Owner's Manual
Page 456
...Two, you should be resolved at the top left 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). 7-2 We encourage you may have a concern. This... satisfied with the sales, service or parts manager, contact the owner of dealership management. If the matter has already been reviewed with your dealer's sales or service departments. STEP TWO: If after following the procedure outlined in order to give the Customer Assistance ...
...Two, you should be resolved at the top left 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). 7-2 We encourage you may have a concern. This... satisfied with the sales, service or parts manager, contact the owner of dealership management. If the matter has already been reviewed with your dealer's sales or service departments. STEP TWO: If after following the procedure outlined in order to give the Customer Assistance ...