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Used
2021 GMC Sierra 1500 trucks
for sale
near
La Porte, 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 Denali
Vehicle information
Features
Reviews
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
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.
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 Elevation
Vehicle information
Features
Reviews
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
Melissa was absolutely marvelous with helping me navigate
Melissa was absolutely marvelous with helping me navigate the buying process! she was professional and gave me the time I needed to make a decision on the vehicle that was right for me and my family!
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.
Vehicle information
Features
Reviews
Good they tried to make the deal and we’re willing to
Good they tried to make the deal and we’re willing to bend a little bit
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 AT4
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!
GMC Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My service appointment was swift and professional.
My service appointment was swift and professional. All of my cars needs were addressed. Rosie is an amazing customer representative. She is always upfront and professional.
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
The staff was very friendly, the service was done quickly
The staff was very friendly, the service was done quickly and I received a complimentary car wash which was a nice thing. I would recommend this location! Great job!
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Claudia Arredondo took care of me.
Claudia Arredondo took care of me. I?m satisfied with the service work done on my vehicle. Thank you again for your service and look forward to visiting you in the future
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
They're very easy to deal with and had a great price.
They're very easy to deal with and had a great price. I was very happy with the deal that I got on my Grand Cherokee
Used
2021 GMC Sierra 1500 AT4
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.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2021 GMC Sierra 1500 Denali
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
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Steven and Jon were Amazing help throughout the whole
Steven and Jon were Amazing help throughout the whole process! I'll definitely be back and will refer them to everyone I know. They were helpful from first contact to delivery of the vehicle!
Vehicle information
Features
Reviews
Very professional, great group.
Very professional, great group. Last Tesla I bought was purchased from a group that sells 50-65 teslas a month (idrive in Carrolton tx). Auto Boutique surprised me, and managed a Tesla sale like a group that sells 10x more of these technically challenging vehicles. They got the car added to my Tesla app quickly and I left the dealership able to supercharge and drive 6 hours to my home. The young guys ( Ethen Beck and Enrique Ovalles) were very Tesla literate. I'm a contributor to a tesla owners forum and have over 4 million content views, so I'm not a Tesla Newbie. I have a 2016 model s p85, a 2021 model y dual motor, and now a 2021 refresh model s long range to replace the aging ap1 car. These guys had the recurrent battery report in addition to the carfax so I could skip checking the battery. Staff went into service mode and we checked the error log. They got an update to post before adding the car and so I drove off in great shape!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Alex is great.
Alex is great. I needed extensive repairs that took a week but Alex kept me apprised of the status of my vehicle. He also secured my Veterans discount.
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.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $62,187 | 1 Good deal |
| 2025 GMC Sierra 1500 | $59,463 | 10 Great deals |
| 2024 GMC Sierra 1500 | $50,797 | 20 Good deals |
| 2023 GMC Sierra 1500 | $47,579 | 8 Great deals |
| 2022 GMC Sierra 1500 | $47,096 | 6 Good deals |
| 2020 GMC Sierra 1500 | $34,043 | 11 Good deals |
| 2019 GMC Sierra 1500 | $32,891 | 11 Good deals |
| 2018 GMC Sierra 1500 | $27,688 | 2 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 $37,583, with pricing starting at $13,999.
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.
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Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 by city
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2021 GMC Sierra 1500 in Deer Park, TX
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4 Great Deals out of 33 listings starting at $25,450
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2021 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.
