Used GMC Sierra 1500 AT4 for Sale near Markham, ON
4,353 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 66,557
- Stock #:
- V43942A
- VIN:
- 1GTP9EELXLZ256422
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
66,557 mi
Park City, UT
1 mi away
Great Deal
$34,747
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 35,093
- Stock #:
- G564A
- VIN:
- 3GTP9EED6MG466658
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
35,093 mi
Paintsville, KY
1 mi away
Good Deal
$42,583
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 76,100
- Stock #:
- G3767A
- VIN:
- 3GTP9EEL7LG451365
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
76,100 mi
Penns Grove, NJ
1 mi away
Great Deal
$35,933
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 80,762
- Stock #:
- J156
- VIN:
- 3GTP9EEL6LG452779
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
80,762 mi
Denver, CO
1 mi away
Fair Deal
$38,995
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 45,492
- Stock #:
- P3445
- VIN:
- 1GTP9EEL5MZ425364
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
45,492 mi
Albion, NY
1 mi away
Great Deal
$38,206
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 48,125
- Stock #:
- G13084A
- VIN:
- 1GTUUEE86PZ299162
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
48,125 mi
Myrtle Beach, SC
1 mi away
Good Deal
$49,667
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 95,987
- Stock #:
- PC290
- VIN:
- 1GTU9EET6MZ303616
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
95,987 mi
Butte, MT
1 mi away
Fair Deal
$36,999
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 31,615
- Stock #:
- 255545
- VIN:
- 3GTU9EET8MG332986
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
31,615 mi
Newberg, OR
1 mi away
Good Deal
$43,198
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 18,394
- Stock #:
- 416158A
- VIN:
- 1GTP9EEL6MZ262708
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
18,394 mi
Watertown, SD
1 mi away
Good Deal
$43,851
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 68,220
- Stock #:
- 26T2109A
- VIN:
- 3GTP9EEL9LG191518
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
68,220 mi
Gilbert, AZ
1 mi away
Good Deal
$40,024
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black W/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 103,649
- Stock #:
- W189443A
- VIN:
- 1GTP9EED7MZ268218
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
103,649 mi
Bradenton, FL
1 mi away
Great Deal
$31,305
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Volcanic Red Tintcoat
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 17,352
- Stock #:
- G4913A
- VIN:
- 3GTUUEEL2SG228926
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
17,352 mi
Claxton, GA
1 mi away
Good Deal
$59,242
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 90,267
- Stock #:
- T123312
- VIN:
- 3GTP9EEL1LG123312
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
90,267 mi
Bradenton, FL
1 mi away
Good Deal
$35,059
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray (Steel Metallic)
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 135,457
- Stock #:
- 26T0502A
- VIN:
- 3GTP9EEL0KG270848
Price drop
-$4,000
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
135,457 mi
Lafayette, LA
1 mi away
Great Deal
$32,995
$28,995
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Titanium
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 41,052
- Stock #:
- G26727A
- VIN:
- 1GTUUEEL2PZ281004
Price drop
-$2,600
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
41,052 mi
O'Fallon, MO
1 mi away
Great Deal
$49,099
$46,499
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- ONYX BLACK
- Interior color:
- JET BLACK W/KALAHARI ACCENTS
- Transmission:
- Automatic
- Mileage:
- 108,595
- Stock #:
- TT260871AA
- VIN:
- 1GTP9EEL2KZ404940
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
108,595 mi
Appleton, WI
1 mi away
Good Deal
$32,349
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 65,934
- Stock #:
- PF0028
- VIN:
- 3GTP9EELXMG336230
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
65,934 mi
Perry, GA
1 mi away
Fair Deal
$42,381
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 67,705
- Stock #:
- TPG333254
- VIN:
- 3GTUUEEL1PG333254
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
67,705 mi
Highlands Ranch, CO
1 mi away
Good Deal
$47,278
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 26,100
- Stock #:
- UG1495A
- VIN:
- 3GTUUEE82SG142155
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
26,100 mi
Albertville, AL
1 mi away
Great Deal
$54,164
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 127,236
- Stock #:
- BG236279
- VIN:
- 1GTP9EEL0MZ236279
Price drop
-$1,496
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
127,236 mi
Burley, ID
1 mi away
Good Deal
$33,994
$32,498
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 23,870
- Stock #:
- UG1630A
- VIN:
- 1GTUUEE8XPZ118306
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
23,870 mi
Albertville, AL
1 mi away
Good Deal
$53,738
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 89,679
- Stock #:
- PF0029
- VIN:
- 1GTUUEE83PZ118986
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
89,679 mi
Perry, GA
1 mi away
Good Deal
$44,181
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black W/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 57,048
- Stock #:
- G253071A
- VIN:
- 3GTUUEE8XPG317727
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
57,048 mi
Bradenton, FL
1 mi away
Good Deal
$44,997
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 138,900
- Stock #:
- 5D023
- VIN:
- 1GTR9EED0KZ283648
2019 GMC Sierra 1500
AT4 Double Cab 4WD
138,900 mi
Bloomington, MN
1 mi away
Good Deal
$25,475
Overview
The GMC Sierra 1500 is a spacious and capable pickup. It is offered in a number of trims providing a wide array of creature comforts. While GMC might be more sooner associated with the chrome-clad Denali variants, the Sierra is also available in more outdoorsy trims, such as the AT4. Designed as a sort of the anti-Denali, the AT4 is designed to get muddy. It features a 2-inch lift, Rancho shocks, upgraded underbody skid plates, an Auto-Trap two-speed transfer case, and a locking rear differential. The AT4 is not without niceties, as it receives a unique black interior with Kalahari accents and a host of creature comforts. The AT4 trim was introduced with the redesigned Sierra 1500 in 2019 and has continued through the 1500’s 2022 model year update.
Key Features
- Gas V8, Duramax Turbodiesel I6
- 2-inch suspension lift w/ Rancho shocks
- Skid plates
- Heated/ventilated front seats, leather upholstery
- Touchscreen infotainment w/ Apple CarPlay, Android Auto
Pricing Details
In Crew Cab configuration, the 2023 GMC Sierra 1500 AT4 carries a $66,700 MSRP. Used examples on CarGurus range from $23,516.00 to $86,403.55 with an average price of $33,374.57. The Sierra 1500 AT4 is available with a number of options packages. The Premium Package adds a number of upgraded driver assistance features. The Technology Package adds a head-up display, bed view camera, and rear camera mirror. The AT4 Preferred Package adds a universal garage door opener, adaptive cruise control, and a power-sliding rear window with a defogger.
Specifications
Performance
Engine
6.2-liter gas V8, 3.0-liter turbodiesel I6
Transmission
Eight-speed automatic (gas), 10-speed automatic (diesel)
Drivetrain
Four-wheel drive (4WD)
Horsepower/Torque
420 hp/460 lb-ft (gas) / 277 hp/460 lb-ft (diesel)
0-60 mph
5.8 seconds
MPG
24 mpg city, 34 mpg highway, 28 combined (6AT) / 26 mpg city, 36 mpg highway, 30 combined (5MT)
Curb weight
4,816 pounds
Dimensions
wheelbase
147.53 inches
length
231.72 inches
width
81.24 inches
height
78.35 inches
4.0 Overall rating
Filter by rating
Anonymous
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Sep 9, 2024
The truck had all the features I wanted and the price was in-line, or better with others in my search.
Is this review helpful?
Buddy H
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Jan 5, 2025
Slightly over priced for the miles I would pay $29000-$30000 all day
Is this review helpful?
FAQs
How much does the GMC Sierra 1500 AT4 cost in Markham, ON?
The average GMC Sierra 1500 AT4 costs about $31,820.84. The average price has decreased by -1.4% since last year. The 284 for sale near Markham, ON on CarGurus, range from $23,516 to $86,404 in price.
How many GMC Sierra 1500 AT4 vehicles in Markham, ON have no reported accidents or damage?
251 out of 284 for sale near Markham, ON have no reported accidents or damage.
What is the fuel economy of the GMC Sierra 1500 AT4?
Depending on the engine and options, the GMC Sierra 1500 AT4 gets between 15 and 24 MPG (or EV battery range).
What fuel types are available?
Diesel, Gasoline engines are available.
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