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Used
2021 GMC Sierra 1500 trucks
for sale
near
Mission Bend, 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 AT4
Vehicle information
Features
Reviews
Nestor did a great work helping us with the purchase
Nestor did a great work helping us with the purchase process; without his help it would not have happened.
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...
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Very helpful team, willing to make business and willing
Very helpful team, willing to make business and willing to get you closer to your budget.very experienced sales person.clean vehicles.plenty vehicle inventory.
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 Base
Vehicle information
Features
Reviews
Justin was great!
Justin was great! Him and his team helped us find the perfect vehicle for our family
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 Denali
Vehicle information
Features
Reviews
Always a pleasure to have Aaron take care of my trucks
Always a pleasure to have Aaron take care of my trucks needs, he?s very helpful and always listens to my concerns, very glad he was able to help me out with my truck issues and get me on the schedule last minute. Very grateful for him being a part of the GMC team
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 AT4
Vehicle information
Features
Reviews
Antonio was very helpful and made the process very fast
Antonio was very helpful and made the process very fast and simple. Very convenient nnnnnmm Nikki nanny nmnnnm nmmmmm nnnnmm nmmmkkn nnkhjj njjhjkk njijjjkk hjj
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Immediate response.
Immediate response. Made an appointment to see the vehicle. Unfortunately, it sold before I arrived. However, the salesman did not make me drive over an hour to get there to find out it was gone. He called and texted to save me the trip. Really appreciate his respect of my time.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great experience!
Great experience! The sales process was easy and the dealership staff was very knowledgeable and was able to answer all my questions and make other suggestions.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very easy.
Very easy. Our sales guy, Jose N., was super helpful and funny. Overall it was a great experience. Would recommend this dealer to anyone. Thank you!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great selection of used luxury cars.
Great selection of used luxury cars. They have everything from Mercedes to aston martins. Will definitely be back
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Ozzie was great to work with and made my car buying
Ozzie was great to work with and made my car buying experience pleasant and easy. He's very professional, knowledgeable and helpful. I will definitely do business with him and EchoPark in the future.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very good service; recommended for their outstanding
Very good service; recommended for their outstanding service and attention to the client. Thank you
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I bought a new truck and the experience was great.
I bought a new truck and the experience was great. Gus was so nice and made sure everything went smoothly. Everyone I talked to was so helpful.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I recently bought a 2014 BMW X5 from Hue - he was very
I recently bought a 2014 BMW X5 from Hue - he was very attentive and helpful. I had a 3rd party inspection completed prior to purchasing and they gave good marks for the car. I have received many compliments on how new the car looks despite being over 10 years old. The owner, Kal, offered top-dollar for our trade-in and even offered us fair money for an older car. The purchase process went very smoothly with Trice, and the dealership was very responsive when I needed some help with a trailer hitch. Their collection of cars impressed me - they seem to only sell cars in excellent condition. I can definitely recommend America’s Auto Financial to anyone looking for a nicely used car!
Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Outstanding Experience with Amir at Helfman Ford!
Outstanding Experience with Amir at Helfman Ford! I recently purchased a 2024 Ford Expedition Max from Helfman Ford, and I have to give a huge shoutout to Amir for making the entire process seamless and enjoyable. From the moment I walked in, Amir was professional, knowledgeable, and genuinely invested in helping me find the right vehicle. He took the time to answer every question with clarity, and never once made me feel rushed or pressured. His attention to detail and commitment to customer satisfaction were truly impressive. What really stood out was Amir’s ability to make the experience feel personal. He listened to what I needed, offered thoughtful recommendations, and made sure I was comfortable every step of the way. The Expedition Max is an incredible vehicle, and Amir made sure I drove off the lot feeling confident and excited. If you're in the market for a new Ford, I highly recommend asking for Amir at Helfman Ford. You won’t just get a great car—you’ll get top-tier service from someone who genuinely cares.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Had so many bad experiences with supposed deals online
Had so many bad experiences with supposed deals online just be be lied to when arriving at the dealership. Mark was great to deal with and was up-front on pricing. We had a deal in place online and when arriving at the dealership, there were no games. He backed what he said and because of that we purchased a vehicle from him.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I called in regarding a special coverage for my vehicle
I called in regarding a special coverage for my vehicle and was connected with George Avila. George was very informative, polite, and a pleasure to work with. He scheduled me an appointment and communicated with me throughout the entire process. While having to take my car in to be serviced was an inconvenience, he made the process so seamless that I forgot it was even an issue to begin with. My vehicle repair was completed well before the estimate I was given, and he even gave me great advice on future repairs. I also learned that they price match tires which is why when I?m ready to replace them, I?m going to reach out to George and give them my business.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My experience was really great.
My experience was really great. Chris was really helpful he made sure we were taken care of the whole time , I will recommend him to my family & friends. Also I will be back in the future!!
GMC Certified
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience as always.
Great experience as always. Both Robert wolf and John Ivanic were great. From the time we walked in to the time we drove off with the new car, we were very happy.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $60,428 | 2 Good deals |
| 2025 GMC Sierra 1500 | $56,210 | 7 Great deals |
| 2024 GMC Sierra 1500 | $48,803 | 7 Great deals |
| 2023 GMC Sierra 1500 | $48,298 | 9 Good deals |
| 2022 GMC Sierra 1500 | $43,247 | 11 Good deals |
| 2020 GMC Sierra 1500 | $31,079 | 15 Good deals |
| 2019 GMC Sierra 1500 | $29,622 | 6 Good deals |
| 2018 GMC Sierra 1500 | $23,632 | 5 Great deals |
About the 2021 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 16
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
How much does the 2021 GMC Sierra 1500 cost?
The 2021 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 is $35,759, with pricing starting at $14,800.
What is the MPG of the 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 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 trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 1500 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.
Is the 2021 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
60% of drivers recommend this car
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
| Inventory price | |
| Starting at $55,900 | Starting at $54,700 |
| Combined MPG | |
| 16 | 17 |
| Engine | |
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Base (7 styles)
| Style | ||||||
|---|---|---|---|---|---|---|
| 4WD Double Cab 147" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Crew Cab 147" | 4WD Crew Cab 157" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
| Inventory price | ||||||
| Starting at $37,300 | Starting at $34,000 | Starting at $36,400 | Starting at $39,700 | Starting at $40,000 | Starting at $34,700 | Starting at $30,100 |
| Combined MPG | ||||||
| 19 | 21 | 21 | 19 | 19 | 16 | 16 |
| Engine | ||||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) |
Denali (3 styles)
| Style | ||
|---|---|---|
| 2WD Crew Cab 147" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali |
| Inventory price | ||
| Starting at $55,800 | Starting at $59,300 | Starting at $59,600 |
| Combined MPG | ||
| 17 | 18 | 18 |
| Engine | ||
| 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Elevation (7 styles)
| Style | ||||||
|---|---|---|---|---|---|---|
| 4WD Double Cab 147" Elevation w/3VL | 4WD Crew Cab 147" Elevation w/3VL | 4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 4WD Double Cab 147" Elevation w/3SB | 4WD Crew Cab 147" Elevation w/3SB | 2WD Crew Cab 147" Elevation |
| Inventory price | ||||||
| Starting at $44,600 | Starting at $47,200 | Starting at $49,300 | Starting at $43,100 | Starting at $46,400 | Starting at $49,000 | Starting at $45,700 |
| Combined MPG | ||||||
| 19 | 19 | 19 | 21 | 19 | 19 | 21 |
| Engine | ||||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (5 styles)
| Style | ||||
|---|---|---|---|---|
| 4WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Double Cab 147" SLE |
| Inventory price | ||||
| Starting at $47,100 | Starting at $47,400 | Starting at $41,400 | Starting at $43,800 | Starting at $44,700 |
| Combined MPG | ||||
| 19 | 19 | 21 | 21 | 19 |
| Engine | ||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
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.
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2021 GMC Sierra 1500 by body style
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
