New GMC Sierra 1500 AT4 for Sale near Whitby, ON

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Whitby, ON

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2026 GMC Sierra 1500

New car

$84,208

Aurora, ON

45 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: ONYX BLACK
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 9
Stock number:: 2671B-new
VIN:: 3GTUUEE86TG200317

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2026 GMC Sierra 1500

New car

$86,007

Port Perry, ON

92 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Silver
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 99
Stock number:: Z245137
VIN:: 1GTUUEE89TZ245137

2026 GMC Sierra 1500

New car

$86,089

Richmond Hill, ON

40 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: Black
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 0
Stock number:: TG211511
VIN:: 3GTUUEEL7TG211511

2026 GMC Sierra 1500

New car

$86,883

Grimsby, ON

90 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Black
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 746
Stock number:: T235
VIN:: 3GTUUEE88TG154635

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2026 GMC Sierra 1500

New car

$87,559

Cobourg, ON

62 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Brown (Beige / Tan)
Fuel type:: Diesel
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 8
Stock number:: T22598
VIN:: 3GTUUEE80TG122598

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2026 GMC Sierra 1500

New car

$87,984

Cobourg, ON

62 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Metallic
Fuel type:: Diesel
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 1
Stock number:: T24641
VIN:: 3GTUUEE87TG124641

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2026 GMC Sierra 1500

New car

$88,764

Port Hope, ON

53 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 22
Stock number:: 26323
VIN:: 3GTUUEE81TG202816

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2026 GMC Sierra 1500

New car

$88,837

Port Perry, ON

92 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 99
Stock number:: G154191
VIN:: 3GTUUEE89TG154191

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2026 GMC Sierra 1500

New car

$89,183

Cobourg, ON

62 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Onyx Black
Fuel type:: Diesel
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 5
Stock number:: T89115
VIN:: 3GTUUEE83TG189115

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2026 GMC Sierra 1500

New car

$89,379

Cobourg, ON

62 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Brown (Beige / Tan)
Fuel type:: Diesel
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 7
Stock number:: T04277
VIN:: 3GTUUEE87TG204277

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2026 GMC Sierra 1500

New car

$89,484

Cobourg, ON

62 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Summit White
Fuel type:: Diesel
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 8
Stock number:: T56018
VIN:: 3GTUUEE85TG156018

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2026 GMC Sierra 1500

New car

$89,879

Port Hope, ON

53 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Black
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 5
Stock number:: 26298
VIN:: 3GTUUEE88TG204014

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2026 GMC Sierra 1500

New car

$89,914

Oshawa, ON

7 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: SUMMIT WHITE
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 10
Stock number:: 260274-new
VIN:: 3GTUUEEL2TG205700

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2026 GMC Sierra 1500

New car

$90,682

Grimsby, ON

90 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: Black
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 114
Stock number:: T147
VIN:: 3GTUUEEL5TG107437

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2026 GMC Sierra 1500

New car

$90,923

Niagara Falls, ON

86 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 25
Stock number:: 431B12201
VIN:: 3GTUUEE85TG140692

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2026 GMC Sierra 1500

New car

$91,021

Barrie, ON

78 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 90
Stock number:: TG119552
VIN:: 3GTUUEE85TG119552

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2026 GMC Sierra 1500

New car

$91,021

Barrie, ON

78 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 90
Stock number:: TG120622
VIN:: 3GTUUEE85TG120622

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2026 GMC Sierra 1500

New car

$91,107

Bolton, ON

62 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 528
Stock number:: 117012
VIN:: 3GTUUEE87TG117012

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2026 GMC Sierra 1500

New car

$91,218

Georgetown, ON

82 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: White
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 91
Stock number:: 42004
VIN:: 3GTUUEEL7TG149074

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2026 GMC Sierra 1500

New car

$91,324

Port Hope, ON

53 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: White
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 0
Stock number:: 26304
VIN:: 3GTUUEEL5TG212186

Reviews

FAQs

5 Overall rating

(2 reviews)

Anonymous

5.0

Reviewed a 2019 GMC AT4 Crew Cab 4WD on Sep. 08, 2024

The truck had all the features I wanted and the price was in-line, or better with others in my search.

Amjad I

5.0

Reviewed a 2019 GMC AT4 Crew Cab 4WD on Aug. 06, 2024

Great prices. The truck that I purchased is in good condition and it looks like that it was serviced.

GMC Sierra 1500 AT4 FAQs

What is the fuel economy of the GMC Sierra 1500 AT4?

Depending on the engine and options, the GMC Sierra 1500 AT4 gets between 9 and 14 MPG (or MPGe).

What fuel types are available?

Diesel, Gasoline engines are available.