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Used
2021 GMC Sierra 1500 trucks
for sale
near
Randolph AFB, 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
It took a little too much time and effort to get in
It took a little too much time and effort to get in contact with your service department through the telephone it took 5 calls to get through.
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.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great experience!
Great experience! Salesman Nate, was superior! We are very pleased with our purchase! Many thanks to Ancira!
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
Had an enjoyable experience with sales and financing.
Had an enjoyable experience with sales and financing. Thank you to my sales person Jacob Cano, who was very patient with me and accommodating and financial rep Kameron.Excellect shopping experience!
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
Nice experience.
Nice experience. Good service. Sales personnel were helpful and friendly. The individual who explained to us all the new technology was knowledgeable and very patient. Overall, a positive experience.
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
Car service was goof
The service was good and the financing was excellent overall the visit was good and the staff was very friendly and helping I would go back
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!
Certified
2021 GMC Sierra 1500 DENALI
Vehicle information
Reviews
Serviced Vehicle
Quick & professional. No hard sales pressure. Covered all the services schedules.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I recently had a truly outstanding experience at the
I recently had a truly outstanding experience at the dealership, thanks to the exceptional service provided by Jordan David. He took the time to understand exactly what I was looking for, answered all my questions with patience, and made the entire process feel effortless. His knowledge, honesty, and attention to detail built immediate trust, turning what can often be a stressful experience into an enjoyable one.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I had a good experience making a deal with Mr.
I had a good experience making a deal with Mr. Arony & Isidro, both have helped me with all the questions I had. I will really recommend them to my friends and relatives who want to purchase a GMC.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
John consistently provides exceptional service by
John consistently provides exceptional service by attentively listening to our concerns responding with patience and resolving issues efficiently. I will definitely recommend John to my friends and family.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Pleasant experience sales person was helpful I?
Pleasant experience sales person was helpful I?m very knowledgeable about making sure I was comfortable with the car before I left setting up the Bluetooth on star.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Hassle-free buying and excellent customer service.
Hassle-free buying and excellent customer service. Best online shopping experience. Transparent pricing. San Antonio Buick GMC is the BEST!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I NEEDED TO REPLACE MY 17 YEAR OLD CAR AND WAS
I NEEDED TO REPLACE MY 17 YEAR OLD CAR AND WAS OVERWHELMED WITH ALL THE DIFFERENT DEALERS IN NEW BRAUNFELS. I AM A SENIOR, SENIOR CITIZEN AND WAS GRATEFUL I FOUND CHAMPION NISSAN. SAL REACHED OUT TO ME AND WE SET UP AN APPOINTMENT. HE KNEW WHAT I WAS LOOKING FOR AS FAR AS MODEL, PRICE, PAYMENT, ETC. AND HE HAD THE PERFECT CAR WAITING FOR ME. I AM SO HAPPY WITH MY CHERRY RED NISSAN ROGUE AND HOPE TO DRIVE IT FOR 17 YEARS LIKE MY PREVIOUS CAR! THE PEOPLE WERE SO FRIENDLY, AND I FELT LIKE I CAME HOME. I AM SO HAPPY WITH MY PURCHASE AND I HAVE SAL, ANTHONY AND GARRETT TO THANK I ALREADY HAVE RECOMMENDED CHAMPION NISSAN TO CO-WORKERS, FAMILY AND FRIENDS FOR THEIR NEXT VEHICLE. MY CHRISTMAS GIFT CAME EARLY VIA CHAMPION. M ANDERSON
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
It was very professional and the sales person David Hill
It was very professional and the sales person David Hill was very friendly and helpful. He's very good at helping me understand the process. It great place.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great place to purchase From
Superquick and organized buying process ....I was in and out in under 2 1/2 hours from selection to closing
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I was taking care of right away even when I was early,
I was taking care of right away even when I was early, the wait was not terrible. My service advisor was friendly, I would recommend this place again.
There are 20 matching cars close to your year range.
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
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2022 GMC Sierra 1500 AT4X
Vehicle information
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2019 GMC Sierra 1500 SLT
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2023 GMC Sierra 1500 Denali Ultimate
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2023 GMC Sierra 1500 AT4
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Used
2023 GMC Sierra 1500 SLT
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2020 GMC Sierra 1500 Denali
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2019 GMC Sierra 1500 SLT
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Certified
2022 GMC Sierra 1500 SLT
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2023 GMC Sierra 1500 Denali Ultimate
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2019 GMC Sierra 1500 Denali
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Certified
2022 GMC Sierra 1500 Denali
Vehicle information
Features
Certified
2023 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2022 GMC Sierra 1500 Denali
Vehicle information
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2022 GMC Sierra 1500 AT4X
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $61,525 | 2 Good deals |
| 2025 GMC Sierra 1500 | $52,961 | 3 Good deals |
| 2024 GMC Sierra 1500 | $51,287 | 10 Great deals |
| 2023 GMC Sierra 1500 | $50,479 | 4 Good deals |
| 2022 GMC Sierra 1500 | $47,887 | 8 Good deals |
| 2020 GMC Sierra 1500 | $31,618 | 6 Good 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 $35,765, 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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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.
