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Used
2020 GMC Sierra 1500 trucks
for sale
near
Pasadena, 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.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
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Reviews
AMAZING DEALERSHIP AND PEOPLE
Honestly the BEST car buying experience we have ever had:) I highly recommend Gay Family Auto Trey, Kiss and Steve are amazing. From the time we walked in to the day that Trey delivered my sons truck it was ABSOLUTELY PROFESSIONAL.
Any reviews on this vehicle is not correct.
Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The wait time was good The customer wait area was clean
The wait time was good The customer wait area was clean The bathroom was clean Bring back the commentary soda and hot dogs on Saturdays The service advisor was pleasant
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!
Certified
2020 GMC Sierra 1500 AT4
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Reviews
I bought a car from this dealer entirely online, and
I bought a car from this dealer entirely online, and their team went above and beyond to assist me. They helped with the inspection and even took the car to the dealership for a recall, and this happened to be for a BMW. Despite the transaction being online, they provided exceptional service by personally handling these tasks for me. I?ve already sent them both thank you's, but still their effort truly exceeded my expectations. I?ll definitely return to them for my next car purchase.
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
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Reviews
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 Elevation
Vehicle information
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Reviews
Process didn't take a long time.
Process didn't take a long time.salesman gave all incentives available. Reviews should not have mandatory number of words to be submitted. Please change.
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!
Vehicle information
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Reviews
2022 F150 from Cook Ford
I?m not one to leave reviews online when I have bad experiences , non the less when I have a good one BUT I really feel my experience at Cook Ford and giving appreciation to Eric Osorio(sell?s guy) and Tania Brown(finance manager) is well worth what little time I have to get on here and leave them a review. I bought my 2022 F150 on Nov 22nd just before Thanksgiving. I?m a man of little free time when I?m off work and was in somewhat desperate need of a truck. With thanksgiving being only 2 days away I was stressed enough not knowing if I?d be home for the holiday or stuck on a train at work so I had that to add on to my stress. Just as I pulled into the parking lot rain started to pour down. I took that as a bad luck sign. I felt as if I was going to walk into the dealer and be rushed,forced and pressured into buying something I didn?t really want at a price I felt was over priced. Eric Osorio made me feel the complete opposite of that. I didn?t go in with a certain truck in mind,I just knew I needed one. Rain was still pouring and he did not hesitate one bit to go outside in the pouring rain and walk the whole lot with me till I found the truck I wanted. Never complained about the rain nor made any bothered faces about me taking my time to look at their inventory. So we walk back in and start discussing numbers as well as a vehicle trade in as I was going to trade in a Ford Explorer I had. Was nervous because I never traded a vehicle in. He made the whole process seem like a walk in the park and was able to work with the Cook Ford manager on giving me a better offer for my Explorer than I had in mind. Everything just seemed like it was going too good based on my passed experience at a previous Ford dealer back in 2019. Across the hall from Eric was the Finance Manager (Tania Brown). She was previously helping out another client as Eric was wrapping up all the paperwork I needed to sign. As Eric was finishing I could see a young lady in her early 20?s with her mom walking out Tania?s office with a big smile. That gave me somewhat of a stress reliever. Just as Eric introduces me to Tania and it?s my turn to walk in and go through the final finance process with Tania her lunch was getting delivered via grubhub. Being that I spend a lot of time away from home and don?t really get to sit down with my family at the dinner table every day/night Breakfast,Lunch and Dinner time is sacred to me when I am home with my wife and son of 2yrs old. So I told Tania that I didn?t mind waiting outside while she ate her hot meal that had just been delivered. She told me it was fine and that she could wait till she got done with me. This made me feel like now she was going to rush me out of there and not give me the same impeccable service I received from Eric Osorio so I told her once more that I didn?t mind waiting but she insisted in helping me still. To my surprise miss Tania Brown made me feel just as comfortable as when I was dealing with Eric. She didn?t try to force me into getting anything I wasn?t really looking for in a warranty package. To be honest the price of the truck and monthly payment I was going to have was a bit more than I wanted but they were both able to give me a good deal on my trade in,new truck price and final financing. So much so that I was able to walk out with just the monthly payment and overall final financing price I was hoping for. Tania Brown really helped ALOT with getting me the perfect balance of warranty protection for my new truck. She was such a kind hearted person that I even shaved personally family business with her(in a good way,no negative stuff)and that?s something I don?t do even with my close friends. She even shared information about programs and events that will be fun and helpful to my wife,son and I. I drove in on a rainy day and gut feeling of bad luck and drove out feeling as if I just left Sunday service. I can?t help but say that Eric and Tania?s teamwork was top tier and 2nd to none! TY!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Shout out to the salesman, Osbaldo Perez for awesome
Shout out to the salesman, Osbaldo Perez for awesome customer service And shout out to the finance manager Mr. Willie Hill for closing the deal. I appreciate all the help.
Used
2020 GMC Sierra 1500 SLT
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Reviews
Very helpful team, willing to make business and willing
Very helpful team, willing to make business and willing to get you closer to your budget.very experienced sales person.clean vehicles.plenty vehicle inventory.
Used
2020 GMC Sierra 1500 Denali
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Reviews
Jessica was an amazing super friendly, nice responsive
Jessica was an amazing super friendly, nice responsive best Service tech I?ve ever experienced. Would highly recommend come to you for service again. So nice and friendly.
Used
2020 GMC Sierra 1500 SLT
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Reviews
Great, Vickie?
Great, Vickie?s the best service writer that I have ever had. The dealership looks after their customers, and makes sure they are satisfied with the results of the repaired vehicle.
Used
2020 GMC Sierra 1500 SLT
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Reviews
Jordan helped me and was very informative he kept me
Jordan helped me and was very informative he kept me informed of what was happening at all time. Nothing else I have to say let me summit this review
Used
2020 GMC Sierra 1500 AT4
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Reviews
I'm very pleased with this dealership.
I'm very pleased with this dealership. Top-notch service, friendly staff, quality vehicles, and a great level of personalized service. Rudy was the best salesman I've worked with, and this is the 7th car I've bought in my many years driving. I'm really impressed with the automobile I bought and with the price. Truly a no-haggle and no-hassle deal. Hamida made the financing paperwork easy and quick. I've already recommended them to two coworkers and I will be shopping for my next vehicle here too. Thank you again Rudy!
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
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Reviews
Amazing Service
Really friends staff and amazing prices on good like new cars! Would recommend to anyone
Used
2020 GMC Sierra 1500 SLT
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Used
2020 GMC Sierra 1500 Elevation
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Reviews
Young man taking care of my vehicle service has been
Young man taking care of my vehicle service has been solid. Keeps in contact throughout the process. Not all service reps are like Christian Arrellano. Great kid.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
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Used
2020 GMC Sierra 1500 Elevation
Vehicle information
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Reviews
Kevin helped me out with getting a new F-150.
Kevin helped me out with getting a new F-150. They worked with me to get a good deal, and it was a much better experience than most dealers.
Used
2020 GMC Sierra 1500 Elevation
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Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
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Reviews
Outstanding Experience with Amir at Helfman Ford!
Outstanding Experience with Amir at Helfman Ford! I recently purchased a 2024 Ford Expedition Max from Helfman Ford, and I have to give a huge shoutout to Amir for making the entire process seamless and enjoyable. From the moment I walked in, Amir was professional, knowledgeable, and genuinely invested in helping me find the right vehicle. He took the time to answer every question with clarity, and never once made me feel rushed or pressured. His attention to detail and commitment to customer satisfaction were truly impressive. What really stood out was Amir’s ability to make the experience feel personal. He listened to what I needed, offered thoughtful recommendations, and made sure I was comfortable every step of the way. The Expedition Max is an incredible vehicle, and Amir made sure I drove off the lot feeling confident and excited. If you're in the market for a new Ford, I highly recommend asking for Amir at Helfman Ford. You won’t just get a great car—you’ll get top-tier service from someone who genuinely cares.
Used
2020 GMC Sierra 1500 Denali
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $59,029 | |
| 2025 GMC Sierra 1500 | $57,190 | 8 Great deals |
| 2024 GMC Sierra 1500 | $46,812 | 5 Great deals |
| 2023 GMC Sierra 1500 | $48,821 | 5 Good deals |
| 2022 GMC Sierra 1500 | $41,410 | 9 Good deals |
| 2021 GMC Sierra 1500 | $35,244 | 12 Great deals |
| 2019 GMC Sierra 1500 | $29,443 | 6 Good deals |
| 2018 GMC Sierra 1500 | $25,021 | 6 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 $33,931, with pricing starting at $14,995.
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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Compare the 2020 GMC Sierra 1500
2020 GMC Sierra 1500 by city
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1 Great Deal out of 22 listings starting at $18,850
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2020 GMC Sierra 1500 in Friendswood, TX
1 Great Deal out of 20 listings starting at $18,850
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2020 GMC Sierra 1500 by body style
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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.
