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
2021 GMC Sierra 1500 trucks
for sale
near
Pleak, 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
2021 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
Justin was great!
Justin was great! Him and his team helped us find the perfect vehicle for our family
This truck has a jerk when changing gears sometimes.
This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Prievously Owned SUV purchase
This is my third car purchase from CAR MAX . A later model for the wife . A jeep Cherokee and is a 2019 with low mileage . She is happy and that makes US happy . The purchase was not hurried and no back and forth between Mr Smith and I . Really straightforward . Satisfied completely .
Brake Pad Monitor
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...
Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
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.
Nicest, best performing truck I've ever owned
My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great selection of used luxury cars.
Great selection of used luxury cars. They have everything from Mercedes to aston martins. Will definitely be back
2021 GMC Sierra Denali
This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Ozzie was great to work with and made my car buying
Ozzie was great to work with and made my car buying experience pleasant and easy. He's very professional, knowledgeable and helpful. I will definitely do business with him and EchoPark in the future.
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I recently bought a 2014 BMW X5 from Hue - he was very
I recently bought a 2014 BMW X5 from Hue - he was very attentive and helpful. I had a 3rd party inspection completed prior to purchasing and they gave good marks for the car. I have received many compliments on how new the car looks despite being over 10 years old. The owner, Kal, offered top-dollar for our trade-in and even offered us fair money for an older car. The purchase process went very smoothly with Trice, and the dealership was very responsive when I needed some help with a trailer hitch. Their collection of cars impressed me - they seem to only sell cars in excellent condition. I can definitely recommend America’s Auto Financial to anyone looking for a nicely used car!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Good deals, very responsive.
Good deals, very responsive. Clean cars. Upfront and honest group of individuals. Highly recommended car dealer
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
John was a Great help and not high pressure at all.
John was a Great help and not high pressure at all. Knowledgeable and courteous, he was a pleasure to work with. We will be using this dealership again.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Good customer service.
Good customer service. They sent me new blades to replace the old ones and even offered to install them for free. Thank you for your generosity
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I had a great experience at AutoNation CDJR Katy.
I had a great experience at AutoNation CDJR Katy. Rafael was my sales rep and he explained everything clearly, answered all my questions, helped me feel at ease about any doubts I had regarding making a big purchase, and worked hard to make sure I felt comfortable with the best deal they could possibly get. Gerardo in finance was just as great. He was knowledgeable, very easy to work with, and even made signing paperwork fun. The whole process was smooth and efficient! But what really stood out to me from this dealership was the degree of professionalism and honesty. When an issue came up, instead of brushing it off, they were upfront and fixed it quickly. That kind of integrity and proactive protection of customer trust is rare. And it?s the reason we?ll definitely come back here for my husband?s car and my next car, as well as refer my friends and family, because outstanding customer care like this deserves to be shared and celebrated. If you want an honest dealership that treats you with respect, values transparency, and truly cares about its customers, AutoNation CDJR Katy is the place to go!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great dealership!
Top Notch all the way. Sales and service treat you right. Definitely worth the drive from wherever you live to see these guys next time you need a new car or service.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
The entire experience from the appraisal of my trade-in
The entire experience from the appraisal of my trade-in to the negotiation of the car to F&I were very good. The vehicle had been detailed and was ready to go.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I was in for the annual checkup and my salesman Brad
I was in for the annual checkup and my salesman Brad Biondo had reached out to me via email with an assessment of my 2020 car. So I stopped by. Ha- now driving a 2026. That wasn’t the plan. I continue to be impressed with the upgrade. Huge difference in performance and attributes. Brad made it all to easy. Super knowledgeable, reliable, with integrity- highly valued.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
This review is about our car buying experience with Mr.
This review is about our car buying experience with Mr. Keith Mack. we are beyond blessed and grateful for all of your hard work in helping us to get the car of our dreams. You are a class act; very patient, kind and a master at your craft. Your whole entire team is by far, the best in the business. You and your team made this car buying decision one of the most memorable, meaningful and important experiences we have ever had. For anyone who is interested in buying their dream car, family car, any kind of car you will NOT receive better service than you will get from Mr Keith Mack and team at Group 1 GMC. Last, but not least our vehicle was listed well below the average market value. Not only did we get the car we wanted, our vehicle came fully loaded, washed, detailed and with a full tank of gas. Mr Keith Mack is the only salesperson you will ever need, so tell your family and friends; you will not be sorry!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Vehicle information
Features
Reviews
Mark was a pleasure to work with Everything was done
Mark was a pleasure to work with Everything was done right Highly recommend Westside Lexus
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Steven, as busy as he is definitely squared me away.
Steven, as busy as he is definitely squared me away. I truly appreciate his honesty and help. My vehicle was repaired two weeks early, which was amazing.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Ms Allison was professional,friendly and willing to help
Ms Allison was professional,friendly and willing to help my situation. She really loves what she does and have a great talent in sales. I' had go to other places and when you present the particularities of your case, they dismisses you as soon as possible. This was not the case with Alisson, she was very attentive and looked how to help, not just to sale. As for this part, what else can I say? My experience has been great so far but can't find a reason to write an essay to say so. Alisson, this is noyt your fault. This section shouldn't requiere too many words.
-
Prev - 1
- 2
-
Next
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $57,195 | 1 Good deal |
| 2025 GMC Sierra 1500 | $52,880 | 1 Good deal |
| 2024 GMC Sierra 1500 | $47,483 | 7 Great deals |
| 2023 GMC Sierra 1500 | $48,086 | 7 Good deals |
| 2022 GMC Sierra 1500 | $48,077 | 3 Good deals |
| 2020 GMC Sierra 1500 | $29,055 | 5 Good deals |
About the 2021 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 16
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
How much does the 2021 GMC Sierra 1500 cost?
The 2021 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 2021 Sierra 1500 is $35,853, with pricing starting at $12,999.
What is the MPG of the 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 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 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 1500 reliable?
The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.
Is the 2021 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
60% of drivers recommend this car
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
| Inventory price | |
| Starting at $55,900 | Starting at $54,700 |
| Combined MPG | |
| 16 | 17 |
| Engine | |
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Base (7 styles)
| Style | ||||||
|---|---|---|---|---|---|---|
| 4WD Double Cab 147" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Crew Cab 147" | 4WD Crew Cab 157" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
| Inventory price | ||||||
| Starting at $37,300 | Starting at $34,000 | Starting at $36,400 | Starting at $39,700 | Starting at $40,000 | Starting at $34,700 | Starting at $30,100 |
| Combined MPG | ||||||
| 19 | 21 | 21 | 19 | 19 | 16 | 16 |
| 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) | 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 (3 styles)
| Style | ||
|---|---|---|
| 2WD Crew Cab 147" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali |
| Inventory price | ||
| Starting at $55,800 | Starting at $59,300 | Starting at $59,600 |
| Combined MPG | ||
| 17 | 18 | 18 |
| 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) |
Elevation (7 styles)
| Style | ||||||
|---|---|---|---|---|---|---|
| 4WD Double Cab 147" Elevation w/3VL | 4WD Crew Cab 147" Elevation w/3VL | 4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 4WD Double Cab 147" Elevation w/3SB | 4WD Crew Cab 147" Elevation w/3SB | 2WD Crew Cab 147" Elevation |
| Inventory price | ||||||
| Starting at $44,600 | Starting at $47,200 | Starting at $49,300 | Starting at $43,100 | Starting at $46,400 | Starting at $49,000 | Starting at $45,700 |
| Combined MPG | ||||||
| 19 | 19 | 19 | 21 | 19 | 19 | 21 |
| 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) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (5 styles)
| Style | ||||
|---|---|---|---|---|
| 4WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Double Cab 147" SLE |
| Inventory price | ||||
| Starting at $47,100 | Starting at $47,400 | Starting at $41,400 | Starting at $43,800 | Starting at $44,700 |
| Combined MPG | ||||
| 19 | 19 | 21 | 21 | 19 |
| 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) |
SLT (3 styles)
| Style | ||
|---|---|---|
| 4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
| Inventory price | ||
| Starting at $50,800 | Starting at $47,500 | Starting at $51,100 |
| Combined MPG | ||
| 18 | 17 | 18 |
| 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) |
*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.
Similar Cars
-
Chevrolet Silverado 1500 for sale
12 Great Deals out of 46 listings starting at $18,473
-
Ford F-150 for sale
1 Great Deal out of 31 listings starting at $21,499
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 by city
-
2021 GMC Sierra 1500 in Fairchilds, TX
5 Great Deals out of 22 listings starting at $23,191
-
2021 GMC Sierra 1500 in Rosenberg, TX
5 Great Deals out of 22 listings starting at $23,191
-
2021 GMC Sierra 1500 in Cumings, TX
8 Great Deals out of 32 listings starting at $22,895
-
2021 GMC Sierra 1500 in Richmond, TX
8 Great Deals out of 32 listings starting at $22,895
-
2021 GMC Sierra 1500 in Pecan Grove, TX
8 Great Deals out of 33 listings starting at $22,895
-
2021 GMC Sierra 1500 in Sugar Land, TX
8 Great Deals out of 40 listings starting at $22,895
-
2021 GMC Sierra 1500 in Weston Lakes, TX
7 Great Deals out of 27 listings starting at $22,895
-
2021 GMC Sierra 1500 in Fulshear, TX
7 Great Deals out of 30 listings starting at $22,895
-
2021 GMC Sierra 1500 in Four Corners, TX
9 Great Deals out of 42 listings starting at $22,895
-
2021 GMC Sierra 1500 in Mission Bend, TX
9 Great Deals out of 42 listings starting at $22,895
-
2021 GMC Sierra 1500 in Missouri City, TX
9 Great Deals out of 47 listings starting at $22,895
-
2021 GMC Sierra 1500 in Fifth Street, TX
9 Great Deals out of 45 listings starting at $22,895
2021 GMC Sierra 1500 by body style
- ${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.
