2021 GMC Sierra 1500

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2021 GMC Sierra 1500
2021 GMC Sierra 1500

Key specs

Base trim shown


6 trims

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2021 GMC Sierra 1500 trim comparison will help you decide.

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 4.5
  • Interior design 4.4
  • Performance 4.3
  • Value for the money 4.1
  • Exterior styling 4.4
  • Reliability 4.1

Most recent consumer reviews



My 2021 GMC Sierra burned to the ground in my driveway and exploded next to my house 5 minutes after I got out of it. Purchased at Blaise Alexander in Mansfield Pa



The review by drgonzo of his GMC Sierra sounded exactly like what we experienced with our 2021 Sierra SLT. It drove beautifully until we hit 8,000 miles when our lifters suddenly went out and needed replaced. Within weeks our transmission started to spontaneously downshift enough to jerk us forward. That was repaired then same thing happened several weeks later. Transmission replaced then same thing happened several weeks later. Special GM engineer sent in who recommended control module be replaced. DAYS later same sudden downshifting occurred even worse. Truck declared a lemon, GM to replace truck but we have to pay difference. Now we have the impossible task of finding a 2021 satin steel slt CC/short box so our $4000 camper shell (painted satin steel) will fit. I found ONE that is priced $6,000 more than what we paid but it may sell before GM finds us a “host” dealership willing to to do negotiating. Oh, and we will be dinged a usage fee for the 8,000 miles we put on truck.


Professional Grade Garbage

The only thing more disappointing than this vehicle is the customer service at General Motors. I bought a brand-new GMC Sierra 1500 Elevation pickup with the 5.3L engine and have had issues with it from the beginning. On cold mornings the transmission slips when accelerating. Luckily that goes away once the truck warms up. At 8200 miles, lifters on the right side of the engine failed, taking out a push rod and rocker arm. I was informed by the dealership that this was a known issue at GM, but no recall had been issued. If the truck had less than 8000 miles on it, GM would have authorized them to replace the lifters on both sides of the engine. Because GM is cheap and does not do the right thing for their customers, the opposite side of the engine experienced the same failure at the 14,000-mile mark. Also, the alignment was never right on the truck from day one, and by the 12,000-mile mark the front tires had worn so unevenly that they wouldn't pass state inspection. GM refuses to pay for the alignment, or the tires, because I took it to a reputable tire shop rather than the dealership. I would advise anyone to avoid these trucks at all costs. Don't make the same mistake that I did. Be smart and avoid all GM products.

See all 40 consumer reviews


New car and Certified Pre-Owned programs by GMC
New car program benefits
36 months/36,000 miles
36 months/36,000 miles
60 months/60,000 miles
Roadside assistance
60 months/60,000 miles
Certified Pre-Owned program benefits
Maximum age/mileage
5 model years or newer/up to 75,000 miles
Basic warranty terms
12 months/12,000 miles bumper-to-bumper original warranty, then may continue to 6 years/100,000 miles limited (depending on variables)
6 years/100,000 miles
Dealer certification required
172-point inspection
Roadside assistance
View all cpo program details

Have questions about warranties or CPO programs?

Compare the competitors


Chevrolet Silverado 1500


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Chevrolet Silverado 1500 Limited


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GMC Sierra 1500 Limited


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