2021, Sierra, Four Wheel Drive, 5.3 Liter V8, Cloth Seats Our 2021 GMC Sierra 1500 Crew Cab 4X4 is a muscular workhorse that keeps you sitting tall in the saddle with a bold Onyx Black design! Motivated by a 5.3 Litre EcoTec3 V8 supplying 355hp matched with a 6 Speed Automatic transmission for easy capability. This Four Wheel Drive truck also has composed handling with or without a trailer, and it scores approximately 11.8L/100km on the highway. A mighty grille sets the tone for our Sierra's style, enhanced by LED lighting, black mirrors, chrome bumpers, a rear CornerStep, and a locking tailgate. A great place to get more done, our Sierra cabin comes with supportive cloth seats, a tilt-adjustable steering wheel, air conditioning, power accessories, a 12V front power outlet, and great technology for staying connected. It all starts with a 7-inch touchscreen that supports Android Auto, Apple CarPlay, Bluetooth, and a six-speaker sound system. Those are must-have features for modern drivers! GMC helps keep you out of harm's way on the job or off with a rearview camera, StabiliTrak stability/traction control, trailer-sway control, hill-start assist, a tire-pressure monitoring system, and a high-strength steel frame. Achieve more every day in our precisely engineered Sierra 1500.Why Dean Cooley GM? Dean Cooley GM in Dauphin is very proud to have been serving the parkland area since 1995. Selling brand new Chevrolet, Buick and GMC vehicles as well as certified pre-owned vehicles. Our financial experts are located in-house and can offer you the financing and leasing options that are best for you with fast, easy and approval in minutes. We have a state of the art service department with a collision and glass center with highly trained and experienced technicians to look after all of your repair needs. Our parts department is well stocked with all the parts you may need, as well as accessories and a great selection of tires. We also have a detail center, to look after cleaning your vehicle whenever necessary and make it look brand new again. Dean Cooley GM is proud to be a part of the parkland area and supporting many charities and organizations. So, for all of your automotive needs, stop down Dean Cooley GM, 1600 Main Street S. in Dauphin. Dealer permit #1693