Skip to main content

Contact seller

Contact seller

By clicking here, you authorize Cars.com and its sellers/partners to contact you by text/calls which may include marketing and be by autodialer. Calls may be prerecorded. You also agree to our Privacy Notice. Consent is not required to purchase goods/services.

We value your privacy. Cars.com Privacy Notice

Customize your budget

Est. max vehicle price based on your desired monthly budget (...% APR*. and ...% sales tax)
$...*
See matching cars

*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 AT4 trucks for sale near Keller, TX

Filters 6 Year Trim Model Price & payment Make Mileage Ext. color All filters
22 matches 30 miles from 76248
Be the first to know!

Save your search and get notified when new inventory arrives.

Prequalify now

It only takes a few minutes and won't affect your credit.

Get Prequalified
Est. $400 /mo*
Down Payment
$0
Net trade-in value
$0
Months
72
APR
7.0%
Sales tax
0.0%

Vehicle information

Ext. color: Dark Sky Metallic
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 #: MZ348188
VIN: 1GTP9EED8MZ348188

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Remote Start
Entertainment: Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, 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

Vandergriff Acura review

I am Very happy with the service I received from

I am Very happy with the service I received from Vandergriff Acura Arlington on May 1, 2024. George Hardwick went over and above helping me do an oil change on my 2020 Alfa Romero. He was very pleasant and efficient. He is one of the reasons my wife and I purchased this Alfa Romero and 3 other car from this dealership over the years.

2021 GMC Sierra 1500 AT4 review

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.

Vehicle information

Ext. color: Satin Steel Metallic
Int. color: Jet Black with Kalahari accents
Drivetrain: Four-wheel Drive
MPG: 16-21
Fuel type: Gasoline
Transmission: 10-Speed A/T
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: 5360765A
VIN: 3GTP9EED8MG443771

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

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

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...

There are additional matching cars outside your search area.

Sorted by premium dealers first

Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.

As a benefit to some of our dealer customers, we display their listings first.

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

Vehicle information

Ext. color: Summit White
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 #: 250279A
VIN: 1GTU9EET7MZ280377

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, 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

Vehicle information

Ext. color: Summit White
Int. color: Jet Black w/Kalahari Accents
Drivetrain: Four-wheel Drive
MPG: 16-21
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: MG212130
VIN: 3GTP9EEDXMG212130

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

Vehicle information

Ext. color: Onyx Black
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 #: TT207893
VIN: 3GTP9EEL5MG207893

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

Vehicle information

Ext. color: Summit White
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 #: TT151722
VIN: 1GTP9EEL4MZ151722

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

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 #: MG334431
VIN: 3GTP9EED9MG334431

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, 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

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 #: MZ174862
VIN: 1GTU9EETXMZ174862

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

Vehicle information

Ext. color: Satin Steel Metallic
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 6.2L V8 16V GDI OHV
Stock #: SMG452486
VIN: 3GTP9EEL0MG452486

Features

Convenience: Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Power Folding Mirrors, Remote Start
Entertainment: Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior: Alloy Wheels, Tow Hitch, Tow Hooks
Safety: Backup Camera, Brake Assist, Stability Control
Seating: Leather Seats, Memory Seat
  • Prev
  • 1
  • 2
  • Next

GMC Sierra 1500 prices by year

Model year Prices from Deals
2025 GMC Sierra 1500 AT4 $62,240 4 Good deals

*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.

22 matches Clear
Clear
Basics
GMC models
Sierra 1500 trims
Price & payment Full Price Monthly
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.
Financing
Deal rating
Vehicle history
Awards
Style
Body style
Vehicle size
Cab type
Exterior color
Interior color
Performance
Transmission
Drivetrain
Cylinders
Fuel type
EV range
EV charge time
Features
Convenience
Entertainment
Exterior
Safety
Seating
Door count
Seller info
Seller type
Keyword
Update
Show only

Used 2021 GMC Sierra 1500 AT4 by city

GMC Sierra 1500 trims

[{"applied_filter_criteria":"{\"cpo_indicator\":false,\"make_model_trim\":[{\"trim\":\"at4\",\"make\":\"gmc\",\"model\":\"sierra_1500\"}],\"max_year\":\"2021\",\"min_year\":\"2021\",\"search_range\":\"30\",\"shippable\":true,\"sort_field\":\"searchRank1\",\"sort_order\":\"desc\",\"stock_type\":\"used\"}","search_type":"general-inventory-search","vehicle_array":[{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"21901","certified_preowned":false,"listing_id":"b6e49a89-e0ba-4af2-b44f-f2912fee1dfe","mileage":"51505","stock_type":"Used","model":"Sierra 1500","sponsored":false,"nvi_program":false,"exterior_color":"Dark Sky Metallic","fuel_type":"Gasoline","interior_color":"Jet Black w/Kalahari Accents","vin":"1GTP9EED8MZ348188","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Vandergriff Acura","dealer_zip":"76017","seller_type":"dealership","price":"44040","sponsored_type":"standard","bodystyle":"Truck","cpo_indicator":false,"badges":[],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":0,"stock_sub":"","vertical_position":1},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"21672","certified_preowned":false,"listing_id":"6533c403-36a2-47ac-b8d7-67dff7fb5992","mileage":"83308","stock_type":"Used","model":"Sierra 1500","sponsored":false,"nvi_program":false,"exterior_color":"Satin Steel Metallic","fuel_type":"Gasoline","interior_color":"Jet Black with Kalahari accents","vin":"3GTP9EED8MG443771","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Sewell Buick GMC of Dallas","dealer_zip":"75209","seller_type":"dealership","price":"39991","sponsored_type":"standard","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":22,"stock_sub":"","vertical_position":2},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"5393256","certified_preowned":false,"listing_id":"58d2e853-5746-4a21-a729-9241ae343e4f","mileage":"126218","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Cardinal Red","fuel_type":"Gasoline","interior_color":"Jet Black w/Kalahari Accents","vin":"3GTP9EEL3MG238673","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Patriot Honda","dealer_zip":"73401","seller_type":"dealership","price":"36900","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["fair_deal","price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":38,"stock_sub":"","vertical_position":3},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"2476425","certified_preowned":false,"listing_id":"ccae2686-0984-4053-82de-d9b4b452470c","mileage":"118254","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Summit White","fuel_type":"Diesel","interior_color":"Jet Black","vin":"1GTU9EET7MZ280377","msrp":null,"drivetrain":"Four-wheel Drive","dealer_name":"SouthWest Ford","dealer_zip":"76087","seller_type":"dealership","price":"37886","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":11,"stock_sub":"","vertical_position":4},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"6060648","certified_preowned":false,"listing_id":"26d64e3e-8bce-45a2-abb1-ef95c931b6e5","mileage":"52830","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Summit White","fuel_type":"Gasoline","interior_color":"Jet Black w/Kalahari Accents","vin":"3GTP9EEDXMG212130","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Autos of Forney","dealer_zip":"75126","seller_type":"dealership","price":"42959","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal","price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":2,"stock_sub":"","vertical_position":5},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"6000413","certified_preowned":false,"listing_id":"6386b1d8-7009-4b3c-ad2b-494c69d0521e","mileage":"46057","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Onyx Black","fuel_type":"Gasoline","interior_color":"Jet Black w/Kalahari Accents","vin":"3GTP9EEL5MG207893","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Freedom Buick GMC by Ed Morse","dealer_zip":"75402","seller_type":"dealership","price":"44995","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":10,"stock_sub":"","vertical_position":6},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"6000413","certified_preowned":false,"listing_id":"d04557b5-81e3-4224-8742-5c930d7c43b2","mileage":"67693","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Summit White","fuel_type":"Gasoline","interior_color":"Jet Black w/Kalahari Accents","vin":"1GTP9EEL4MZ151722","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Freedom Buick GMC by Ed Morse","dealer_zip":"75402","seller_type":"dealership","price":"42995","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":10,"stock_sub":"","vertical_position":7},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"5358030","certified_preowned":false,"listing_id":"34baeccc-946b-470d-9283-27d522bdffcd","mileage":"95651","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Summit White","fuel_type":"Gasoline","interior_color":"Jet Black w/Kalahari Accents","vin":"3GTP9EED9MG334431","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"El Dorado Chevrolet","dealer_zip":"75070","seller_type":"dealership","price":"41495","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["fair_deal","price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":34,"stock_sub":"","vertical_position":8},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"6069787","certified_preowned":false,"listing_id":"a249327f-ea96-4e00-882f-d6cc5a3b48c9","mileage":"89376","stock_type":"Used","model":"Sierra 1500","sponsored":false,"nvi_program":false,"exterior_color":"Satin Steel Metallic","fuel_type":"Diesel","interior_color":"Jet Black w/Kalahari Accents","vin":"1GTU9EETXMZ174862","msrp":"0","drivetrain":"Four-wheel Drive","dealer_name":"Always Auto","dealer_zip":"76301","seller_type":"dealership","price":"38500","sponsored_type":"search_expansion|radius_non_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal","price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":37,"stock_sub":"","vertical_position":9},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","customer_id":"106743","certified_preowned":false,"listing_id":"7ae5bb45-c929-410f-8e73-b31476c2f7d6","mileage":"61578","stock_type":"Used","model":"Sierra 1500","sponsored":true,"nvi_program":false,"exterior_color":"Satin Steel Metallic","fuel_type":"Gasoline","interior_color":"Jet Black","vin":"3GTP9EEL0MG452486","msrp":null,"drivetrain":"Four-wheel Drive","dealer_name":"Texoma Hyundai","dealer_zip":"75090","seller_type":"dealership","price":"42999","sponsored_type":"search_expansion|radius_paid","bodystyle":"Truck","cpo_indicator":false,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":0,"stock_sub":"","vertical_position":10}],"sponsored_type_eligible":["inventory_ad"]}]