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Used
2020 GMC Sierra 1500 trucks
for sale
near
Firestone, CO
- 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
2020 GMC Sierra 1500 SLT
Used
2020 GMC Sierra 1500 Denali
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I had a great experience purchasing my used car thanks to
I had a great experience purchasing my used car thanks to Juan. He was professional, honest, and very helpful throughout the process. Everything went smoothly, and I really appreciated his transparency. Highly recommend working with him!
Short turn radius
I purchased pre-owned 2020 1500 SLT in February of this year. The truck rides comfortable and has plenty of room front and rear. My and I both enjoy it. My only drawback is the turn radius (lock to lock). It lacks compared to my wife's 2018 Yukon SLT, or the 2016 Ram I traded in. Have to many times maneuver twice to park it going forward or reverse. Otherwise happy with our purchase.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Excellent Service for a new car.
Excellent Service for a new car. No traditional dealership hassles and I got a car much cheaper than I was quoted through a local dealer. Also got a great trade in price. I would definitely recommend using AutoSearch USA. I will continue buying all my cars here.
Great Truck
I did my research and test drove several models. The GMC 1500 Duramax does everything I want it to do and more. Great gas milage, nice power and very comfortable.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Best truck we have owned!
Truck meets my and my wife's needs. She loves her and I do to! Love sport mode and the tow hail mode. Rides like a Cadillac!
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great experience
Where to start from. The beginning to the end it was overall the best car experience. I called Maaliki motors on the phone and ed listen to what I am looking for and made me feel comfortable over the phone very friendly and honest. When I came in we test drove the car and it was very nice . When it came down to pricing and the real deal Frank was very kind and know what he is doing. Showed me all the numbers and got me what I asked for and match what I have from my credit union. If I can leave 10 star I would. Honest ppl to deal with.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
No-hassle purchase
I purchased a 2001 Toyota 4-runner from Levi's this week - I found everyone there very friendly and helpful. They had no objection to my taking the car to my mechanic to be checked out - even though we were gone over an hour! when we got back, I was out the door with my SUV in less than an hour! After I bought my Toyota from them, I read some bad reviews that they had received - looks to me like someone didn't have the car checked out before purchase and had problems - that's the buyer's responsibility as all purchases are clearly "as is." I would NEVER buy a used car without getting it checked out first! Overall, I am very pleased with my purchase and with Levi's.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Get what you want at Urban Motors!
This place was amazing! They not only have the cars people want they have the service to make you want to do business again! If you are looking for any type of speciality vehicle this is the place to look! Find the ride you want at Urban Motors!
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Erik Anaya made our buying experience a pleasure.
Erik Anaya made our buying experience a pleasure. Everyone was helpful and knowledgeable. They have a great inventory and we never felt pressured to buy a vehicle. They helps us pick out a vehicle that met our needs. I would highly recommend Weld County Garage.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Buying my first vehicle from this dealership was an
Buying my first vehicle from this dealership was an excellent decision, an overall outstanding experience.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I dealt personally w Manny Rodriguez.
I dealt personally w Manny Rodriguez. He was intelligent, knowledgeable, honest and transparent. I applaud MM Chevy for hiring such an inspiring young man. Would go back again in a heartbeat!! I purchased a nice Silverado due to Mannys professionalism! Phil Bravo
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Everything was smooth and easy finding my new jeep Max
Everything was smooth and easy finding my new jeep Max was very knowledgeable and has many years experience it was a pleasure working with him
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
After any serving of a vehicle taking it through your car
After any serving of a vehicle taking it through your car wash before returning to customer. This might encourage more customer loyality. Oil change prices are too expensive. The expertise needed to do that job doesn't equalate to charging that amount.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Raul, Derek and Alfonso made our buying experience
Raul, Derek and Alfonso made our buying experience simple! Found the perfect truck for our needs
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
How easy it is to work with Johnson Auto Plaza.
Purchasing my new 2022 GMC Sierra was easy as buying something through the drive-thru. The salesperson, Chris Maneotis was awesome. He explained how my trade-in would go towards the purchase of the new truck and went over the financing and options. I would highly recommend anyone to work with Johnson Auto Plaza.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Very good experience made the process easy left with a
Very good experience made the process easy left with a new car all the workers are great!
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
very friendly
The sales staff was very friendly and helpful. They are not a high pressure sales team so I did not feel rushed in to a decision at any point during my visit there. They answered all of my questions and made sure that I was completely confident with them and the entire purchasing process.
Used
2020 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 | $64,671 | 3 Good deals |
| 2025 GMC Sierra 1500 | $52,755 | 8 Great deals |
| 2024 GMC Sierra 1500 | $52,291 | 20 Good deals |
| 2023 GMC Sierra 1500 | $48,322 | 26 Good deals |
| 2022 GMC Sierra 1500 | $40,545 | 7 Great deals |
| 2021 GMC Sierra 1500 | $35,014 | 14 Good deals |
| 2019 GMC Sierra 1500 | $34,568 | 14 Good deals |
| 2018 GMC Sierra 1500 | $30,154 | 12 Good deals |
About the 2020 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 17
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
How much does the 2020 GMC Sierra 1500 cost?
The 2020 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 2020 Sierra 1500 is $33,876, with pricing starting at $15,995.
What is the MPG of the 2020 GMC Sierra 1500?
The 2020 GMC Sierra 1500 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 trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2020 GMC Sierra 1500?
The 2020 GMC Sierra 1500 compares to and/or competes against the following vehicles:
Is the 2020 GMC Sierra 1500 reliable?
The 2020 GMC Sierra 1500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 1500 owners.
Is the 2020 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2020 GMC Sierra 1500.
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
91% of drivers recommend this car
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
AT4 (3 styles)
| Style | ||
|---|---|---|
| 4WD Double Cab 147" AT4 | 4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
| Inventory price | ||
| Starting at $51,300 | Starting at $54,000 | Starting at $53,700 |
| Combined MPG | ||
| 18 | 18 | 18 |
| Engine | ||
| 420.0-hp, 6.2-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) |
Base (8 styles)
| Style | |||||||
|---|---|---|---|---|---|---|---|
| 4WD Crew Cab 157" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Double Cab 147" | 2WD Crew Cab 157" | 4WD Crew Cab 147" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
| Inventory price | |||||||
| Starting at $39,500 | Starting at $33,500 | Starting at $35,900 | Starting at $36,800 | Starting at $36,200 | Starting at $39,200 | Starting at $34,200 | Starting at $29,600 |
| Combined MPG | |||||||
| 20 | 20 | 20 | 20 | 20 | 20 | 17 | 17 |
| 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) | 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 (4 styles)
| Style | |||
|---|---|---|---|
| 2WD Crew Cab 157" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali | 2WD Crew Cab 147" Denali |
| Inventory price | |||
| Starting at $55,400 | Starting at $58,600 | Starting at $58,900 | Starting at $55,100 |
| Combined MPG | |||
| 19 | 18 | 18 | 19 |
| 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) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) |
Elevation (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 2WD Crew Cab 157" Elevation | 2WD Crew Cab 147" Elevation | 4WD Double Cab 147" Elevation | 4WD Crew Cab 147" Elevation |
| Inventory price | |||||
| Starting at $46,500 | Starting at $40,500 | Starting at $43,200 | Starting at $42,900 | Starting at $43,800 | Starting at $46,200 |
| Combined MPG | |||||
| 20 | 21 | 21 | 21 | 20 | 20 |
| 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) |
SLE (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 2WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 4WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 4WD Crew Cab 147" SLE |
| Inventory price | |||||
| Starting at $40,700 | Starting at $38,000 | Starting at $41,300 | Starting at $40,400 | Starting at $44,000 | Starting at $43,700 |
| Combined MPG | |||||
| 21 | 21 | 20 | 20 | 20 | 20 |
| 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) |
SLT (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT | 4WD Double Cab 147" SLT | 2WD Double Cab 147" SLT | 2WD Crew Cab 157" SLT |
| Inventory price | |||||
| Starting at $50,400 | Starting at $46,900 | Starting at $50,700 | Starting at $48,000 | Starting at $44,500 | Starting at $47,200 |
| Combined MPG | |||||
| 18 | 19 | 18 | 18 | 19 | 19 |
| 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) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-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 2020 GMC Sierra 1500
Compare the 2020 GMC Sierra 1500
2020 GMC Sierra 1500 by city
-
2020 GMC Sierra 1500 in Frederick, CO
2 Great Deals out of 25 listings starting at $27,990
-
2020 GMC Sierra 1500 in Dacono, CO
3 Great Deals out of 24 listings starting at $24,988
-
2020 GMC Sierra 1500 in Longmont, CO
2 Great Deals out of 22 listings starting at $27,990
-
2020 GMC Sierra 1500 in Fort Lupton, CO
2 Great Deals out of 23 listings starting at $27,990
-
2020 GMC Sierra 1500 in Erie, CO
3 Great Deals out of 25 listings starting at $24,988
-
2020 GMC Sierra 1500 in Aristocrat Ranchettes, CO
2 Great Deals out of 20 listings starting at $28,584
-
2020 GMC Sierra 1500 in Niwot, CO
2 Great Deals out of 21 listings starting at $27,990
-
2020 GMC Sierra 1500 in Todd Creek, CO
3 Great Deals out of 26 listings starting at $24,988
-
2020 GMC Sierra 1500 in Broomfield, CO
3 Great Deals out of 21 listings starting at $24,988
-
2020 GMC Sierra 1500 in Brighton, CO
3 Great Deals out of 25 listings starting at $24,988
-
2020 GMC Sierra 1500 in Lochbuie, CO
3 Great Deals out of 24 listings starting at $24,988
-
2020 GMC Sierra 1500 in Thornton, CO
4 Great Deals out of 23 listings starting at $24,988
2020 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.