New GMC Sierra HD at College Park GM
The GMC Sierra 2500 and 3500 trucks are the workhorses built to conquer even the toughest of tasks. The GMC Sierra HD provides unrivalled comfort and capability, making it an excellent choice for any job site. These heavy-duty pickup truck models can easily handle the toughest tasks with their impressive maximum towing capacity of up to 36,000 lbs and best-in-class front head and leg room in its crew cab configuration. Find your 2025 Sierra HD model here at College Park GM in Vermilion, Alberta.
Exterior
Model-Exclusive Styling
For the 2025 model year, GMC has given the Sierra 2500 and 3500 HD models a handful of model-exclusive styling accents that give the truck a distinctive look. Owners who opt for the AT4 and AT4X models can expect a truck fitted with off-road ready enhancements that include unique 20-inch wheel designs, beefy all-terrain tires, red tow hooks and skid plates. Conversely, Denali and Denali Ultimate drivers can expect a truck equipped with a distinctive chrome grille design, machined wheel finishes and Denali badging throughout.
Truck Bed Side Step
Accessing your truck bed has never been easier with the GMC Sierra’s standard side bed step. This ingenious side step, located just in front of the rear wheel arches, works in tandem with the GM-exclusive CornerStep rear bumper cutout to provide convenient access into the truck’s rear cargo bed.
Interior
Cabin Comfort
The 2025 GMC Sierra HD is designed to keep the cabin as comfortable as possible in any weather condition, with available features such as a heated steering wheel, heated and ventilated seats, and an advanced HVAC climate control system. Whether you’re going on a long road trip or just running errands around town, the Sierra HD’s features will make every drive enjoyable.
Intelligent Storage
The 2025 GMC Sierra HD models feature intelligent cargo storage compartments that help make everyday life that much more convenient. These include a hidden rear seat storage area, a spacious multi-compartment centre console and several large door panel storage areas for miscellaneous items.
Performance & Capability
Heavy-Duty Powertrain Updates
Updated for the 2025 model year, the Sierra HD’s enhanced 6.6-litre Duramax Turbo-Diesel V8 now boasts a 25% increase in low-end torque, improved engine braking performance and a more powerful turbo vane actuator compared to last year’s model. Paired with an Allison® 10-speed automatic transmission this heavy-duty powertrain is more than capable handling the demands of work and play.
Best-in-Class CrewCab Towing Capacity
Gone are the days of sacrificing capability for practicality as the 2025 GMC Sierra HD combines the best of both worlds, boasting best-in-class crew cab towing capacity. Enjoy the ability to comfortably seat up to five passengers while towing a load of up to 10,010 kgs (22,070 lbs) when equipped with the enhanced 6.6-litre Duramax Turbo-Diesel V8 and the ProGrade Trailering System.
| Specifications | 6.6L Gasoline V8 | Enhanced 6.6L Duramax Turbo-Diesel V8 |
| Horsepower | 401 | 470 |
| Torque (lb-ft) | 464 | 975 |
| Transmission | 6-Speed Automatic | Allison® 10-Speed Automatic |
| Maximum Towing Capacity (kg/lb) | 7,879 / 17,370 | 16,329 / 36,000 |
| Max Payload Capacity (5th Wheel) (kg/lb) | 1,805 / 3,979 | 3,376 / 7,442 |
Technology
Class-Leading 13.4-inch Centre Display
Select 2025 GMC Sierra HD models can be fitted with a GMC’s next-generation infotainment system that houses a host of advanced vehicle connectivity features. This 13.4-inch centre display screen is wireless Apple CarPlay® & Android Auto™ compatible, and is also available with Google Built-in capabilities.
ProGrade Trailering
The ProGrade trailering System offers 5 trailer profiles that can be programmed into the truck to provide a tailored towing experience for a variety of trailer types, enhancing your towing experience when hauling any trailer. Monitor trailer status, including tire pressure and temperature monitoring, jackknife alert, and other features.
Safety & Driver Assistance
GMC Pro Safety
The advanced safety features in the 2025 Sierra HD will enhance your driving experience and increase your awareness of your surroundings. You can drive with confidence and focus on the road ahead with Lane Departure Warning, Front and Rear Park Assist, in-seat safety alert audio and haptic feedback, and other available features.
Adaptive Cruise Control with Trailering
Sit back, relax and enjoy the open road with your trailer in tow. This available new feature allows 2025 GMC Sierra HD pickup truck owners to use an intelligent adaptive cruise control system that accounts for the additional drag and increased braking distances that come with hauling a heavy load.
2025 GMC Sierra HD Trim Levels
Pro
Starting at $68,033*– Rear-Wheel Drive
– LED Headlamps and Daytime Running Lamps
– Trailering Package and Trailering Mirrors
– Wireless Apple CarPlay® & Android Auto™ Compatibility
SLE
Starting at $73,033*– Rear-Wheel Drive
– 13.4-inch Diagonal Centre Touch-Screen
– 12.3-inch Diagonal Driver Information Centre
– GMC MultiPro™ Tailgate
SLT
Starting at $87,933*– Rear-Wheel Drive
– 6.6L V8 Gasoline Engine
– 12.3-inch Diagonal Driver Information Centre
– Dual-Zone Automatic Climate Control
AT4 4WD
Starting at $99,633*– 20-inch Gloss-Black Aluminum Wheels
– Available BFGoodrich® Off-Road Tires
– Off-Road Suspension Package with Twin-Tube Rancho® Shocks
– Heated & Ventilated Perforated Front Leather Seating Surfaces
Denali 4WD
Starting at $103,633*– Authentic Open-Pore Wood Interior Accents
– Forge Perforated Leather Seating Surfaces
– 13.4-inch Diagonal Centre Touch-Screen
– 20-inch Ultra-Bright Machined Wheels with Bright Chrome Inserts
AT4x 4WD
Starting at $115,833*– Factory-Installed 1.5-inch Suspension Lift
– Multimatic™ DSSV Dampers & Rear E-Locking Differential
– Heated & Ventilated 16-Way Power Front Seats with Massage Feature
– 12-Speaker Bose® Premium Series with Centerpoint® Surround Sound
Denali Ultimate 4WD
Starting at $128,733*– 6.6L Duramax Turbo Diesel V8 Engine
– Signature Denali Ultimate Vader Chrome Grille
– Full-Grain Leather Seating, Authentic Open-Pore Paldao Wood
– Illuminated Power Assist Steps and MultiPro Audio System by KICKER®
Explore the 2024 GMC Sierra Heavy Duty pickup truck lineup right here at College Park GM, your preferred dealership for pickup trucks in rural Alberta. Explore our GM lineup of new and used vehicles, and visit our dealership location for all your Chevrolet, Buick, or GMC service and parts. Contact us to get started, today!