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Used
2020 GMC Sierra 1500 trucks
for sale
near
Channelview, TX
- 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.






Certified
2020 GMC Sierra 1500 AT4
Vehicle information
Reviews
Great experience, highly recommended
While I'm a little tardy on sharing my buying experience at Mac Haik, I can tell you I'm very happy with every aspect of it. Purchased/ordered a new Ford truck over the phone, dealt with Lawrence Gallegos at Mac Haik, easy to work with. Provided me with a great deal, great customer service and made sure everything was exactly as we talked about, even making sure the delivery was accomplished very professionally which included arranging transportation. Many thanks to Mac Haik and Lawrence for making my purchase a pleasure. Highly recommend this dealership
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 SLE
Vehicle information
Features
Reviews
Friendly, knowledgeable staff, clear and efficient
Friendly, knowledgeable staff, clear and efficient communication, so helpful and locating the perfect vehicle was handled beautifully!! Financing also exceeded my expectations!! I would come back again for additional purchases.
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 AT4
Vehicle information
Features
Reviews
They have such great cars.
They have such great cars. Matthew Gaitan was very professional, and very humble . Thank you so much America's Xtreme Auto.
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
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 at TX AutoGroup.
Great experience at TX AutoGroup. I highly recommend getting with Alex Hernandez to find what you need. He’s very personable, lays out everything as is and does not have hidden agendas. He also helped me get a deal that I was exactly looking for. Get with him, you won’t regret it
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 SLT
Vehicle information
Features
Reviews
Loved it nice clean cars very happy with my purchase and
Loved it nice clean cars very happy with my purchase and car it’s beautiful






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Excellent / Ricardo and Alexis were great, very patience
Excellent / Ricardo and Alexis were great, very patience and understandable. very fast process - very recommended. excellent car options, very extended inventory. great location, great people and great price.






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great experience!
I received excellent service from everyone who helped with my car purchase. Everyone worked hard to make sure that I was satisfied with my purchase, and I really appreciate the patience and helpfulness that I was shown.






Vehicle information
Features
Reviews
Let’s start off with what went bad.
Let’s start off with what went bad. I purchased a 2016 ‘Vette and less than 24 hours later the AC went out. To my dismay, I DID NOT purchase an extended warranty. Now, onto the rest of the experience. The team at Emmons Autoplex took complete care of me. They almost had to replace an entire AC system in order to fix the issue at no cost to me other than the time and gas it took to get there. The car was in immaculate physical condition, and was the cheapest C7 corvette within 100 miles. Kevin handled the no pressure, no hassle sale like a champ and the service team took care of the rest of the issues. The general manager even offered to completely scrub the deal if they could not complete the repairs. Overall, it was a great experience and instilled confidence in the organization as a whole on how they would handle business in the future. I would definitely purchase another vehicle from Emmons Autoplex.






Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Perfect I had a great time everyone help us specially
Perfect I had a great time everyone help us specially Angel . Very patient and professional. Angel. I will tell ny friends about Beck and Masten South






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I had to have some warranty work done on my truck the the
I had to have some warranty work done on my truck the the staff was amazing they did a great job especially Alex Fierro he went out of his way to help me and he was keeping me updated on the status of my truck I will definitely be bringing my truck back to have any issues taken care of






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Service was prompt.
Service was prompt. I was informed in advance of the approximate cost. I was kept informed of the status of the repairs. The repair was completed ahead of schedule.






Vehicle information
Features
Reviews
We had to take my wife’s car in for an air conditioning
We had to take my wife’s car in for an air conditioning issue. We were immediately met by an employee who took the keys and put a carpet protector in the car. Alex was right behind taking our explanation of the problem. Alex wrote up the paperwork, gave us a card and told us he would keep us updated. Sure enough, we received texts from Alex as to the status. Alex texted us about 4 pm and had the AC issues resolved. Great customer service from Alex as well as the rest of the service team. I have been a customer of Robbins Chevrolet since 1976. I have always had great customer service, but this experience seemed to be over the top. Keep it up and Roll Tide!
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Buying from Tommie Vaughn was a great experience overall.
Buying from Tommie Vaughn was a great experience overall. Omar was a huge pleasure to work with. Definitely coming back!!

Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
A great place to buy and get service make you
As always everyone treats me as if I am Family! Great people and great service They make the experience a good one Every time all the time.

Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Professional and polite was greeted upfront from the
Professional and polite was greeted upfront from the beginning. Work was done quick. Great job
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Valet service for pick up and return of my vehicle was
Valet service for pick up and return of my vehicle was the best. On time and communication was by text and very informative. Good job. I will use the valet service and Planet Ford in Spring again. Thank you.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
great experience at this dealership.
great experience at this dealership. highly recommend it to anyone who is trying to buy a used or new car. doyle was great at letting us test drive vehicles
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $42,156 | |
2025 GMC Sierra 1500 | $33,998 | 2 Good deals |
2024 GMC Sierra 1500 | $35,638 | 10 Great deals |
2023 GMC Sierra 1500 | $33,500 | 10 Great deals |
2022 GMC Sierra 1500 | $27,700 | 10 Good deals |
2021 GMC Sierra 1500 | $26,748 | 6 Great deals |
2019 GMC Sierra 1500 | $20,999 | 8 Good deals |
2018 GMC Sierra 1500 | $21,485 | 10 Good deals |
2017 GMC Sierra 1500 | $17,986 | 5 Great 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 $36,528, with pricing starting at $17,995.
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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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.