New GMC Sierra 3500HD for Sale near Mar, 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 $75,728 CAD, and its lowest point over the past year was $71,229 CAD. That puts the model in a fairly broad pricing band, with newer trucks commanding the highest averages and older ones offering lower entry points.

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 heavy-duty capability with broad trim and configuration flexibility. 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 appreciate the comfortable ride and spacious interior, which help it work well as both a jobsite truck and a daily driver. 32.4% of listings are priced as good or great deals.

Are GMC Sierra 3500HD models reliable?

Owners consistently praise the GMC Sierra 3500HD for its strong towing ability, durable build quality, and comfortable ride. Across the model years in the data, the truck also earns positive feedback for its powerful performance and roomy cabin.

• 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 shaped most by how the truck was used and maintained, especially on higher-mileage heavy-duty examples that may have spent their lives towing or hauling.

What GMC Sierra 3500HD do most buyers choose?

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

These higher-volume years tend to be the most popular used picks because they give you more inventory to compare, more trim and configuration choices, and a better chance of finding the right price and equipment mix. They also tend to attract shoppers looking for newer features while still staying within the used market.

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

Most model years in the table are down year over year, which creates more room for used buyers to find value. A few years are moving up, showing that some older examples are still attracting stronger pricing. The biggest drops are concentrated in the newer and mid-cycle trucks, while the smallest changes appear in the years that have moved the least.

The 2015, 2019, and 2024 model years have held their value best, with the smallest year-over-year price changes.

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 −14.79% versus a year ago, and the 2024 model is at −2.19%.
• Deal availability: The 2025 model has 38.9% good and great deals, and the 2024 model has 31.2%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $82,363 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 October 20, 2026, CarGurus experts' opinions, and generative AI.