New GMC Sierra 3500HD for Sale near Campbellcroft, ON

How much does the GMC Sierra 3500HD cost in today's market?

Used GMC Sierra 3500HD prices span a wide range depending on model year. Here's what the market looks like right now:

The GMC Sierra 3500HD's current nationwide average price is $75,607 CAD, and its lowest point over the past year was $71,257 CAD. Recently, prices have come down for the 2023, 2024, and 2025 models, making now a good time to shop recent model years.

Is the GMC Sierra 3500HD a good car?

Yes — the GMC Sierra 3500HD earns strong marks from owners across its model years, and the all-generations owner rating is 4.62/5 across every model year in the data.

Owners consistently praise its towing strength, powerful performance, durable build quality, and comfortable ride. Many also like the spacious interior and the way it works well for both job-site duty and everyday driving. 27.2% of listings are priced as good or great deals.

Are GMC Sierra 3500HD models reliable?

Owners consistently describe the GMC Sierra 3500HD as a tough, capable heavy-duty truck with strong performance and durable construction. Reviews also point to a comfortable cabin and a solid ownership experience, especially for buyers who plan to use it for towing and hauling.

• Owners rate the GMC Sierra 3500HD between 3.0 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is most closely tied to how hard the truck has been worked and how well it has been maintained.

What GMC Sierra 3500HD do most buyers choose?

The GMC Sierra 3500HD years with the most listings are 2024, 2025, and 2023.

These higher-volume years tend to attract more shoppers because they offer a broad mix of trims, configurations, and pricing. They also give you more inventory to compare, which can make it easier to find the right cab, bed, and equipment combination.

What is the GMC Sierra 3500HD's resale value?

Most model years in the table are down year over year, which creates a more favourable buying environment for used shoppers. A few older years have moved higher, showing that some examples continue to command stronger prices. The 2018, 2019, and 2015 model years have held their value best, with prices flat to rising year-over-year.

Should I buy a used GMC Sierra 3500HD now or wait for the next model?

Buy now if:

• Price trend: The 2025 model is at −16.18% versus a year ago, and the 2024 model is at −5.79%.
• Deal availability: The 2025 model has 32.1% good and great deals, and the 2024 model has 25.2%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $81,459 CAD.

If you're buying used today, the 2024 model year offers the best mix of value and availability. If you want the newest version, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.