New GMC Sierra 1500 AT4 for Sale near Waterdown, ON

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Burlington, ON

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2026 GMC Sierra 1500

New car

$82,912

Newmarket, ON

89 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:: Gray
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 12,750
Stock number:: G101015
VIN:: 3GTUUEEL4TG101015

2026 GMC Sierra 1500

New car

$83,069

Richmond Hill, ON

72 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:: Gray
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
Stock number:: TG243760
VIN:: 3GTUUEE87TG243760

2026 GMC Sierra 1500

New car

$85,171

Alliston, ON

93 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 2
Stock number:: 18402
VIN:: 3GTUUEE86TG255995

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2026 GMC Sierra 1500

New car

$85,274

Whitby, ON

98 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: Z324605
VIN:: 1GTUUEE86TZ324605

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2026 GMC Sierra 1500

New car

$85,274

Whitby, ON

98 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 157
Stock number:: Z302973A
VIN:: 1GTUUEE82TZ302973

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2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

98 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: G278193
VIN:: 3GTUUEEL2TG278193

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2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

98 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:: Gray
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: G277325
VIN:: 3GTUUEELXTG277325

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2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

98 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: G277266
VIN:: 3GTUUEEL9TG277266

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2026 GMC Sierra 1500

New car

$86,014

Whitby, ON

98 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:: Gray
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: G248573
VIN:: 3GTUUEEL5TG248573

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2026 GMC Sierra 1500

New car

$86,014

Whitby, ON

98 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: Z335037
VIN:: 1GTUUEEL0TZ335037

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2026 GMC Sierra 1500

New car

$86,576

Alliston, ON

93 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 43
Stock number:: 18485
VIN:: 3GTUUEE88TG287699

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2026 GMC Sierra 1500

New car

$86,609

Whitby, ON

98 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:: Red
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: Z316418
VIN:: 1GTUUEEL5TZ316418

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2026 GMC Sierra 1500

New car

$86,816

Waterloo, ON

56 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Jet Black with Kalahari accents
Transmission:: Automatic
Mileage:: 15
Stock number:: 267124
VIN:: 3GTUUEE81TG318999

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2026 GMC Sierra 1500

New car

$87,319

Cambridge, 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: 260753
VIN:: 3GTUUEEL0TG326113

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2026 GMC Sierra 1500

New car

$87,399

Toronto, ON

49 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 233
Stock number:: TG189658
VIN:: 3GTUUEE88TG189658

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2026 GMC Sierra 1500

New car

$87,785

Waterloo, ON

56 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:: Onyx Black
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Jet Black with Kalahari accents
Transmission:: Automatic
Mileage:: 15
Stock number:: 267100
VIN:: 1GTUUEEL2TZ296385

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2026 GMC Sierra 1500

New car

$87,797

Ingersoll, ON

88 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 303
Stock number:: 26241
VIN:: 3GTUUEE86TG232734

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2026 GMC Sierra 1500

New car

$87,818

Whitby, ON

98 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 204
Stock number:: G129233
VIN:: 3GTUUEEL0TG129233

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2026 GMC Sierra 1500

New car

$87,833

Grimsby, ON

30 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 5
Stock number:: 7OD53642891
VIN:: 3GTUUEE82TG329025

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2026 GMC Sierra 1500

New car

$87,834

Whitby, ON

98 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: Z335095
VIN:: 1GTUUEEL3TZ335095

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2026 GMC Sierra 1500

New car

$87,938

Toronto, ON

49 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 7
Stock number:: TZ296933
VIN:: 1GTUUEE82TZ296933

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2026 GMC Sierra 1500

New car

$88,102

Waterloo, ON

56 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
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 510
Stock number:: 267125
VIN:: 3GTUUEE87TG255021

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2026 GMC Sierra 1500

New car

$88,299

Waterloo, ON

56 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:: Volcanic Red Tintcoat
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Jet Black with Kalahari accents
Transmission:: Automatic
Mileage:: 15
Stock number:: 267117
VIN:: 1GTUUEE81TZ316055

Reviews

FAQs

4 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.

Buddy H

3.0

Reviewed a 2019 GMC AT4 Crew Cab 4WD on Jan. 05, 2025

Slightly over priced for the miles I would pay $29000-$30000 all day

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 15 L/100km (or EV battery range).

What fuel types are available?

Diesel, Gasoline engines are available.