Used GMC Cars for Sale near Unionville, ON

1,183 results

Markham, ON

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2022 GMC Sierra 1500 Limited

AT4 Crew Cab 4WD

88,773 kilometres

$46,490

Good Deal

36 km away

Year:: 2022
Make:: GMC
Model:: Sierra 1500 Limited
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: Blue
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 88,773
Stock number:: 90596
VIN:: 1GTP9EEL8NZ204777

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2020 GMC Terrain

Denali AWD

142,807 kilometres

$21,814

Fair Deal

Niagara Falls, ON

87 km away

Year:: 2020
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 252 hp 2L I4
Exterior colour:: Silver
Combined gas mileage:: 10 L/100km
Fuel type:: Gasoline
Transmission:: 9-Speed Automatic
Mileage:: 142,807
Stock number:: 20246
VIN:: 3GKALXEX5LL292024

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2024 GMC Sierra 1500

AT4 Crew Cab 4WD

56,000 kilometres

$62,905

Fair Deal

Barrie, ON

63 km away

Year:: 2024
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:: 14 L/100km
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 56,000
Stock number:: P2600-1
VIN:: 3GTUUEEL2RG292765

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2023 GMC Sierra 1500

Elevation Crew Cab 4WD

35,840 kilometres

$48,700

Great Deal

Mississauga, ON

41 km away

Year:: 2023
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 355 hp 5.3L V8
Exterior colour:: White
Combined gas mileage:: 13 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 35,840
Stock number:: 19558
VIN:: 3GTUUCED7PG336138

2024 GMC Terrain

SLE AWD

89,081 kilometres

$23,900

Great Deal

Innisfil, ON

57 km away

Year:: 2024
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: All-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior colour:: Summit White
Combined gas mileage:: 9 L/100km
Fuel type:: Gasoline
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 89,081
Stock number:: 24-73877JB
VIN:: 3GKALTEG5RL273877

2017 GMC Acadia

Denali AWD

142,843 kilometres

$19,580

Great Deal

Toronto, ON

22 km away

Year:: 2017
Make:: GMC
Model:: Acadia
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 310 hp 3.6L V6
Exterior colour:: Black
Combined gas mileage:: 11 L/100km
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 142,843
Stock number:: 118236
VIN:: 1GKKNXLS9HZ118236

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2019 GMC Savana Cargo

2500 RWD

88,424 kilometres

$24,980

Great Deal

North York, ON

21 km away

Year:: 2019
Make:: GMC
Model:: Savana Cargo
Body type:: Van
Doors:: 3 doors
Drivetrain:: Rear-Wheel Drive
Exterior colour:: White
Transmission:: Automatic
Mileage:: 88,424
Stock number:: 333938
VIN:: 1GTW7AFG7K1333938

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2018 GMC Sierra 1500

SLT Crew Cab 4WD

206,750 kilometres

$20,995

Great Deal

Milton, ON

65 km away

Year:: 2018
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 355 hp 5.3L V8
Exterior colour:: Blue
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 206,750
Stock number:: D9415
VIN:: 3GTU2NER6JG328679

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2021 GMC Savana Cargo

2500 Extended RWD

90,457 kilometres

$25,900

Great Deal

Etobicoke, ON

36 km away

Year:: 2021
Make:: GMC
Model:: Savana Cargo
Body type:: Van
Doors:: 3 doors
Drivetrain:: Rear-Wheel Drive
Exterior colour:: White
Transmission:: Automatic
Mileage:: 90,457
Stock number:: 178504
VIN:: 1GTW7BFP8M1178504

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2018 GMC Terrain

SLT AWD

173,346 kilometres

$13,888

Great Deal

Toronto, ON

22 km away

Year:: 2018
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Gray
Transmission:: Automatic
Mileage:: 173,346
Stock number:: 251837
VIN:: 3GKALVEX4JL251855

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2025 GMC Sierra 1500

AT4 Crew Cab 4WD

36,545 kilometres

$65,781

Great Deal

Port Perry, ON

75 km away

Year:: 2025
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:: 10 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 36,545
Stock number:: 226545U
VIN:: 3GTUUEE88SG226545

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2023 GMC Terrain

SLE AWD

185,445 kilometres

$15,980

Great Deal

North York, ON

21 km away

Year:: 2023
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: All-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior colour:: White
Combined gas mileage:: 9 L/100km
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 185,445
Stock number:: 115773
VIN:: 3GKALTEG8PL115773

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2023 GMC Sierra 1500

Denali Crew Cab 4WD

79,350 kilometres

$51,200

Great Deal

Guelph, ON

93 km away

Year:: 2023
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 355 hp 5.3L V8
Exterior colour:: Black
Combined gas mileage:: 13 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 79,350
Stock number:: 25-427A
VIN:: 3GTUUGED0PG114578

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2025 GMC Sierra 1500

AT4 Crew Cab 4WD

49,509 kilometres

$60,995

Great Deal

Aurora, ON

22 km away

Year:: 2025
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:: 10 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 49,509
Stock number:: US4061
VIN:: 3GTUUEE84SG185590

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2024 GMC Sierra 1500

Elevation Crew Cab 4WD

38,033 kilometres

$51,978

Great Deal

Uxbridge, ON

26 km away

Year:: 2024
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Red
Interior colour:: Black
Transmission:: Automatic
Mileage:: 38,033
Stock number:: 263964A
VIN:: 3GTUUCE88RG357666

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2024 GMC Sierra 1500

SLE Crew Cab 4WD

29,798 kilometres

$46,988

Great Deal

Guelph, ON

91 km away

Year:: 2024
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Silver
Interior colour:: Gray
Transmission:: Automatic
Mileage:: 29,798
Stock number:: RG103717
VIN:: 3GTPUBEK8RG103717

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2024 GMC Sierra 1500

Denali Crew Cab 4WD

30,992 kilometres

$61,995

Great Deal

Mississauga, ON

41 km away

Year:: 2024
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:: 14 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 30,992
Stock number:: 19509
VIN:: 3GTUUGEL9RG247074

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2023 GMC Sierra 1500

AT4 Crew Cab 4WD

34,420 kilometres

$54,995

Great Deal

Mississauga, ON

40 km away

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 colour:: Red
Combined gas mileage:: 14 L/100km
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 34,420
Stock number:: 800458A
VIN:: 3GTUUEEL3PG217778

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2024 GMC Terrain

Denali AWD

37,461 kilometres

$32,988

Great Deal

Guelph, ON

91 km away

Year:: 2024
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: All-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior colour:: Black
Combined gas mileage:: 9 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 37,461
Stock number:: RL107103
VIN:: 3GKALXEG8RL107103

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2022 GMC Sierra 1500

Elevation Crew Cab 4WD

153,885 kilometres

$35,488

Great Deal

St Catharines, ON

79 km away

Year:: 2022
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Black
Transmission:: Automatic
Mileage:: 153,885
Stock number:: SC1926A
VIN:: 3GTPUCEK3NG659711

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2017 GMC Sierra 1500

SLT Crew Cab 4WD

167,369 kilometres

$21,500

Great Deal

Innisfil, ON

57 km away

Year:: 2017
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 355 hp 5.3L V8
Exterior colour:: Summit White
Fuel type:: Gasoline
Interior colour:: Jet Black
Transmission:: Automatic
Mileage:: 167,369
Stock number:: 17-24597JB
VIN:: 3GTU2NEC2HG224597

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2024 GMC Sierra 1500

Elevation Crew Cab 4WD

68,565 kilometres

$46,995

Great Deal

Mississauga, ON

41 km away

Year:: 2024
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 355 hp 5.3L V8
Exterior colour:: Gray
Combined gas mileage:: 14 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 68,565
Stock number:: 19905
VIN:: 3GTUUCED1RG191729

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2018 GMC Acadia

SLE-2 AWD

226,514 kilometres

$11,880

Good Deal

North York, ON

21 km away

Year:: 2018
Make:: GMC
Model:: Acadia
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: White
Transmission:: Automatic
Mileage:: 226,514
Stock number:: 68545
VIN:: 1GKKNSLS2JZ233429

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Reviews

4.5 Overall rating

(1,566 reviews)

Customers say

GMC offers a lineup of trucks and SUVs that are generally praised for their reliable performance, spacious interiors, and towing capabilities. Owners appreciate their rugged design and the comfort they provide, especially in models like the Sierra and Yukon. However, common criticisms include fuel economy issues and high pricing for some models. Despite these drawbacks, GMC vehicles are often recognized for their power, luxurious features, and off-road capabilities, making them solid choices for both daily driving and rugged use.

AI generated from the text of customer reviews.

What people say

comfort fuel economy interior performance power

Michael S

5.0

Reviewed a 2021 GMC SLT 4WD on Apr. 26, 2026

Getting the diesel was the best decision! Far superior to the gasoline engine options.

Derek S

5.0

Reviewed a 2023 GMC Acadia on Nov. 17, 2025

Has all of the added features and technology of a high end luxury SUV without the price tag!! Ride is exceptionally smooth even for AT4!!

Aristotle A

5.0

Reviewed a 2022 GMC Denali Ultimate Crew Cab 4WD on Oct. 16, 2025

Love this truck! Love the inline 6 diesel! And my fiance loves the massaging seats!

Pamela S

5.0

Reviewed a 2016 GMC Canyon on Jul. 03, 2025

Truck was totaled by another driver hitting me and every airbag deployed all around and saved my life

Bruce S

5.0

Reviewed a 2025 GMC Denali Ultimate 4WD on Apr. 22, 2025

This by far the nicest vehicle I've ever owned. There is not one feature missing from this beautiful automobile. The Denali trim is already amazing, but the Denali Ultimate it amazing!