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Used
2020 GMC Sierra 1500 trucks
for sale
near
Mission Bend, 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.






GMC Certified
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
John Ivanic goes above and beyond!
John Ivanic goes above and beyond! He made the process super easy and went very smooth. He also made sure to help me set up onstar and show me how to do initial set up in the truck.
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 SLT
Vehicle information
Features
Reviews
Used Truck Purchase
Huge shout out to Eugene and Zack for making our used truck purchase so simple. Most friendly service!! Eugene checked on us the next day.
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
Good service!
Good service! Clean car after service and all problems resolved. good communication and amenities offered. would return to have my very own truck GMC 2500 serviced here again
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
Ben is great customer service he got things done always
Ben is great customer service he got things done always kept me updated on the status of the truck always going beyond for the customer so thank you
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 SLT
Vehicle information
Features
Reviews
They were very helpful and made the process go through
They were very helpful and made the process go through smoothly. When I go to get my vehicle serviced, they provide great service. The staff is respectful.
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
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.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Julio was an awesome and helped us with the purchase.
Julio was an awesome and helped us with the purchase. We are excited to be part of this dealership.






Vehicle information
Features
Reviews
Had a great experience buying a new Mazda.
Had a great experience buying a new Mazda. Worked with Roderick and didn’t feel pressured at all to make a decision. He was helpful and got me the car I wanted!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I recently had electronic work done on my Jeep Cherokee
I recently had electronic work done on my Jeep Cherokee and was very pleased with the service at Auto Nation Katy. The service rep kept me informed of findings, provided a timely quote and repair and in the end the repair cost was less than quoted. When my car was ready they sent a shuttle to pick me up, even though I was slightly outside of their usual radius. Thank you to Derrick and Auto Nation!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Our internet salesman was Joseph Bryant he was excellent
Our internet salesman was Joseph Bryant he was excellent and no hassle and no pressure. Lone Star Chevrolet is lucky to have him. I recommend him and his dealership.






Vehicle information
Features
Reviews
Everyone very friendly Prefect customer service I will
Everyone very friendly Prefect customer service I will always come back Price is fare and quality is high






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Muhammad Abbasi, was a great person, am very satisfy with
Muhammad Abbasi, was a great person, am very satisfy with their work . Thank you America's Xtreme Auto.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Hector and Christopher were exceptional!
Hector and Christopher were exceptional! I am particularly impressed with the dealership?s services. This transaction marks my second purchase within the past five years, and I highly recommend them. My financial representative secured a favorable rate for me, and I am very satisfied with the experience.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience and service from sales.
Great experience and service from sales. I?m a repeat buyer from this dealership. Always a god experience with this sales group. Purchased and new truck. Thank you.






Vehicle information
Features
Reviews
Toyota of Katy
hours ago NEW if you are looking for a Toyota, I highly recommend using Cedric at Toyota of Katy. I called him, told him what I was looking for, he went out in the rain, and got pictures and videos. Met me at the dealership the next day early before he was supposed to be at work. Started the process of purchasing a new vehicle. He explained everything in detail, very patient, very kind, as I was waiting for finance to be approved, he constantly kept me up-to-date. Answered all my questions in detail. I could not have hand picked a better salesman!!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Outstanding service!
Outstanding service! I want to give a huge thank you to Luis Rodriquez for helping me with the purchase of my new truck. He was very friendly, professional and knowledgeable. I would also like to thank Richard for being so kind to my 8-year-old grandson during the process of my purchase.






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great experience!
Worked With David R. and Alex N. in buying a 2021 BMW. Professional and courteous all the way around. Was the easiest car buying experience we've ever had. Stevn F. went through all the features and functions with my wife and he was fantastic. Great buying from them and would definitley recommend!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I came to south Houston Nissan to buy a new pathfinder
I came to south Houston Nissan to buy a new pathfinder rock creek; I was attended by dulce she helped me with everything






Vehicle information
Features






Vehicle information
Features
Reviews
The best dealership in Texas and Highly recommende
They've got the best car deals that are highly recommended. The transaction are so smooth and the sales department was very friendly and professional to accommodate us.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $29,300 | 4 Good deals |
2024 GMC Sierra 1500 | $31,600 | 40 Good deals |
2023 GMC Sierra 1500 | $34,995 | 30 Good deals |
2022 GMC Sierra 1500 | $36,495 | 8 Good deals |
2021 GMC Sierra 1500 | $28,995 | 19 Good deals |
2019 GMC Sierra 1500 | $26,977 | 5 Good deals |
2018 GMC Sierra 1500 | $21,891 | 6 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 $37,635, with pricing starting at $16,481.
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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Used 2020 GMC Sierra 1500 by body style
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