Used 2021 GMC Sierra 1500 SLT

Description for 2021 GMC Sierra 1500 SLT Crew Cab

The 2021 GMC Sierra 1500 SLT delivers the perfect combination of bold design, advanced technology, and professional-grade capability, making it one of the most refined full-size pickups on the road. Finished in a commanding exterior color that highlights its strong proportions and distinctive styling, the Sierra SLT features GMC's signature chrome-accented grille, LED reflector headlamps, and C-shaped LED daytime running lights that define its confident presence. Chrome bumpers, mirror caps, and window trim add a premium touch, while 18-inch machined aluminum wheels, body-colored fender moldings, and the GMC MultiPro Tailgate enhance both functionality and curb appeal. Its sculpted lines, muscular stance, and detailed craftsmanship make the Sierra SLT as striking as it is capable.

Under the hood, the 2021 Sierra 1500 SLT offers multiple robust powertrain options, with the standard 5.3-liter EcoTec3 V8 engine producing 355 horsepower and 383 lb-ft of torque, paired with a smooth-shifting 10-speed automatic transmission. For drivers who demand maximum strength, the available 6.2-liter V8 delivers 420 horsepower and 460 lb-ft of torque, while the 3.0-liter Duramax Turbo-Diesel inline-six offers exceptional torque and efficiency. With a maximum towing capacity of up to 11,800 pounds when properly equipped, the Sierra SLT is engineered to handle tough jobs effortlessly. Available four-wheel drive, a two-speed transfer case, and the Traction Select System allow for confident performance in all driving conditions, from rugged worksites to long highway hauls.

Inside, the 2021 Sierra SLT offers a luxurious and spacious cabin designed for premium comfort and everyday practicality. The interior features Jet Black leather-appointed seating with contrast stitching, soft-touch materials, and authentic aluminum trim throughout. Heated and ventilated front seats, a heated steering wheel, and dual-zone automatic climate control make every drive enjoyable, regardless of the season. The driver's seat features 10-way power adjustability with memory settings, while the Crew Cab configuration provides generous rear-seat legroom for passengers. Clever storage solutions, including rear under-seat compartments and a large center console, offer practicality without compromising style.

Technology in the Sierra SLT is intuitive and cutting-edge, centered around the 8-inch GMC Infotainment System touchscreen with wireless Apple CarPlay, Android Auto, Bluetooth, and voice-activated navigation. The 8-inch digital driver information display keeps key vehicle data front and center, while the available Head-Up Display projects essential information directly onto the windshield. A premium Bose sound system delivers immersive audio quality, and additional amenities like wireless charging, multiple USB-C ports, and a Wi-Fi hotspot ensure you stay connected and powered on the go. The MultiPro Tailgate's six unique functions, paired with an available spray-in bedliner and LED cargo lighting, make loading and hauling easier than ever.

Safety and driver assistance are priorities in the 2021 Sierra SLT, with a suite of advanced systems designed to enhance confidence behind the wheel. GMC Pro Safety includes Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking, Lane Keep Assist with Lane Departure Warning, Following Distance Indicator, and IntelliBeam automatic high beams. Available features such as Adaptive Cruise Control, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, and HD Surround Vision further elevate awareness and security. The Sierra's high-strength steel frame and comprehensive airbag system provide durable protection for all occupants.

The 2021 GMC Sierra 1500 SLT perfectly blends strength, sophistication, and smart engineering. Its powerful engine lineup, premium interior, and advanced technology make it a standout choice for drivers who want more than just a work truck-it's a statement of capability and class. Whether towing, hauling, or cruising in comfort, the Sierra SLT delivers the reliability, refinement, and bold presence that define GMC's professional-grade promise.

Walt Massey dealerships proudly include a complimentary 3-month/3,000-mile powertrain warranty on eligible used vehicles through Owner Services, Inc. This coverage protects major components such as the engine, transmission, and drive axle, and includes towing assistance and rental reimbursement for unexpected breakdowns-providing lasting confidence long after you drive off the lot.