New & Used 2025 GMC Sierra 2500HD for Sale near Thornhill, ON

## Summary - With 120 currently listed for sale and an **average price of $94,975.00 CAD**, 24.2% of 2025 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals. - **Favourably reviewed:** Owners rated the 2025 GMC Sierra 2500HD 5 / 5 stars. - **100.0% of 2025 Sierra 2500HD models on CarGurus are accident free**. - The 2025 GMC Sierra 2500HD is known for its upscale design, advanced technology and comfort features, and its robust Duramax diesel engine option. ## Why it stands out The 2025 GMC Sierra 2500HD impresses with its blend of strength and sophistication, making it a leading contender in the heavy-duty pickup segment. This model year benefits from upscale design elements, advanced technology features, and a reputation for comfort that many competitors lack. It comes equipped with many connectivity options, luxury enhancements, and robust performance capabilities thanks to its powerful 6.6-litre V8 engine options. Notable is the Sierra's emphasis on comfort, especially in higher trim levels, which cater to a premium market with features akin to luxury vehicles. Additionally, the Sierra 2500HD remains reliable, with an accident-free rate of 100%! However, prospective buyers should remain aware of potential issues in earlier generations, ensuring a well-informed purchasing decision. ## Other model years to consider - **[2024 GMC Sierra 2500HD](https://www.cargurus.ca/Cars/l-Used-2024-GMC-Sierra-2500HD-c32774)** - Average price: $79,507.00 CAD - Good/great deal percentage: 27.5% - User rating: 4 / 5 - Total listings: 138 - **[2021 GMC Sierra 2500HD](https://www.cargurus.ca/Cars/l-Used-2021-GMC-Sierra-2500HD-c30860)** - Average price: $57,825.00 CAD - Good/great deal percentage: 24.6% - User rating: 5 / 5 - Total listings: 65 - **[2023 GMC Sierra 2500HD](https://www.cargurus.ca/Cars/l-Used-2023-GMC-Sierra-2500HD-c32421)** - Average price: $72,164.00 CAD - Good/great deal percentage: 29.6% - User rating: 4 / 5 - Total listings: 135 This analysis is based on CarGurus' proprietary market data from May 18, 2026, CarGurus experts' opinions, and generative AI.