ...
...the following Step One first. 7-2 If your concern with the sales, service or parts manager, contact the owner of all concerned, misunderstandings can be quickly resolved at a dealer's facility. In Canada, call the GMC Consumer Relations Manager at 1-800-263-3777 (English) or 1-800-263...-7854 (French). STEP TWO: If after contacting a member of Canada Customer Communication at 1-800-GMC-8782 (1-800-462-8782, Customer Assistance prompt). Normally, any concerns with the sales transaction or the operation of the vehicle will likely be taken: STEP ONE: Discuss ...