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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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Used
2021 GMC Sierra 1500 SLT trucks
for sale
near
Carrollton, TX
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I’m looking and have been for a while.
I’m looking and have been for a while. I have found most car sells men don’t care what they say to sell a car. I was pleasantly impressed with a young man by the name of Luke Fox when showed me the cars and all that entails. When I make my final I hope I can buy it from Mr Fox. Thank you Luke
This truck has a jerk when changing gears sometimes.
This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.






Vehicle information
Features
Reviews
Jaymes Becker was extremely helpful, from the moment we
Jaymes Becker was extremely helpful, from the moment we walked in to the second we left. He was a huge huge help
Brake Pad Monitor
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...






Vehicle information
Features
Reviews
My experience have been great.
My experience have been great. Nakia and Josh are wonderful. Always there to be a helping hand. This was West Way Ford in Irving 100% Recommended.
Nicest, best performing truck I've ever owned
My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The dealership is awesome great people .
The dealership is awesome great people . I didn’t have to do a thing every thing was done by the comfort of my own home. I would recommend this dealership to anyone looking to purchase a car !
2021 GMC Sierra Denali
This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Good experience in dealing with Kerron at dallas lease
Good experience in dealing with Kerron at dallas lease returns, would Definitely buy another vehicle from him !
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The customer service there is great every time.
The customer service there is great every time. The employees go beyond to make sure your vehicle is serviced 100% with a professional and positive attitude. I?m thankful to have a Honda from David McDavid Frisco Tx.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great service, smooth process.
Great service, smooth process. I found the vehicle I wanted at a great price. Everyone was very friendly. I will certainly consider Grand Prairie for future purchases.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
We went in for an oil change and we’re very well taken
We went in for an oil change and we’re very well taken care of. We have a part that needs to be changed out and the service manager and service technician got the part ordered right then.






Vehicle information
Features
Reviews
Working with Ethan on my 1st ever online purchase
Working with Ethan on my 1st ever online purchase - was the 1st experience everyone wants! He was efficient with communications, but never pushy. He was flexible and open to any questions, while walking me through the process! Friendly, knowledgeable, and great to work with. The financing process with David's help was a breeze! The process was time efficient and pretty flawless. He was on point with communication and very knowledgeable. Still loving my new car 2 months later- it exactly what I wanted and drives like a dream!!!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Vary nice people, vary good at helping In explaining
Vary nice people, vary good at helping In explaining about the car,and the price. I was not able to go to get the car do to Family issues.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Prompt attendance and friendly staff.
Prompt attendance and friendly staff. I was in and out in under an hour. They always answer my questions.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Overall, Vandergriff Chevrolet service dept.
Overall, Vandergriff Chevrolet service dept. did an excellent job on my repair. With an extended warranty, the repairs cost nothing. But if I do critique anything, is the trying to get me to spend $1,200 in new battery cables. There was nothing wrong with them.






Vehicle information
Features
Reviews
My buying experience was seamless!
My buying experience was seamless! My salesperson Dylan did an exceptional job of facilitating my purchase experience!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great buying experience, much better than other
Great buying experience, much better than other dealerships for buying a vehicle. They didn't force us to add an extended warranty or other typical dealership nonsense.






GMC Certified
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Sewell is THE BEST...
My second vehicle from this dealership. My second Buick Enclave and it keeps getting better.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I was asked when I needed my truck back, I alex for 2pm.
I was asked when I needed my truck back, I alex for 2pm. I never got a call, and when I went to the dealership at 3pm because u didn't get a call back, I was told my recall was not done and it would be 45 minutes longer. Very disappointing the lack of communication. There service department was slow and I never got av return call. I was not able to wait so had to take my truck. I would continue to go to Ewing but they will not take the service plan I bought from freeman when I purchased my truck. Keep in mind we've purchased five trucks from freeman in the last two years.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Bought my car here and have it serviced here never felt
Bought my car here and have it serviced here never felt sold very happy with my purchase?the family is loving the new vehicle it rides super smooth






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Service department is top notch.
Service department is top notch..best of the best! Friendly yet professional, capably handled my every concern. Ride to/from my office very nice and appreciated touch!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The salesman, Joe Rodriguez, was very helpful and
The salesman, Joe Rodriguez, was very helpful and informative. I had no problem with communication. Everything was handled very Well. Everybody there was very professional. financing was excellent And I would definitely recommend this dealership. to anybody that was looking for a vehicle. Keep up the good work






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Omar was great!
Omar was great! Easy to work with, very knowledgeable, up front and honest. Would recommend Omar.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 SLT | $60,500 | |
2025 GMC Sierra 1500 SLT | $47,900 | |
2020 GMC Sierra 1500 SLT | $29,000 | 14 Good deals |
About the 2021 GMC Sierra 1500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)

How much does the 2021 GMC Sierra 1500 SLT cost?
The 2021 GMC Sierra 1500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 SLT is $38,660, with pricing starting at $15,980.
What is the MPG of the 2021 GMC Sierra 1500 SLT?
The 2021 GMC Sierra 1500 SLT offers up to 15 MPG in city driving and 22 MPG on the highway for a combined rating of 17 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 GMC Sierra 1500 SLT?
The 2021 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 1500 SLT reliable?
The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.
60% of drivers recommend this car
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
SLT (3 styles)
Style | ||
---|---|---|
4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
Inventory price | ||
Starting at $50,800 | Starting at $47,500 | Starting at $51,100 |
Combined MPG | ||
18 | 17 | 18 |
Engine | ||
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used 2021 GMC Sierra 1500 SLT by city
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2 Great Deals out of 21 listings starting at $26,902
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2 Great Deals out of 20 listings starting at $26,902
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2021 GMC Sierra 1500 SLT in Hackberry, TX
2 Great Deals out of 20 listings starting at $26,902
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2021 GMC Sierra 1500 SLT in University Park, TX
2 Great Deals out of 23 listings starting at $26,902
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