2026 GMC Sierra 1500 For Sale in McAllen, TX

The 2026 GMC Sierra 1500 delivers stellar performance, advanced technology, and practical design for demanding truck buyers in McAllen, TX, and the surrounding Rio Grande Valley. GMC has engineered this full-size pickup to handle tough jobs while providing a premium driving experience. Whether you're hauling equipment to a worksite or towing jet skis to the lake, the new GMC Sierra 1500 is up to the challenge.

Performance

GMC offers Edinburg, TX drivers the 2026 Sierra 1500 with a range of powerful engine options. The standard 2.7-liter TurboMax produces a hefty 310 horsepower and 430 pound-feet of torque. An available 3.0-liter inline-six Duramax® turbodiesel cranks out 305 horsepower and a massive 495 pound-feet of torque for easier towing. Step up to the mighty 5.3-liter V8 with Dynamic Fuel Management for additional muscle, delivering 420 horsepower and 460 pound-feet of torque. Properly equipped, the Sierra 1500 can tow up to 13,300 pounds and haul up to 2,240 pounds of payload. An available 10-speed automatic transmission and advanced trailering technologies make pulling heavy loads much easier.

Design

Inside the spacious crew cab, premium materials and attention to detail create an inviting environment. The GMC Sierra's versatile bed has plenty of cargo space and a multi-function GMC MultiPro tailgate for enhanced loading solutions. Available on select trims, the innovative CarbonPro composite bed provides outstanding dent, scratch, and corrosion resistance at job sites around Alamo, TX.

Technology

An available 13.4-inch touchscreen with wireless Apple CarPlay® and Android Auto™ compatibility keeps you seamlessly connected. The Sierra 1500 offers a comprehensive suite of active safety features to enhance your awareness behind the wheel. Systems like Lane Keep Assist with Lane Departure Warning, Automatic Emergency Braking, and Front Pedestrian Detection provide an extra layer of protection.

Trim Levels

GMC offers San Juan, TX buyers the 2026 Sierra 1500 in a range of well-equipped trim levels. The Pro, SLE, and Elevation trims provide a strong foundation of features. At the same time, the SLT adds the MultiPro tailgate, a power-adjustable passenger seat, driver's seat memory settings, and leather upholstery. If you're up for adventure, the AT4 has a two-speed transfer case, an upgraded suspension, a heavy-duty air filter, hill descent control, a two-inch lift kit, and skid plates.

GMC equips the upscale Denali model with an adaptive suspension, ventilated front bucket seats, heated rear seats, and a seven-speaker Bose audio system. The AT4X has specialized off-road dampers, all-terrain tires, and locking front and rear differentials. At the top of the ladder, the Sierra Denali Ultimate has nearly all Sierra 1500's features, including 22-inch wheels and power sidesteps.

Test Drive the Sierra 1500 at South Texas Buick GMC

Experience the tremendous capability and practical features of the 2026 GMC Sierra 1500 with a test drive at South Texas Buick GMC in McAllen. Visit our convenient location to explore our extensive inventory of Sierra 1500 pickups and take advantage of competitive financing offers.