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
Shenandoah, 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 SLT
Vehicle information
Features
Reviews
Randy was great from start to finish.
Randy was great from start to finish. He honored every request with positive energy. I recommend asking for him if you decide to shop at Gullo.
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
Service was roughly an hour and a half.
Service was roughly an hour and a half. The customer lounge area allowed us to sit and wait comfortably. We also received a coupon from the dealership which made our visit inexpensive.
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...






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
NEW RAV 4 XLE
I AM SO EXCITED TO SAY WE JUST BOUGHT OUR 7TH VEHILCE FROM JOSEPH HADI AND LUPE BARRERA!! I LOVE THIS DEALERSHIP BECAUSE THEY LISTEN TO YOUR NEEDS AND WORK MIRACLES TO MAKE IT HAPPEN. ADRIAN GARCIA HELPED WITH THE PAPERWORK CAUSE OUR BELOVED LUPE WAS OUT. THE TEAM THERE HEADED WITH JOSEPH HADI ARE THE MOST WONDERFUL PEOPLE EVER. IF YOU ARE WANTING A TOYOTA PLEASE GO SEE OUR DEALERSHIP!!
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.






Vehicle information
Features
Reviews
I had a very positive experience at Doggett Ford in
I had a very positive experience at Doggett Ford in Houston, Texas! The staff was friendly and knowledgeable, and they made my truck buying process smooth and stress-free. My sales rep Chris was helpful and answered all my questions. I felt like they were truly looking out for my best interests, not just trying to make a sale. I highly recommend Doggett Ford to anyone looking for a car or truck! They are top notch.
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 AT4
Vehicle information
Features
Reviews
Eric did a great job taking care of us!
Eric did a great job taking care of us! We were able to get exactly what we wanted with his help! I?m so excited about my new Jag.
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
GREAT SALES SERVICE
Bryon C. was amazing! We walked into the dealership looking for a Jeep that just happened to be sold the previous day. Bryon took the time to search all other dealerships to find one identical to the one we wanted. He was so helpful and had a great deal of patience with us during this entire process. Bryon continues to still answer our questions when we e-mail or call him. We have sent at least one other person to work with Bryon and we will definitely be sending more! We HIGHLY recommend Bryon C.! Thank you!




Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience, wonderful sales person, highly
Great experience, wonderful sales person, highly responsive and met all of our needs. Made the process very easy.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Bayway Cadillac of the woodlands
After searching for a good month for a used vehicle I finally found a dealership that would work with me with my trade in value, Laurel Williams and the sales managers moved mountains for me trying to get into a vehicle I wanted. I highly recommend Bayway Cadillac of the woodlands, top notch customer service and a pain free buying experience! Thank you! I will definitely be coming back for the next vehicle purchase.






Vehicle information
Features
Reviews
Buyer
Our salesman did a excellent job showing us all the vehicles features and assisting us in our purchase! We highly recommend him to anyone looking for a vehicle!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Mkaylen was an excellent customer service representative.
Mkaylen was an excellent customer service representative. She was personable, knowledgeable and made me feel heard and cared for. I had a great experience. Highly recommend






Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Gwendolyn made this service experience easy and less of a
Gwendolyn made this service experience easy and less of a to-do. My first service after purchasing wasn’t cold like other dealerships I’ve been too. 10/10






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I went to EchoPark looking to get my first car.
I went to EchoPark looking to get my first car. The car dealer, Darell was very helpful! He answered all of my questions and was more than helpful. I?m definitely coming back for all my future car purchases!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Lovish & Robert Wolfe made the car buying experience a
Lovish & Robert Wolfe made the car buying experience a pleasure. Professional and experienced. Working with knowledgeable professionals was a pleasure. This was the second GMC I bought at Beck & Marsten and they will be my go-to pros when I purchase my next Denali?






Vehicle information
Features
Reviews
Adrian did an excellent job with my vehicle services.
Adrian did an excellent job with my vehicle services. He explained all the worked needed to be done, and did not pressure me. He was very knowledgeable and professional. I will definitely be using the Quick Lane service for all my vehicle maintenance, repairs and services.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Went in for an oil change, they were fairly quick
Went in for an oil change, they were fairly quick considering it was a last minute decision to get it done. I'll be back again.






Vehicle information
Features






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features

Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Highly recommended over any other dealer.
Highly recommended over any other dealer. I will not take my car to any other place for repair. Please call them and schedule an appointment.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Couldn?
Couldn?t have asked for better customer service from Mike and the team, whole process was excellent, fast and efficient. I was able to drive away same day which was fantastic
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
It was a very pleasant experience.
It was a very pleasant experience. Lee Hobson and Dia Millan were very helpful through out our purchase. Answered all questions we had. Would recommend to my friends .
-
Prev - 1
- 2
-
Next
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $43,575 | |
2025 GMC Sierra 1500 | $31,088 | |
2024 GMC Sierra 1500 | $40,223 | 8 Great deals |
2023 GMC Sierra 1500 | $30,464 | 17 Good deals |
2022 GMC Sierra 1500 | $33,991 | 6 Good deals |
2020 GMC Sierra 1500 | $24,491 | 6 Good deals |
2019 GMC Sierra 1500 | $27,725 | 6 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 $39,386, with pricing starting at $15,991.
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
5 Great Deals out of 38 listings starting at $25,391
-
Ford F-150 for sale
3 Great Deals out of 42 listings starting at $20,333
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 by city
-
2021 GMC Sierra 1500 in Oak Ridge North, TX
5 Great Deals out of 30 listings starting at $25,888
-
2021 GMC Sierra 1500 in The Woodlands, TX
4 Great Deals out of 28 listings starting at $31,900
-
2021 GMC Sierra 1500 in Porter Heights, TX
5 Great Deals out of 24 listings starting at $25,888
-
2021 GMC Sierra 1500 in Spring, TX
6 Great Deals out of 38 listings starting at $25,888
-
2021 GMC Sierra 1500 in Tomball, TX
6 Great Deals out of 38 listings starting at $25,888
-
2021 GMC Sierra 1500 in Pinehurst, TX
4 Great Deals out of 25 listings starting at $32,715
-
2021 GMC Sierra 1500 in Stagecoach, TX
4 Great Deals out of 28 listings starting at $31,900
-
2021 GMC Sierra 1500 in Kingwood, TX
6 Great Deals out of 34 listings starting at $25,888
-
2021 GMC Sierra 1500 in Humble, TX
7 Great Deals out of 44 listings starting at $25,888
-
2021 GMC Sierra 1500 in Aldine, TX
7 Great Deals out of 49 listings starting at $25,888
-
2021 GMC Sierra 1500 in Atascocita, TX
6 Great Deals out of 38 listings starting at $25,888
-
2021 GMC Sierra 1500 in Jersey Village, TX
7 Great Deals out of 42 listings starting at $25,888
Used 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}
Certified cars are manufacturer warrantied and typically go through a rigorous multi-point inspection.
This car is likely to sell soon based on the price, features, and condition.
${award_blurb}
${award_two_blurb}