New GMC Sierra 3500HD for Sale nearGeorgetown, 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 $75,632 CAD, and its nationwide average price reached a low of $71,229 CAD over the past year. 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 is a strong choice if you want a heavy-duty truck with serious capability and broad appeal across model years. The all-generations owner rating is 4.62/5 across every model year in the data.

Owners consistently praise its towing strength, powerful performance, and durable build quality. Many also highlight the comfortable ride and spacious interior, which help it work well for both job-site duty and everyday use. 30.4% of listings are priced as good or great deals.

Are GMC Sierra 3500HD models reliable?

Owners consistently describe the GMC Sierra 3500HD as a durable, hard-working truck with strong towing performance and a solid build. Expert and owner feedback also points to a comfortable cabin and confident capability, especially in well-equipped versions.

• 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 the truck was used and maintained, so a well-kept example with a clear service history is the safest path.

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 wider selection of trims, configurations, and price points. That usually makes it easier to find a truck that fits your needs and budget.

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

Most model years in the table are moving lower year over year, which is helpful if you're shopping used and want recent trucks at softer prices. A few older years are rising, showing that some examples are still in demand. Overall, the pattern favours buyers looking for stronger value on newer used Sierra 3500HD models.

The 2018, 2015, and 2019 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 −5.61%.
• Deal availability: The 2025 model has 35% good and great deals, and the 2024 model has 29.4%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $81,665 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 22, 2026, CarGurus experts' opinions, and generative AI.