2026 GMC Sierra 1500 Gainesville TX
The 2026 GMC Sierra 1500 delivers a refined take on full-size truck capability, combining serious towing power, advanced technology, and premium craftsmanship across its lineup. With four engine choices, a maximum towing capacity of up to 13,200 pounds, and upscale features you won’t find on every pickup, the Sierra stands apart as a truck built for drivers who want strength and sophistication.
Whether you’re managing job sites around Cooke County, towing a boat up I-35, or simply want a truck that feels as good as it works, the Sierra 1500 rises to the challenge. From the practical Pro trim to the ultra-premium Denali Ultimate, there’s a Sierra designed to match how you drive.
Explore our new GMC inventory at Glenn Polk Auto in Gainesville, TX to see available Sierra 1500 models today.
2026 GMC Sierra 1500 Highlights
- Four engine options including gas V8 and turbo-diesel
- Up to 13,200 pounds of towing when properly equipped
- Available 3.0L Duramax® diesel with 495 lb-ft of torque
- Available 13.4-inch diagonal touchscreen with Google Built-In
- Available Super Cruise™ hands-free driving technology
- World’s-first six-function MultiPro Tailgate
- Available bed lengths: approximately 5.8-ft, 6.6-ft, or 8.2-ft
- Three cab styles: Regular Cab, Double Cab, Crew Cab
- Up to 14 available camera views for trailering and parking
- Eight trim levels from Pro to Denali Ultimate
- New exterior color options including Glacier White Tricoat and Coastal Dune
2026 GMC Sierra 1500 Specs and Features
The 2026 Sierra 1500 offers four well-rounded powertrains designed to meet different performance priorities. The standard 2.7L turbocharged engine produces 310 horsepower and an impressive 420 lb-ft of torque, delivering confident acceleration and everyday usability. The 5.3L V8 balances power and efficiency with 355 horsepower, making it a popular choice for drivers who tow regularly without needing maximum output.
For those who want top-end performance, the 6.2L V8 delivers 420 horsepower and now features a more aggressive exhaust note when Sport mode is activated, adding extra presence on the road. Drivers focused on torque and long-distance efficiency will appreciate the 3.0L Duramax turbo-diesel, which generates 305 horsepower and a class-leading 495 lb-ft of torque while enabling towing ratings up to 13,200 pounds. Each engine pairs with a smooth-shifting automatic transmission and is available with rear-wheel drive or four-wheel drive.
The Sierra 1500 is offered in Regular Cab, Double Cab, and Crew Cab configurations with multiple bed lengths to fit work and lifestyle needs. Its available carbon-fiber-reinforced cargo bed is lighter and stronger than steel, providing exceptional durability without added weight. The MultiPro Tailgate adds six distinct functions, including a bed step, load stop, and standing workstation—features designed to make real-world tasks easier.
Inside, the Sierra emphasizes comfort and technology. An available 13.4-inch touchscreen with Google Built-In provides access to navigation, voice commands, and apps, while wireless Apple CarPlay® and Android Auto™ come standard. Available Super Cruise hands-free driving assistance allows for relaxed highway driving on compatible roads, even while towing. Standard and available safety features include forward collision alert, automatic emergency braking, lane keep assist, HD surround vision, hitch guidance, transparent trailer view, and an advanced trailering system with tire pressure and temperature monitoring.
Experience the 2026 GMC Sierra 1500 in Gainesville
The GMC Sierra 1500 is engineered for drivers who expect more than basic capability from their truck. It delivers confident performance during the workweek and a composed, upscale ride on the weekend, making it an excellent choice for North Texas drivers who rely on their vehicle every day.
Visit Glenn Polk Auto in Gainesville, TX to see the 2026 Sierra 1500 in person. We’re proud to serve drivers from Muenster, Valley View, Saint Jo, Denton, Sherman, and surrounding communities. With multiple locations across North Texas and a large selection of GMC trucks available, we make it easy to find the Sierra configuration that fits your needs.
Why Buy Your GMC Sierra 1500 in Gainesville TX?
GMC trucks are known for professional-grade engineering, and Glenn Polk Auto has been helping Texas drivers find the right truck for decades. Located right off I-35, our Gainesville dealership is convenient for customers throughout Cooke County and beyond. Our knowledgeable sales team understands the Sierra lineup inside and out, helping you choose the right engine, cab style, and trailering equipment for how you actually use your truck. Our GM-certified service technicians are here long after the sale, keeping your Sierra running strong with expert maintenance and repair support.