2025 GMC Sierra HD | Fort St. John, British Columbia

2025 GMC Sierra Heavy Duty
Fort St. John, British Columbia
Engineered for serious power and trailering, the Sierra HD features the Duramax 6.6L Turbo‑Diesel V8 with Allison 10‑speed automatic transmission, plus advanced ProGrade Trailering technologies and max towing up to 16,329 kg (36,000 lbs.).
Capability
The Duramax 6.6L Turbo‑Diesel V8 paired with an Allison 10-speed automatic delivers up to 16,329 kg (36,000 lbs.) towing. Standard Trailering Package includes trailering mirrors and a trailer brake controller, while available Adaptive Cruise Control with trailering keeps your load steady.


Premium Interior
Available 16‑way power front seats with massage, authentic open‑pore wood trim, and a spacious Crew Cab combine with wireless Apple CarPlay and Android Auto to keep you comfortable and connected.
Advanced Technology
Stay in command with the largest-in-class 13.4" diagonal touchscreen, a 12.3" digital Driver Information Centre, optional Head‑Up Display, and the MultiPro Tailgate Audio System by Kicker for premium sound.

Available Features
- Duramax 6.6L Turbo‑Diesel V8
- Allison 10-speed Automatic Transmission
- Trailering Package & Trailer Brake Controller
- ProGrade Trailering App & Adaptive Cruise Control
- MultiPro Tailgate & Tailgate Audio System
- Up to 13 Camera Views including transparent trailer view
- Wireless Apple CarPlay & Android Auto
- 16‑Way Power Massaging Seats
- 13.4" Touchscreen & 12.3" DIC