Sometimes in life you need a serious truck – and it doesn’t get more serious than the 2025 GMC Sierra Heavy Duty. The mighty Sierra 2500 and the even more powerful Sierra 3500 are both absolute workhorses, capable and rugged. Offering both a gas and diesel 6.6L engine, there’s little you won’t be able to haul or pull with this truck. Whether it’s for work or play, the Sierra Heavy Duty has you covered, no matter the task. Come explore the full range of options available across seven available trim levels with the truck experts here at Wheaton Surrey.
New GMC Sierra 2500 and 3500 Inventory
New and popular vehicles at competitive prices.
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Exterior
Six-Function Tailgate
The new GMC MultiPro Tailgate gives the 2025 GMC Sierra HD incredible flexibility and convenience. It can be easily adjusted to allow for better loading, extend for longer loads, or even act as a sturdy work-surface when needed.
Signature Lighting
Light up your worksite with the 2025 Sierra HD’s new LED projector headlamps. Animated sequences help enhance the incredible look of the front grille. Available LED cargo bed and perimeter lighting make loading and unloading easy, even in the dark.
Interior
Power Seating
Get comfortable in your 2025 GMC Sierra HD with available best-in-class 16-way power front seats, with massaging feature. Available heated and ventilated driver and front passenger seats can help keep you cozy warm in the cool Manitoba winters.
Off-Road Comfort
The 2025 GMC Sierra HD AT4X features a trim exclusive Obsidian Rush interior. The full grain leather seating is specially designed to keep you comfortable while driving over rough terrain, and looks incredible.
Performance & Capability
World-Class Towing
The GMC Sierra HD’s available 6.6L Duramax Turbo Diesel V8 engine has been enhanced for 2025. With 470 horsepower and 975 lb.-ft. of torque, this monster engine can pull up to 36,000 lbs. Load up a humpback whale. Tow an empty 18-wheeler. Trailer your F-16 fighter jet to your weekend getaway.
Go Off-Road
The 2025 GMC Sierra HD isn’t afraid to blaze its own trail. The AT4 and AT4X are both designed with off-roading in mind, equipped with off-road suspension, improved ground clearance and enhanced underbody protection.
2025 GMC Sierra HD Engine Capabilities:
| Engine Options: | 6.6L V8 | 6.6L Duramax Turbo-Diesel V8 |
| Horsepower | 401 | 470 |
| Torque (ft.-lb.) | 464 | 975 |
| Towing Capacity (kg / lb) | 10,010 / 22,070 | 16,329 / 36,000 |
| Transmission | Allison 10-Speed Automatic | Allison 10-Speed Automatic |
Technology
Enhanced Trailering
The 2025 GMC Sierra HD has an available Prograde™ Trailering System, allowing you to add up to five custom trailer profiles covering your regular hauling. Link it up to the myGMC app, to monitor and control a range of smart systems in your trailer.
Digital Screens
The Sierra HD has an available 12.3” diagonal driver information display. The fully customizable screen provides you with the information you need most, when you need it. The available tablet-style 13.4” centre touchscreen is the largest in its class.
Safety
Pro Safety
The 2025 Sierra HD comes standard with the GMC Pro Safety system. Features include automatic emergency braking, following distance indicator, forward collision alert, front pedestrian braking, lane keep assist, and automatic high beams.
Hitch Guidance
The available Hitch Guidance feature displays a guideline in the Rear Vision Camera to help you line up your trailer hitch. You can even use it while driving to check up on your trailer in the Rear Vision Camera. Add in Hitch View for an even better look while in Reverse.
2025 GMC Sierra 2500 & 3500 Trim Levels
Pro
Starting at $68,033*
Details:
Key Features:
- 6.6L V8 Gas Engine with Allison 10-speed automatic transmission
- Standard trailering package and trailering mirrors
- Wireless Apple CarPlay and Android Auto™ compatibility
SLE
Starting at $73,033*
Details:
Key Features:
- 13.4” diagonal centre touch-screen
- Traction Select System with Tow/Haul mode
- 17” machined aluminum wheels
SLT
Starting at $87,933*
Details:
Key Features:
- Heated Steering Wheel
- 10-way power heated driver seat with power lumbar and driver memory
- MultiPro Tailgate
AT4
Starting at $99,633*
Details:
Key Features:
- 20” Gloss-Black Aluminum Wheels
- Off-road suspension package with Twin-Tube Rancho Shocks and Skid Plates
- HD Surround Vision
Denali
Starting at $103,633*
Details:
Key Features:
- 20” Ultra-Bright Machined Wheels
- Denali-exclusive authentic open-pore wood
- 12-way heated and ventilated power front seats
AT4X
Starting at $116,428*
Details:
Key Features:
- Multimatic™ DSSV Dampers
- Rear E-Locking Differential
- Obsidian Rush Interior
Denali Ultimate
Starting at $129,228*
Details:
Key Features:
- 6.6L Duramax Turbo Diesel V8 engine
- 12-speaker Bose Premium Series with Centerpoint Surround Sound
- Standard Illuminated Power Assist Steps
Buy the 2025 GMC Sierra HD in Surrey, BC
With world-class towing capability, the 2025 GMC Sierra Heavy Duty has no equal. You should come and experience the raw, rugged power for yourself with our team of truck experts here at Wheaton Surrey. We would love to answer your questions, and maybe set you up with a test drive. We can pre-approve you for financing before you shop. Does your current truck need some tuning up? Book an appointment with our qualified service team today!