Every 2016 and newer GMC vehicle comes with a 5-year/60,000-mile (whichever comes first) transferable Limited Powertrain Warranty. Plus, you get the 5-year/60,000-mile (whichever comes first) 24/7 Roadside Assistance and Courtesy Transportation Programs and much more. Refer to your GMC Limited Warranty and Owner Assistance Information booklet or see your GMC dealer for additional details.

Every 2016 and newer 2500/3500 series Heavy Duty (HD) Sierra Pickup equipped with a 6.6L Duramax Turbo- Diesel Engine comes with a 5-year/100,000-mile Powertrain Limited Warranty and 5-year/100,000-mile 24/7 Roadside Assistance and Courtesy Transportation Programs.


GMC vehicles registered in the U.S.A. are covered for 3 years/36,000 miles (whichever comes first). The complete vehicle is covered from bumper-to-bumper —including tires, towing to your nearest GMC dealer and cosmetic corrosion resulting from defects. Repairs will be made to correct any defect in materials or workmanship. In addition, rust-through corrosion will be covered for 6 years/100,000 miles (whichever comes first).


GMC will warranty certain eAssist components for 8 years or 100,000 miles, whichever comes first, against warrantable repairs to the specific eAssist components. Refer to your GMC Limited Warranty and Owner Assistance Information booklet or see your GMC dealer for additional details.


GMC products are equipped with engines produced by GM Powertrain or other suppliers to GM worldwide. The engines in GMC products may also be used in other GM makes and models.


GMC vehicles and their components are assembled or produced by different operating units of General Motors, its subsidiaries or suppliers to GM worldwide. We sometimes find it necessary to produce GMC vehicles with different or differently sourced components than originally scheduled. Since some options may be unavailable when your vehicle is assembled, we suggest you verify that your vehicle includes the equipment you ordered and that, if there were changes, they are acceptable to you.


Installations or alterations to the original GM-equipped vehicle (or chassis) are not covered by the GMC New Vehicle Limited Warranty. The special body company, assembler, equipment installer or upfitter is solely responsible for warranties on the body or equipment and any alterations (or any effect of the alterations) to any of the parts, components, systems or assemblies installed by GM. General Motors is not responsible for the safety or quality of design features, materials or workmanship of any alterations by such suppliers.


OnStar services require vehicle electrical system (including battery), wireless service and GPS satellite signals to be available and operating for features to function properly. OnStar acts as a link to existing emergency service providers. Subscription Service Agreement required. Call 1-888-4ONSTAR (1-888-466-7827) or visit for OnStar’s Terms and Conditions, Privacy Policy, and details and system limitations. Additional information can be found in the OnStar Owner’s Guide.


Always use safety belts and the correct restraint for your child’s age and size. Even in vehicles equipped with the Passenger Sensing System, children are safer when properly secured in a rear seat in the appropriate infant, child or booster seat. Never place a rear-facing infant restraint in the front seat of any vehicle equipped with a passenger air bag. See the Owner’s Manual and child safety seat instructions for more safety information.


We have tried to make this website comprehensive and factual. We reserve the right, however, to make changes at any time, without notice, in prices, colors, materials, equipment, specifications, models and availability. Specifications, dimensions, measurements, ratings and other numbers on this website are approximates based upon design and engineering drawings, prototypes and laboratory tests. Your vehicle may differ due to variations in manufacture and equipment. Please check with your GMC dealer for complete details. GMC reserves the right to lengthen or shorten the model year for any product for any reason or to start and end model years at different times. Certain vehicle features may lose their usefulness over time due to obsolescence from technological changes.


Pricing, Errors and Omissions: Displayed part prices are the Manufacturer’s Suggested Retail Price (MSRP), which excludes shipping, installation, wheel components (if applicable), taxes and any other fees that may apply. Dealer prices may vary as participating dealers are solely responsible to set final part prices. Installation prices, where applicable, are also set by the dealer. Prices are subject to change without notice. Acknowledgement of an order means that your order has been received; it does not mean that your order has been accepted or shipped or that the price or availability of an item has been confirmed. GMC makes a conscientious effort to describe and display products accurately on this site. Despite these efforts, items on the site may be mispriced, inaccurately described or unavailable. As a result, we cannot and do not guarantee the accuracy or completeness of any information, including prices, images, specifications, availability and services. GMC reserves the right to change or update information to correct errors, inaccuracies or omissions at any time without prior notice. We apologize for any inconvenience.

Return Policy: GMC Accessories purchased online and shipped directly to a customer or picked-up at a participating dealership may be returned for a complete refund, including shipping, within 30 days of customer receipt. To be eligible for a return, the GMC Accessory must also be in original condition (i.e. new and unused), and must be returned with all parts/components, instructions and the original shipping container. To qualify for a refund, customer must return an eligible accessory to the selling dealership.

Limited Warranty: GMC Accessories installed by an authorized GM Dealer will be covered, parts and labor, for the longer of the following: a) 12 months/12,000 miles (whichever comes first), or b) the balance of the applicable portion of the New Vehicle Limited Warranty. See your dealer for details. GMC Accessories (i) purchased at a dealership (but not installed by a dealer), (ii) shipped directly to a customer, or (iii) not requiring installation, will receive the standard GM Dealer Parts Warranty of 12 months from the date of purchase, parts only, regardless of miles. Associated Accessories are provided by independent companies and are not warranted by GM or its dealers. The independent company providing an Associated Accessory, rather than GM, is responsible for the safety and quality of Associated Accessories. For more details on exhaust system compliance with local and state noise ordinances, trailer weight rating calculations, cargo limitations, load trailer weight capacities and possible installation charges incurred with certain accessories, contact your local GM Dealer.

Shipping: All Ship to Home shipping from the GMC Accessories eStore will be via FedEx per listed deliver options.