The 2026 GMC Sierra 1500 is a full-size pickup that genuinely delivers on all fronts—power, luxury, and a range of capabilities wrapped into one good looking package. Whether you need a dependable work truck or a refined daily driver, the Sierra 1500 has a trim level built for your lifestyle in Lawton, Oklahoma.
A Trim for Every Driver
The 2026 GMC Sierra 1500’s strength lies in its versatility across 8 different trims. From the entry-level Pro that keeps things practical and capable, to the lavish Denali Ultimate delivering a premium experience with 16-way power heated and ventilated front seats, a 12-speaker Bose® Premium Series audio system, and a signature Vader Chrome grille.
If you’re an off-road adventurer, the AT4 and AT4X trims are purpose-built for the challenge. The AT4X includes front and rear electronic locking differentials which no other vehicle in its class offers, Multimatic DSSV™ dampers, boron steel American Expedition Vehicles-branded skid plates, and a factory-installed 2” suspension lift. For the extreme enthusiast, the AT4X AEV Edition shows off AEV racing Salta wheels, exclusive detailing, and off-road rocker panels.
Engine Options Built for Serious Stuff
The 2026 GMC Sierra 1500 is a champ when it comes to powertrain options, starting with the standard TurboMax™ engine. It delivers 310 hp and Best-in-Class standard torque of 430 lbs.-ft., and can tow up to 9,400 lbs.
The available Duramax® 3.0L Turbo-Diesel engine unlocks a max towing capacity of lbs., while the 5.3L V8 option gives you a well-rounded 355 hp and 383 lbs.-ft. of torque. Finally, the ferocious 6.2L V8 roars with 420 hp and 460 lbs.-ft. of torque for drivers who want even more grunt on demand. No matter which engine you choose, the Sierra 1500 is built to handle demanding tasks with confidence.
Technology That Keeps You Connected
The 2026 GMC Sierra 1500’s technology features are designed to make every drive smarter and more enjoyable. Available Super Cruise® hands-free driver assistance technology lets you relax a little behind the wheel on long hauls when on the growing network of supported roads. It comes standard on the Denali Ultimate and is available on the Denali trim.
Inside, you’ll have access to over 40 inches of combined driver-focused digital displays—the most in its class. This includes the available 13.4” Premium GMC Infotainment Touchscreen with Google Built-in, which lets you use voice commands for Google Assistant, Google Maps, and Google Play—all without need of your phone.
Towing tech is exceptionally impressive, with the Sierra 1500 now giving you up to 14 camera views like Transparent Trailer View, Inside Trailer View, and Picture-in-Picture Side View. The available ProGrade™ Trailering System gives you integrated tools to streamline the hitching and towing process, so you can tow with greater control.
Interior Comfort That Goes the Distance
The cabin of the 2026 GMC Sierra 1500 is where power meets refinement. The Sierra 1500 offers Best-in-Class standard crew cab front head and legroom, giving everyone plenty of space to stretch out. Available leather seating with heating and ventilation and authentic wood trim on Denali models bring a level of interior quality that feels more premium than expected from a full-size truck. The AT4X gives you similar indulgences with exclusive interior finishes in keeping with its rugged character. Smart storage solutions throughout the cabin mean you can carry work supplies or weekend gear without sacrificing comfort.
Built to Handle What Life Throws at You
From the available CarbonPro composite bed to bold trim-specific grille designs, the exterior of the 2026 GMC Sierra 1500 makes a strong impression. The available GMC MultiPro™ Tailgate offers 6 unique functions, making loading and unloading significantly easier. A suite of safety features, including available Front and Rear Park Assist and HD Surround Vision, adds everyday peace of mind.
Visit Southwest Buick GMC of Lawton
The 2026 GMC Sierra 1500 brings together power, luxury, and capability in a package that genuinely covers every base. From the hard-working Pro to the refined Denali Ultimate, there is a Sierra 1500 built for the way you live and work. Stop by Southwest Buick GMC of Lawton or visit southwestbuickgmc.com to explore available inventory and find the right trim for you.
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