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Used
2021 GMC Sierra 1500 trucks
for sale
near
Spring Mount, PA
- 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 Base
Vehicle information
Features
Reviews
Great service
We took our newly purchased Toyota Prius to VA for a shake down cruise. Found some minor issues. Called Chris. Brought the car in, they gave us a loaner, then knocked out the work. Thanks to ALL! Wife and I are happy!
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
Our experience with Chapman Ford of Horsham was our
Our experience with Chapman Ford of Horsham was our second time dealing with a Chapman Auto Group Dealership. Both experiences were fantastic! We placed our order with Ashlie for a 2024 Ford F150. She was very helpful throughout the process and kept us up to date on our order status. Once the truck arrived at the dealership, we worked with John to get the lease deal figured out. He was very responsive and knowledgeable. When we arrived to pick up the truck, we worked with Liz who also handled our Grand Cherokee pick up and is always a pleasure to work with. Steve in sales helped to find a last minute offer from Ford and saved us some additional money on the truck which was very much appreciated! Finally, Kyle assisted in finalizing the financing. He was very knowledgeable and efficient and was able to answer any questions we had. The process was very quick but did not feel rushed. Overall, our experiences with Chapman dealerships have been nothing short of exceptional. The dedication and professionalism of Ashlie, John, Liz, Kyle, Steve, and the entire team show their commitment to a great buying experience. We have full confidence in recommending Chapman Ford of Horsham to friends and family, knowing that they will receive the same outstanding service that we have experienced firsthand.
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 Denali
Vehicle information
Features
Reviews
Ellis was great and very personal.
Ellis was great and very personal. He answered all my questions he could.He later found the answer to my other questions. I would gladly work with him again.
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 Denali
Vehicle information
Features
Reviews
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
Justin wright
I came in not knowing what I wanted at 1th then this sale lady I for got her name she was very nice In help me out I love my car and thanks y’all so much
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 SLE
Vehicle information
Reviews
best all round dealer
I personally own 10 cars including a Ferrari and Bentley. I love my Shelby Mustang. John Kennedy Ford treats me even better than the "high end"dealers! Kevin Stuski is the man to ask for when you go






GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Eric is service is great.
Eric is service is great. He asks before work is done. He will speak in layman's terms. Always helpful! Always works with us to get us to work.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I scheduled the inspection of my car but was informed it
I scheduled the inspection of my car but was informed it wouldn't pass due to the condition of the frame. I spoke with Jared Homan about a used car. There was no pressure just information on the only used Terrain that was available. Later that day I talked to Jared and purchased the car.






GMC Certified
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
James Ogle and AB made the car buying experience a
James Ogle and AB made the car buying experience a positive one. Thanks to both!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My experience overall was amazing!
My experience overall was amazing! Carl Vorhauer and his team (Eric, Jeff and Evan) were very knowledgeable and friendly, will definitely recommend buying from these folks and look forward to working with them on future purchases!!






GMC Certified
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Very smooth buying.
I’ve recently bought a 2023 Yukon from star. I made a appt with Colleen to see the car. When I got there I was greeted by her and then she introduced me to Kyle. He walked me right up to the car a had the appt on. Keys were even in his hand so I didn’t have to wait. I took it for a drive and fell in love with it. He knew the Yukon in and out. Then when it came to financing the car Justin in finance made it very easy. He gave me a couple options to make sure I was covered if I wanted. Out of every car I’ve ever bought (I’m almost 50) I’ve never been so relaxed start to finish with my purchase. I’ve even been back to ask questions on things I’ve forgot and never had to wait to get an answer. You can definitely tell this dealership is family owned . Way to go team. Thanks Star of Quakertown






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Everyone is super nice and made our experience easy and
Everyone is super nice and made our experience easy and quick. We happened to be down the road when the car battery died and help was provided right away!!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
A big thank you to Dom, Heather, and the financing team
A big thank you to Dom, Heather, and the financing team at Star Of Quakertown. They made my car buying experience just wonderful. They went above and beyond to get me my vehicle and I'm so happy with it. Even thought they were an hour and a half away from me, they were just awesome. Very welcoming and I definitely recommend them. I'd drive another hour and a half to get another vehicle from them. Great job guys! Keep up the great work!!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Service
My car was over heating again this time I had a tech named Dylan who took the time to find out what was really wrong with it and figured it out thank you Dylan I give you 5 stars

Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Great place to buy
Great place to buy a used car. The dealer was great, helped us get our family a new minivan. I would recommend this place to everybody and I would buy from them again.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
The absolute best experience I’ve ever had buying a
The absolute best experience I’ve ever had buying a vehicle. No pressure sales or games. Fair prices and trade in values. Taylor listened to what I wanted and was personable, quick, efficient, and just a great guy. Same with the finance guy (sorry I forgot his name). The vehicle I was interested in was already washed , had gas and waiting for us. I will never go anywhere else.
There are 20 matching cars close to your year range.






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2023 GMC Sierra 1500 AT4X
Vehicle information
Features






Used
2022 GMC Sierra 1500 SLT
Vehicle information
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Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2019 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features






Certified
2020 GMC Sierra 1500 Denali
Vehicle information
Features





Used
2022 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features






GMC Certified
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2022 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2022 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features






Certified
2022 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features






Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features






GMC Certified
2022 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $40,675 | |
2025 GMC Sierra 1500 | $35,696 | |
2024 GMC Sierra 1500 | $40,912 | 7 Good deals |
2023 GMC Sierra 1500 | $34,277 | 5 Great deals |
2022 GMC Sierra 1500 | $33,488 | 13 Good deals |
2020 GMC Sierra 1500 | $30,449 | 9 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 $38,223, with pricing starting at $13,980.
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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Research the 2021 GMC Sierra 1500
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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.