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Used
2021 GMC Sierra 1500 trucks
for sale
near
Lower Southampton, 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 Elevation
Vehicle information
Features
Reviews
Very easy purchase.
Very easy purchase. Highly recommend this Autolenders location. Car has been great so far. Had a small issue after leaving the lot and they fixed it for free!
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
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Reviews
I was treated great at the dealership.
I was treated great at the dealership. Sales,finance and delivery of my car went very good. I know what great service is,as I was a cars salesman for 15 years. They do it right .I would recommend dealing with this dealership
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
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.
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 Elevation
Vehicle information
Features
Reviews
Joshua and his team are my go-to guys for not only car
Joshua and his team are my go-to guys for not only car purchasing but continued car maintenance and inquiry. They are honest, trustworthy, and their dedication to providing a positive consumer experience and customer satisfaction are unmatched. Thanks Joshua Motor Car Company!
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
Very professional staff!!
submitted an application and received a call and an email with a detailed history of the 2013 Buick Lacrosse a copy of the carfax report, which was excellent, within 30 minutes!! I had great credit at one time but went through a divorce and a bankruptcy which hurt my credit score. This was not even an issue , I am approved and taking delivery of my new car and I can't explain how happy and grateful I am to JAY and the entire staff at Liberty Imports!! How many times can you say THANK YOU!!?? Obviously not nearly enough, THANK YOU LIBERTY IMPORTS YOU ARE THE SECOND TO NONE!!
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 Denali
Vehicle information
Features
Reviews
High Quality Service, High Quality Vehicles
Great customer service, very welcoming to the guests. Quick and easy process got in & out in a timely manner. All the vehicles are clean and in pristine condition, will definitely check them out again in the future!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
im not new to buying cars.
im not new to buying cars. ive owned hundreds and currently own 6 cars , 6 trucks and 3 motercycles. i however am new to the excellent service I received. Ill never buy a car from anywhere else. Bergeys team were the most knowledgeable and and easy to deal with ever. Then theres the deal part. no other place could even come close to what they came up with for me. if I had to describe everything in brief , " like a well oiled machine" When It came time to show me how everything works 3 of the Bergeys team came out. and all my questions was answered. I made the best choice ever Going to Bergeys GMC. The kind of place where you can stop anytime with questions and its not a bother






Used
2021 GMC Sierra 1500 SLT
Vehicle information
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Reviews
Great experience
Great buying experience with Eric & the team at Star. I love my new GMC Canyon. They treated me with respect, no pressure and followed up after the sale to make sure I was and am happy.






GMC Certified
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great experience from start to finish.
Great experience from start to finish. Had everything ready for me when we arrived. Car was started and heated up for us to test drove.






GMC Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
It was easy and pleasant to deal with Mary Beth.
It was easy and pleasant to deal with Mary Beth. There was no pressure to make a hasty purchase. She was able to locate the exact car that I was looking for.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I am very pleased with the service performed.
I am very pleased with the service performed. Knowledgeable and professional staff. Great recommendations on extending the life of my truck. I am very satisfied and will return again.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Overall, happy with the service.
Overall, happy with the service. Would have been 5 stars, however, my only complaint was the Parts Dept wouldn't match the discounted cost for 4 TPMS sensors. Originally they were charging $135 per sensor, while Chevrolet's website price was under $107 per sensor, which they did match. However, the online purchase was discounted by 20%, which would reduce the price per sensor to less than $87 each but they wouldn't match that price even though it said to pick them up at Burlington Chevrolet.






Used
2021 GMC Sierra 1500 Denali
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






GMC Certified
2021 GMC Sierra 1500 Elevation
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
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Reviews
Good Used Honda
With everything going on in this world it was awesome to deal with a dealership that made my family and I feel welcomed and appreciated. Robert D. was very caring and helpful. He was patient and did not rush the deal and stayed an hour past his time. Thank you and continue to keep your professional work ethics.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great Experience
I purchased a Q5 which so far I happy with, my experience was very nice...Claude was my salesman it was a pleasure. Great customer service, very helpful, made sure I we were hydrated. I also dealt with Pete, Johnathon all Awesome! I would like to thank everyone for all your hard work to get me into this car. I will send all my family and friends to Ardmore Acura in Pa.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
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Reviews
Sold!
Bobby Roustas was very knowledgeable and did his best to sell the car. It was a painless experience and we weren't there all day. He's a nice New Yorker. Thanks Bobby.

Used
2021 GMC Sierra 1500 Elevation
Vehicle information
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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!!

Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Excel Auto Lounge is an auto center with good conditions
Excel Auto Lounge is an auto center with good conditions and friendly staff and fast service.

Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
the service was A1
They treated me with respect and helped me find the perfect used car that fit my budget. I give them a huge thumbs up in making the process easy as possible
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Used
2021 GMC Sierra 1500 Elevation
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Used
2021 GMC Sierra 1500 SLT
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GMC Certified
2021 GMC Sierra 1500 SLT
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Used
2021 GMC Sierra 1500 AT4
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Certified
2021 GMC Sierra 1500 AT4
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Used
2021 GMC Sierra 1500 Elevation
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Used
2021 GMC Sierra 1500 AT4
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Used
2021 GMC Sierra 1500 Denali
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Used
2021 GMC Sierra 1500 Denali
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GMC Sierra 1500 prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Sierra 1500 | $60,118 | |
2025 GMC Sierra 1500 | $60,962 | 1 Good deal |
2024 GMC Sierra 1500 | $56,746 | 5 Great deals |
2023 GMC Sierra 1500 | $47,887 | 13 Good deals |
2022 GMC Sierra 1500 | $46,006 | 12 Good deals |
2019 GMC Sierra 1500 | $31,073 | 8 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 $37,925, with pricing starting at $13,999.
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.