GMC Customer Service Number

No. However, you may order a vehicle from the factory through an authorized GMC dealer. To locate a GMC dealer please visit the GMC Dealer Locator.

Payload is the maximum allowable weight of cargo to be carried in a vehicle, including all occupants and optional equipment. It is computed by subtracting curb weight from GVWR.

All 2007 through 2014 passenger cars and light duty trucks are covered. The Powertrain Limited Warranty is 100,000 miles or 5 years (whichever comes first). It is fully transferable and there are no fees and no deductibles. The Roadside Assistance and Courtesy Transportation programs are also 100,000 miles or 5 years (whichever comes first). For more details, please visit your GMC dealer or click here.

From oil changes to engine replacements, these automotive experts, nationwide, are trained to care for your vehicle’s special needs, undergoing 1 million hours of instruction annually. They use the latest and most advanced diagnostic equipment available. Both ACDelco and Genuine GM Parts are tested for performance and reliability. So no matter what kind of vehicle you own, trust it to the Certified Service technicians at your GMC dealer.

Incentive offers vary throughout the year. To see GMC’s national or regional incentives visit the GMC Special Offers page or, to inquire about any potential local offers, visit the GMC Dealer Locator. If you would prefer to contact us by phone, we can be reached at 1-800-462-8782 Monday - Friday, from 8:00 a.m. to 9:00 p.m. (Eastern Standard Time) and Saturday 9:00 a.m. to 6:00 p.m. (Eastern Standard Time).

Most new GMC launch vehicles have a link on their product page that allows consumers to sign up and receive email updates as additional information becomes available on the new launch vehicle.

OnStar Vehicle Diagnostics is an exclusive new service that runs diagnostic checks on a vehicle's key operating systems and sends the customer monthly reports by e-mail. It's available only from OnStar and GM – just one more way OnStar helps give you peace of mind on the road. Visit onstar.com for more information.

E85 Ethanol, a blend of 85% ethanol and 15% gasoline, is a renewable fuel made mostly from U.S.-grown corn. E85 Ethanol Flexible Fuel Vehicles (FFV) are designed to run on E85, gasoline, or any blend of the two.

These repairs must be performed by an Authorized GMC dealer, except in an emergency situation when a covered part or a GMC dealer is not reasonably available to the vehicle owner. It's in your best interest to take your GMC vehicle to a GMC dealer for all repairs since they are the most knowledgeable about the particulars of your vehicle.