2026 GMC Sierra 2500 HD AT4X

Prices include all available incentives, and may require financing with GM Financial. Tax, title, license, and $899 admin / processing fees (unless itemized above) New vehicle prices may change with special leases or financing rates and may include GM Owner Loyalty or Conquest Cash. Some customers may not qualify for all rebates. Vehicles equipped with additional accessories may not be included in reduced price. Cannot be combined with any other pricing offers. Please contact or visit Thompson Buick GMC Cadillac for more details. See dealer for details. Tax, tag, title, license and $899 dealer administration fee (unless itemized above) are extra. While we make every effort to ensure the data listed here is correct, there may be instances where some of the factory rebates, incentives, options or vehicle features may be listed incorrectly as we get data from multiple data sources. PLEASE MAKE SURE to confirm the details of this vehicle (such as what factory rebates you may or may not qualify for) with the dealer to ensure its accuracy. Dealer cannot be held liable for data that is listed incorrectly. Displayed MPG is based on applicable EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.

MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the “Fuel Economy” portion of the EPA’s website for details, including a MPG recalculation tool).