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Used
2021 GMC Sierra 1500 AT4 trucks
for sale
near me
- 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
Walberg GMC did a great job and my salesman Jeff Tucker
Walberg GMC did a great job and my salesman Jeff Tucker was very helpful, pleasant and knowledgeable about my truck and any questions I had. I would definitely recommend this dealership to anyone that is interested in a new or used vehicle.
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 AT4
Vehicle information
Features
Reviews
Big thank you to the service department at Mark Wahlberg
Big thank you to the service department at Mark Wahlberg Chevrolet! I was in Columbus traveling 500 miles from home when the tire pressure light on my 2018 Silverado came on with a zero pressure indicator. The guys in service were empathetic to my situation and immediately started inspecting the tires and checking the sensors. Turns out the tires were fine. One of the sensors had gone bad. I had peace of mind to drive home eastern PA. I asked what I owed and was told no charge, glad they could help. Thanks again.
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...
GMC Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Easy to work with salesman Mark Gibson.
Easy to work with salesman Mark Gibson. Friendly, casual atmosphere. Quick attention to details. Easy transition to new vehicle. Previous experience there positive in sales and service.
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 AT4
Vehicle information
Features
Reviews
My experience at Ricart Used Cars on Billingsley was one
My experience at Ricart Used Cars on Billingsley was one of the best car buying experiences I’ve ever had. From the moment I arrived, I felt welcomed by the sales team. The entire process was smooth and hassle free, with no pressure in my decision. A big thank you to James and Andre they were incredibly welcoming and great to work with. Ricart Used Cars has earned a customer for life!
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.
There are 12 matching cars close to your year range.
Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Vehicle information
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Used
2023 GMC Sierra 1500 AT4
Vehicle information
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Used
2023 GMC Sierra 1500 AT4
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Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2019 GMC Sierra 1500 AT4
Vehicle information
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Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 AT4 | 4 Good deals | |
| 2025 GMC Sierra 1500 AT4 | 25 Great deals | |
| 2024 GMC Sierra 1500 AT4 | $57,845 | 64 Great deals |
| 2023 GMC Sierra 1500 AT4 | $51,939 | 41 Great deals |
| 2022 GMC Sierra 1500 AT4 | $46,466 | 35 Great deals |
| 2020 GMC Sierra 1500 AT4 | $39,166 | 24 Great deals |
| 2019 GMC Sierra 1500 AT4 | $35,448 | 15 Great deals |
About the 2021 GMC Sierra 1500 AT4
AT4 shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2021 GMC Sierra 1500 AT4 cost?
The 2021 GMC Sierra 1500 AT4 price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 AT4 is $40,018, with pricing starting at $28,527.
What is the MPG of the 2021 GMC Sierra 1500 AT4?
The 2021 GMC Sierra 1500 AT4 offers up to 15 MPG in city driving and 21 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 AT4?
The 2021 GMC Sierra 1500 AT4 compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 1500 AT4 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
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) |
*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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2021 SLT
65 Great Deals out of 472 listings starting at $18,905
-
GMC Sierra 1500 2021 Elevation
62 Great Deals out of 400 listings starting at $22,618
-
GMC Sierra 1500 2021 Denali
82 Great Deals out of 384 listings starting at $25,400
-
GMC Sierra 1500 2021 SLE
21 Great Deals out of 92 listings starting at $19,995
-
GMC Sierra 1500 2021 Base
9 Great Deals out of 41 listings starting at $13,999
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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.
