Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
2020 GMC Sierra 1500 trucks
for sale
near
Hazel Crest, IL
- 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 Elevation
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I have a new car!!
Kevin was phenomenal. Thorough,thoughtful and personable. Found me the perfect car and went out of his way to make sure all went well. Lisa was also great.
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
Vehicle information
Features
Reviews
Painless and Quick!
Took my mom to buy a pre-driven Camry. Car was there, clean, and ready to go. Test Drove, no issues. In and out fast, no games. No pressure. Good Sales Price. Worked with Mike Rubino, good experience! Would Highly Recommend Him!
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 SLT
Vehicle information
Features
Reviews
First car I've bought at CarMax. Great Experience.
Wouldn't do it any other way. I was very well treated and the buying process was quick and painless. The vehicle I liked was taken offline for 2 days until I was able to go to the dealer and test drive it. I thought that was a pretty nice feature.
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
I bought new 2025 Yukon at Woody.
I bought new 2025 Yukon at Woody. It's second time I bought a car there and will never look for other GMC dealership. My favorite salesman - Brian is the best. It's always available when i need him. Quite quick and nice purchasing procedure. New car came with more features so I needed a lot of explanations and Brian knew everything and explained it to me. If you are looking for BEST place for new GMC and the BEST place to service your car - Woody GMC is your place and Brian is your salesman !
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.






GMC Certified
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I think most people dread dealing with a dealership, but
I think most people dread dealing with a dealership, but I had a great experience. From the sales person to the finance person. Dell was so helpful and truly made the experience enjoyable as it should be.I would highly recommend Woody Buick-GMC dealership.






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I worked with Sabrina S.
I worked with Sabrina S. She made the entire process seamless and comfortable. I never felt pressured or haggled at any point. Thank you to Woody, and thank you, Sabrina.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Worked with Brian again and had a smooth and great
Worked with Brian again and had a smooth and great experience. I highly recommend this dealership and Brian.






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Good .
Good . Always bought cars from them. Since 1973 I bought a Oldsmobile Cuttlas Supreme. Vans, trucks and SUV?s. Close by easy to get to. That?s it.
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 AT4
Vehicle information
Features
Reviews
Always a great experience since we purchased our 2016 gmc
Always a great experience since we purchased our 2016 gmc terrain. Everyone is always very kind and helpful and knowledgeable. They let us know exactly what we need and get it done in a timely manner.






GMC Certified
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Thanks Marcin Kenny & Jimmy
An unforgettable experience to say the least. This is my 3rd new vehicle and by far the easiest and most hassle free. My salesman Marcin and manager Kenny went above and beyond for me to locate the perfect vehicle to fit my wants and needs along with staying in my budget. Jimmy also got me in and out with paperwork. Would definitely recommend all family and friends! Thanks Rizza GMC!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience
Drove over 50 miles because this dealership had a car I was interested in. It was nicer than I even expected and a very good price, so my wife and I bought it. The sales people treated us great. Daniel in finance went over all of our financing options and secured a great loan for us. I never write reviews, but this was a very nice experience. Would highly recommend and consider purchasing here again.






GMC Certified
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Buying my First car
I initially bought my car in July 2022. Our old family car broke down and needed a car. I had been window shopping for cars and looked but I didn?t see a car that stuck out to me until I saw the Buick Envision and fell in love with it and the color. The staff was super helpful throughout the buying process and I?m super happy with my purchase, I haven?t had my first oil change yet but I will def get that done soon at my dealer.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Dralle in Peotone 5 Star
Lou and I had the extreme pleasure of buying our truck from Dralle In Peotone today. From Greg Dralle Jr. Sales and Leasing Constaulant to Andy Sawder Finance Director it was an incredible experience. Exceptional customer service, awesome deal, and being treated like family makes us so grateful to them! Next time your in the market for a vehicle look no further than Dralle’s on Peotone!Thanks guys!😎






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I purchased a great vehicle yesterday.
I purchased a great vehicle yesterday. The staff were all polite & friendly. Jorge was great.👏🏾He made sure I got what I was looking. I would definitely recommend him & Webb Chevy to anyone looking to purchase a vehicle.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
See Rocky at Al Pimonte
When looking for a new vehicle contact Rocky! He is the man for all your car needs. He’s very good at his job and he makes sure you leave the dealership satisfied with your purchase and with a great deal. Wether you’re in the market for a new or used vehicle he will help find exactly what you’re shopping for. Recommend 10/10

Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Ed and the team were great to us for our purchase of 2
Ed and the team were great to us for our purchase of 2 vehicles. We will recommend Shaver Motors to others!
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Thank you Sandra at D'Arcy GMC
Sandra was our salesperson. She greeted us eager to help us find what we wanted. Her suggestions and alternative options were helpful in making our decision on which vehicle to purchase. Thank you Sandra! We enjoyed working with you and we will be back to see you when we purchase our next vehicle!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
We came in late in the day with an unexpected emergency
We came in late in the day with an unexpected emergency car repair and were very happy with the service provided. Everything was great! Check in, our shuttle driver Vicky was so kind and even stayed late to take us home which we appreciated. The car was fixed in a short amount of time and shuttle driver back Ed also very nice. We've purchased and had our cars serviced from D'Arcy since 1990 and could not be more pleased! Thank you!






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great purchase experience
The Team that my husband and I worked with Dillon, Tim & Dan, were all very helpful and courteous. We had a certain price point and they managed to get us very close to where we needed to be AND we got the car we really wanted. Buying process was seamless, communication was great, and customer service was wonderful. This was our second purchase with Haggerty and we highly recommend!! Thank you

Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great experience, my Sales person was Gene B and honestly
Great experience, my Sales person was Gene B and honestly he was the most helpful and made everything so smooth and easy. Super Recommended to go to Woody?s in Naperville IL
There are additional matching cars outside your search area.
Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.
As a benefit to some of our dealer customers, we display their listings first.






Used
2020 GMC Sierra 1500 Base
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
-
Prev - 1
-
Next
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $43,376 | |
2025 GMC Sierra 1500 | $35,500 | 4 Good deals |
2024 GMC Sierra 1500 | $37,140 | 22 Good deals |
2023 GMC Sierra 1500 | $32,295 | 5 Great deals |
2022 GMC Sierra 1500 | $33,995 | 13 Good deals |
2021 GMC Sierra 1500 | $18,950 | 27 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 $36,356, with pricing starting at $15,799.
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.
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.
Research the 2020 GMC Sierra 1500
Compare the 2020 GMC Sierra 1500
2020 GMC Sierra 1500 Trucks by city
-
2020 GMC Sierra 1500 Trucks in Markham, IL
2 Great Deals out of 20 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Country Club Hills, IL
2 Great Deals out of 20 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Harvey, IL
2 Great Deals out of 20 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Posen, IL
3 Great Deals out of 21 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Oak Forest, IL
2 Great Deals out of 20 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Midlothian, IL
2 Great Deals out of 20 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Dixmoor, IL
3 Great Deals out of 21 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Robbins, IL
3 Great Deals out of 21 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Crestwood, IL
3 Great Deals out of 21 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Riverdale, IL
3 Great Deals out of 21 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Blue Island, IL
3 Great Deals out of 21 listings starting at $29,500
-
2020 GMC Sierra 1500 Trucks in Tinley Park, IL
2 Great Deals out of 20 listings starting at $29,500
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
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.