Shop New
Shop Used
My Favourites
Can't Miss Deals
Model Research
Cars
Trucks
SUVs
Vans
Motorcycles
Electric Vehicles
Hybrid Vehicles
Featured Cars
Zero Percent Financing
News & Events
English
English
Français
Filters (2)
Filters (2)
Year
Make
Model
Price
Search Cars
Home
/
GMC Trucks for Sale in St. Thomas, Ontario
21 GMC Trucks for Sale in St. Thomas, Ontario
Location St. Thomas, Ontario
Sort Relevance
Relevance
Added: Newest to Oldest
Added: Oldest to Newest
Price: Low to high
Price: High to Low
Mileage: Low to High
Mileage: High to low
Make: A to Z
Make: Z to A
New
·
St. Thomas, ON
2025 GMC Canyon
Crew Cab Short Box 4-Wheel Drive Denali
3 km
$69,237
New
·
St. Thomas, ON
2025 GMC Sierra EV
e4WD Crew Cab Max Range Denali
3 km
$118,622
New
·
St. Thomas, ON
2025 GMC Sierra EV
e4WD Crew Cab Extended Range Denali
4 km
$115,117
New
·
St. Thomas, ON
2025 GMC Sierra EV
e4WD Crew Cab Max Range Denali
3 km
$118,691
New
·
St. Thomas, ON
2025 GMC Sierra 1500
Crew Cab Short Box 4-Wheel Drive Denali
3,464 km
$92,297
New
·
St. Thomas, ON
2025 GMC Sierra 1500
Crew Cab Short Box 4-Wheel Drive Elevation
3 km
$76,632
New
·
St. Thomas, ON
2024 GMC Sierra 1500
Crew Cab Short Box 4-Wheel Drive Denali
12,054 km
$86,435
New
·
St. Thomas, ON
2025 GMC Sierra 1500
Regular Cab Standard Box 4-Wheel Drive Pro
3,465 km
$55,175
New
·
St. Thomas, ON
2024 GMC Sierra 1500
Crew Cab Short Box 4-Wheel Drive Denali
82 km
$86,305
New
·
St. Thomas, ON
2025 GMC HUMMER EV Pickup
e4WD Crew Cab 2X
4 km
$135,156
New
·
St. Thomas, ON
2025 GMC HUMMER EV Pickup
e4WD Crew Cab 2X
18 km
$136,666
New
·
St. Thomas, ON
2025 GMC Sierra 1500
SLE
4 km
$66,222
New
·
St. Thomas, ON
2025 GMC Sierra 1500
AT4
26 km
$82,882
New
·
St. Thomas, ON
2025 GMC Sierra 1500
Elevation
220 km
$77,052
Free CARFAX
Used
·
St. Thomas, ON
2016 GMC Sierra 1500
SLE
221,369 km
$22,989
Free CARFAX
Used
·
St. Thomas, ON
2015 GMC Sierra 1500
SLE
197,532 km
Not Priced
Free CARFAX
Used
·
St. Thomas, ON
2022 GMC Canyon
AT4 w/Leather
109,749 km
Not Priced
Photos coming soon
Free CARFAX
Used
·
St. Thomas, ON
2018 GMC Sierra 1500
4WD Double Cab Standard Box
156,234 km
Not Priced
Free CARFAX
New
·
St. Thomas, ON
2021 GMC Sierra 1500
SLE
118,175 km
Not Priced
Free CARFAX
Used
·
St. Thomas, ON
2024 GMC Sierra 2500HD
Denali
12,351 km
Not Priced
Photos coming soon
Free CARFAX
Used
·
St. Thomas, ON
2019 GMC Sierra 1500
SLT
128,282 km
Not Priced
1
Results per page
24
24
48
72
96
Back to top
Buyer Resources
Find a Car
New Vehicle Inventory
Used Vehicle Inventory
Can't Miss Deals
Cars Confidence Price Badging
Featured Can't Miss Deals
For Dealers
Dealer Sign Up
Model Research
Cars
Trucks
SUVs
Vans
Motorcycles
Electric Vehicles
Hybrid Vehicles
Featured Cars
Zero Percent Financing
About Cars.ca
Our Team
Contact Us
Terms Of Use
Privacy
Data Consent Policy
Accessibility Policy
Copyright © 2025 Cars.ca. All rights reserved.