New GMC Sierra 1500 AT4 for Sale near Seguin, ON

168 results

Parry Sound, ON

Sort by:

2026 GMC Sierra 1500

New car

$81,078

Trenton, ON

234 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:: 7940
VIN:: 3GTUUEE80TG100990

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$83,249

Whitby, ON

185 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:: G349169
VIN:: 3GTUUEE85TG349169

2026 GMC Sierra 1500

New car

$83,768

Richmond Hill, ON

169 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:: 10
Stock number:: TG243760
VIN:: 3GTUUEE87TG243760

2026 GMC Sierra 1500

New car

$84,959

Whitby, ON

185 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:: 10
Stock number:: Z340383
VIN:: 1GTUUEE86TZ340383

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Whitby, ON

185 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:: Z354194
VIN:: 1GTUUEE87TZ354194

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Whitby, ON

185 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
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: Z351986
VIN:: 1GTUUEE83TZ351986

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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
Interior colour:: Black
Transmission:: Automatic
Mileage:: 99
Stock number:: Z366522
VIN:: 1GTUUEE83TZ366522

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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
Interior colour:: Black
Transmission:: Automatic
Mileage:: 99
Stock number:: Z366684
VIN:: 1GTUUEE87TZ366684

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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:: 99
Stock number:: Z366825
VIN:: 1GTUUEE8XTZ366825

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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
Interior colour:: Black
Transmission:: Automatic
Mileage:: 99
Stock number:: Z365412
VIN:: 1GTUUEE82TZ365412

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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
Interior colour:: Black
Transmission:: Automatic
Mileage:: 99
Stock number:: Z366088
VIN:: 1GTUUEE82TZ366088

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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:: 99
Stock number:: Z366978
VIN:: 1GTUUEE82TZ366978

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$84,959

Port Perry, ON

101 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:: 99
Stock number:: Z366380
VIN:: 1GTUUEE89TZ366380

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,171

Alliston, ON

134 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

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,274

Whitby, ON

185 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

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,274

Port Perry, ON

101 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:: 99
Stock number:: Z272492
VIN:: 1GTUUEE8XTZ272492

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,369

Oshawa, ON

186 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
Transmission:: Automatic
Mileage:: 326
Stock number:: 260729-new
VIN:: 3GTUUEE88TG300063

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

185 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

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

185 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

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

185 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

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,882

Trenton, ON

234 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
Stock number:: 8824
VIN:: 1GTUUEE86TZ290150

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$85,989

Bolton, ON

168 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
Interior colour:: Black
Transmission:: Automatic
Mileage:: 4,597
Stock number:: 117012
VIN:: 3GTUUEE87TG117012

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$86,014

Whitby, ON

185 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

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$86,014

Whitby, ON

185 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

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.