The 2021 GMC Sierra 1500 is a full-sized, light-duty pickup truck. This truck is available in a wide array of body styles. There are numerous powertrain options to choose from too. The Sierra 1500 offers a unique tailgate that can be configured in a variety of ways to accomplish different jobs. It also offers great towing and hauling capabilities.
What’s New for 2021?
GMC has added a number of new trailer-assist features for 2021. One example is a Jack-Knife Alert. There is also a Trailer-Length Indicator to give drivers a better awareness of the trailer's proximity to other vehicles and objects. GMC's unique Multi-Pro Tailgate is now available for more trim levels of the Sierra 1500.
Body Styles and Configurations
All models of the 2021 GMC Sierra 1500 are available in 4X2 and 4X4 configurations with one exception. The AT4 trim level is only available with 4X4 all-wheel drive. There is a Regular Cab with two doors and a Double Cab with two additional small doors. The Crew Cab has four full-sized doors and a larger backseat area for passengers.
Available Trim Levels:
This trim level is one step up from the bare-bones base model. It gets you the GMC MultiPro Tailgate. This unique feature makes loading and unloading easier than ever before. The tailgate can be configured in six different ways for a variety of functions. This model also gets a locking rear differential for better off-road performance. Keyless access and start are added on as well as a 4G WiFi hotspot.
The Elevation model gets even more off-road-performance enhancements. One example is a 2-speed Autotrac Transfer Case. This is the first trim level where four-wheel drive is standard. Skid plates can be added on for some extra protection during off-road excursions. The Elevation features larger 20-inch aluminum wheels and a rear-window defogger.
Moving up to the SLT model gets you the GMC ProGrade Trailering System. The transmission system gets bumped up to a 10-speed automatic setup. This is the first trim level to offer the V8 engine as standard. The bumpers and exterior trim now come decked out in chrome. The driver's seat is upgraded to a 10-way power-adjustable model.
The off-road capabilities are improved once again with the AT4 trim package. There's an upgraded suspension system with a 2-inch factory lift on this model. The single-speed transfer case is swapped out for a double-speed model. This trim comes already equipped with the diesel engine for better low-end power and massive amounts of torque. The AT4 was designed for harder work and for hauling heavier loads.
The Denali is the luxury model in this lineup of trucks. It shuns the off-road-performance parts for more creature comforts. This model is equipped with a 5.3-liter V8 gasoline engine. On the inside of the Denali, you'll find a premium sound system by Bose. The infotainment system has a large 8-inch touchscreen display. It gets bucket seats up front with real leather trim and a leather-wrapped steering wheel.
Most trim levels come stock with a 4.3-liter V6 that makes 285 horsepower and 305 pound-feet of torque. There is also a turbocharged I4 that cranks out 310 horsepower. For the most horsepower, GMC offers a 5.3-liter V8 that produces 355. For the most torque, there's a V6 diesel that produces 460 pound-feet of torque. With the right setup, the Sierra 1500 can tow up to 9,700 pounds and haul a payload of up to 2,378 pounds.
Steering is accurate and responsive in the 2021 GMC Sierra 1500. The brakes are strong and provide good stopping power. Body roll is kept in check with some solid engineering and a good suspension system. The ride quality is relatively bump free here. The Sierra 1500 tackles curvy roads better than one would expect.
The V6 and V8 gasoline engines both get around 21 miles-per-gallon (mpg) on the highway according to EPA estimates. You should see between 15 to 16 mpg in the city. The turbocharged I4 fares the best among gasoline engines with ratings of 20 mpg in the city and 23 mpg on the highway. The diesel engine is the best overall with ratings of 23 mpg in the city and 30 mpg on the highway.
Every model of the 2021 GMC Sierra 1500 comes stock with six airbags. All of them also get Traction Control and Electronic Stability Control. There's a rear camera for better awareness. There are a number of driver assists and alerts to let you know when you're veering too far out of your lane or when a front collision is imminent. Automatic Emergency Braking kicks in when needed.
The 2021 GMC Sierra 1500 does everything that a truck in this class is supposed to do, and it does those things well. Its towing and hauling capabilities are on par with the competition. Performance and handling are quite impressive. The Sierra 1500 also offers an attractive design and a comfortable interior.
Formula for Calculating Dealer Cost:
Total Dealer Cost - Rebate and Incentive + Taxes / Licensing Fees = True Dealer Cost. (You can get rebates and incentives here.)
Note: All GMC Sierra 1500 4WD MSRP, invoice and dealer cost dollar figures above are approximate amounts. Prices are subject to change without notice.
A note about rebates: Most rebates are subtracted from the "on the road" figure. In most cases, you can have the rebate if you are arranging your own financing or you are paying cash. If you decide to use the manufacturer’s low interest financing, you do not usually get the rebate. Ask your dealer for details.