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Used
2020 GMC Sierra 1500 Denali 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
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great Experience
I was very fortunate to have the greatest salesman, manger, General manager and finance director in the business assist in my purchase. Thank you "Coach" for all you do for me and the family
Great truck!
I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Cameron was super helpful, great experience all the way
Cameron was super helpful, great experience all the way through, preferred text communication start to finish and being out of state I walked in the dealer and was driving home my new truck 20 minutes later! Thanks Cam!
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 Denali
Vehicle information
Features
Reviews
Third used car I've bought in the DSM area in past year,
Third used car I've bought in the DSM area in past year, first time from Audi of DSM. Best experience of all three. Easiest process of all three. Best customer service of all three. Fastest turnover time of all three. What more needs to be said. Well done Audi of DSM.
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 Denali
Vehicle information
Features
Reviews
My salesperson Kevin Klemz was a great salesperson.
My salesperson Kevin Klemz was a great salesperson. Understood what I wanted and was patient while I completed the deal.
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
Worked with Himmy (car sales) and Denis (finance) in
Worked with Himmy (car sales) and Denis (finance) in regards to our recent purchase of a 2023 Nissan Armada. Himmy was very professional and transparent during the negotiation process. Denise was very helpful and knowledgeable. Throughout the entire process the team at Boucher Hyundai ensure all questions were answered and helped to streamline the purchase and trade-in process. Thanks and would purchase another vehicle from this professional dealership.
Best truck I’ve bought
The features and styling are very aesthetic. The truck has very smooth handling and response. I am impressed with the response from the Diesel engine.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Adi and Oscar was extremely helpful and informative in
Adi and Oscar was extremely helpful and informative in making the process efficient and understandable. Broke down the costs and was patient with my questions.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Outstanding service; expert friendly folks!
Outstanding service; expert friendly folks! Highly recommended service provider for the make and model car that I own. I will come back for future service procedures and or product recalls.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great Salesman!
We just bought 2 vehicles! A 2022 Chevrolet and a 2018 GMC Terrain. Jerel was our salesman and I hope that this dealership realizes what they have, because he went above and beyond and was there with us to the end! We are very pleased with our new vehicles and would definitely go back!!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Frankie is the best such a great person very honest and
Frankie is the best such a great person very honest and helpful got me the car i wanted quick and easy sales people are polite and professional good looking cars great prices!! two thumbs up!!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I recently leased a 2025 Jeep Wrangler and the entire
I recently leased a 2025 Jeep Wrangler and the entire experience was great. Aydin was professional, thoughtful, and worked to get me what I wanted. I highly recommend this dealer ship to anyone looking for a car.






Certified
2020 GMC Sierra 1500 DENALI
Vehicle information
Reviews
Tyler and Tristan both were Great!
Tyler and Tristan both were Great! Made it so easy and fast. I would definitely recommend Modern Ford of Boone.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Everyone was very friendly and kind.
Everyone was very friendly and kind. Always keep in the loop of what was going on. Was not to long process to complete the whole process.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great experience all the way around great sales guy ray
Great experience all the way around great sales guy ray to the awesome finance mgr will definitely be my new dealership goin forward!!!!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Did not get the 2025, got a 2024.
Did not get the 2025, got a 2024... EVERYONE EVERYONE THERE WERE ABSOLUTELY WONDERFUL!! NEVER LAUGHED SO HARD IN YEARS!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My wife and I went to purchase a car for our daughter.
My wife and I went to purchase a car for our daughter. Our sales representative was Brian Whalen. We had a great experience, would definitely recommend him to friends and family. He answered every question, got us the car and price we wanted. The process was quick and easy. Thank you!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Brent always provides exceptional service.
Brent always provides exceptional service. Place is comfortable and clean. Great customer service. Everyone is friendly and helpful. If you?re looking for a good place to purchase your new car. This is it!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Cooper and Robert are superstars *****!
Cooper and Robert are superstars *****!! Very polite and respectful and professional 👍 Great customer service. I






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
15 years of Buying Yukon's (x2) and Ongoing Maintenance,
15 years of Buying Yukon's (x2) and Ongoing Maintenance, never an issue and more important, the Service Department has always looked out for our well being and safety. Many Thanks!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Issue was addressed immediately.
Issue was addressed immediately. Problem was fixed. Fast, friendly service plus a car wash. Great!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 Denali | $62,290 | |
2025 GMC Sierra 1500 Denali | $54,540 | 40 Great deals |
2024 GMC Sierra 1500 Denali | $50,000 | 41 Great deals |
2023 GMC Sierra 1500 Denali | $41,995 | 41 Great deals |
2022 GMC Sierra 1500 Denali | $36,537 | 30 Great deals |
2021 GMC Sierra 1500 Denali | $27,891 | 54 Great deals |
2019 GMC Sierra 1500 Denali | $24,992 | 147 Good deals |
2018 GMC Sierra 1500 Denali | $18,487 | 129 Good deals |
2017 GMC Sierra 1500 Denali | $15,980 | 17 Great deals |
About the 2020 GMC Sierra 1500 Denali
Denali shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 19
- Transmission
- 10-Speed A/T
- Engine
- 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)

How much does the 2020 GMC Sierra 1500 Denali cost?
The 2020 GMC Sierra 1500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 1500 Denali is $41,067, with pricing starting at $29,999.
What is the MPG of the 2020 GMC Sierra 1500 Denali?
The 2020 GMC Sierra 1500 Denali offers up to 17 MPG in city driving and 23 MPG on the highway for a combined rating of 19 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 2020 GMC Sierra 1500 Denali?
The 2020 GMC Sierra 1500 Denali compares to and/or competes against the following vehicles:
Is the 2020 GMC Sierra 1500 Denali 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.
91% of drivers recommend this car
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
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) |
*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 2020 SLT
39 Great Deals out of 449 listings starting at $24,000
-
GMC Sierra 1500 2020 AT4
20 Great Deals out of 378 listings starting at $25,995
-
GMC Sierra 1500 2020 Elevation
22 Great Deals out of 182 listings starting at $14,980
-
GMC Sierra 1500 2020 SLE
16 Great Deals out of 77 listings starting at $22,490
-
GMC Sierra 1500 2020 Base
12 Great Deals out of 41 listings starting at $14,928
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