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Used 2021 GMC Sierra 1500 AT4 trucks for sale near Highland Village, TX

Filters 6 Year Trim Model Price & payment Make Mileage Ext. color All filters
22 matches 30 miles from 75077
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Est. $400 /mo*
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.

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Used

2021 GMC Sierra 1500 AT4

45,548 mi.
$44,991
Est. $830/mo*
Free CARFAX 1-Owner Report
Sewell Buick GMC of Dallas
(65 reviews)
Dallas, TX (21 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Summit White
Int. color: Jet Black with Kalahari accents
Drivetrain: Four-wheel Drive
MPG: 22-26
Fuel type: Diesel
Transmission: 10-Speed A/T
Engine: Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
Stock #: 5364005B
VIN: 3GTU9EET1MG443346

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Sewell Buick GMC of Dallas review

I have purchased cars from Sewell in the past and once

April 28, 2025
By Melissa Griffith from Dallas

I have purchased cars from Sewell in the past and once again, their service and inventory is SUPERIOR! We are so happy with our vehicle and the overall experience!

2021 GMC Sierra 1500 AT4 review

This truck has a jerk when changing gears sometimes.

May 8, 2024
By Arvonia McWilliams
Owns this car

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.

No photo available

Used

2021 GMC Sierra 1500 AT4

51,452 mi.
$44,991
Est. $830/mo*
Free CARFAX 1-Owner Report
Sewell Buick GMC of Dallas
(65 reviews)
Dallas, TX (21 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Summit White
Int. color: Jet Black with Kalahari accents
Drivetrain: Four-wheel Drive
MPG: 15-19
Fuel type: Gasoline
Transmission: 10-Speed A/T
Engine: EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
Stock #: 5377923A
VIN: 3GTP9EEL6MG354871

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat

Reviews

Sewell Buick GMC of Dallas review

The best used car deal I have ever made.

September 2, 2025
By Pedro Perez from Forney, Tx

The best used car deal I have ever made. First time buying with Sewell and had a great experience.

2021 GMC Sierra 1500 AT4 review

Brake Pad Monitor

October 17, 2023
By Ernie from Exeland, Wisconsin
Owns this car

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...

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2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4 View all 38 photos

Used

2021 GMC Sierra 1500 AT4

126,219 mi.
$33,985 $515 price drop
Est. $627/mo*
Free CARFAX Report
Patriot Honda
Ardmore, OK (78 mi.)

Vehicle information

Ext. color: Cardinal Red
Int. color: Jet Black w/Kalahari Accents
Drivetrain: Four-wheel Drive
MPG: 14-19
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
Stock #: PH3297
VIN: 3GTP9EEL3MG238673

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat, Third Row Seating
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4 View all 27 photos

Used

2021 GMC Sierra 1500 AT4

59,564 mi.
$41,103
Est. $759/mo*
Get the AutoCheck Report
Paris Chevrolet GMC
Paris, TX (97 mi.)

Vehicle information

Ext. color: Summit White
Int. color: Jet Black w/Kalahari Accents
Drivetrain: Four-wheel Drive
MPG: 14-19
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
Stock #: 250619B
VIN: 3GTP9EEL3MG247972

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Stability Control
Seating: Leather Seats, Memory Seat
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4 View all 29 photos

Used

2021 GMC Sierra 1500 AT4

85,964 mi.
$38,000
Est. $701/mo*
Free CARFAX Report
Hiley Hyundai of Fort Worth
Fort Worth, TX (34 mi.)

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 6.2L V8 16V GDI OHV
Stock #: Z6024A
VIN: 3GTP9EEL0MG356891

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4 View all 8 photos

Used

2021 GMC Sierra 1500 AT4

83,045 mi.
$38,237
Est. $706/mo*
Free CARFAX Report
Waxahachie Dodge Chrysler Jeep
Waxahachie, TX (47 mi.)

Vehicle information

Ext. color: Satin Steel Metallic
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG: 16-21
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 5.3L V8 16V GDI OHV
Stock #: N384133A
VIN: 3GTP9EED0MG428147

Features

Convenience: Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Backup Camera, Brake Assist, Stability Control
Seating: Leather Seats, Memory Seat
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4 View all 19 photos

Used

2021 GMC Sierra 1500 AT4

72,689 mi.
$38,522
Est. $711/mo*
Free CARFAX Report
AutoNation Ford Fort Worth
Fort Worth, TX (35 mi.)

Vehicle information

Ext. color: Summit White
Int. color: Jet Black w/Kalahari Accents
Drivetrain: Four-wheel Drive
MPG: 16-21
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: MG189520
VIN: 3GTP9EED5MG189520

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4 View all 16 photos

Used

2021 GMC Sierra 1500 AT4

76,320 mi.
$38,841
Est. $717/mo*
Free CARFAX 1-Owner Report
Hiley Buick GMC of Fort Worth
Fort Worth, TX (35 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: G34624B
VIN: 3GTU9EET8MG376163

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Backup Camera, Brake Assist, Stability Control
Seating: Leather Seats, Memory Seat
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4
2021 GMC Sierra 1500 AT4

Used

2021 GMC Sierra 1500 AT4

117,010 mi.
Not Priced
Get the AutoCheck Report
Dow Autoplex
Mineola, TX (96 mi.)
Call Check availability Check availability

Vehicle information

Ext. color: Satin Steel Metallic
Int. color: Jet Black w/Kalahari Accents
Drivetrain: Four-wheel Drive
MPG: 22-26
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
Stock #: MZ248132
VIN: 1GTU9EET4MZ248132

Features

Convenience: Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety: Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating: Leather Seats, Memory Seat
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GMC Sierra 1500 prices by year

Model year Prices from Deals
2026 GMC Sierra 1500 AT4 $67,184

*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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Sierra 1500 trims
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‡Monthly budget search results are estimated based on a 72-month loan term with $0 down payment, $0 trade-in value, 0.0 % sales tax and 7.0 % APR. Inputs can be personalized using the calculator.
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Used 2021 GMC Sierra 1500 AT4 by city

GMC Sierra 1500 trims
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