New GMC Sierra 3500HD for Sale near Connaught, 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 $75,090 CAD, and its lowest point over the past year was $71,428 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 is a strong choice if you want heavy-duty capability with broad appeal across work and daily use. 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. They also frequently highlight the comfortable ride and spacious interior, which help it work well as both a jobsite truck and a daily driver. 30.2% of listings are priced as good or great deals.

Are GMC Sierra 3500HD models reliable?

Owners consistently praise the Sierra 3500HD for its strong towing ability, durable construction, and dependable-feeling performance. The available expert and owner feedback also points to a truck that delivers the kind of capability and comfort heavy-duty buyers tend to value.

• 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.

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 attract more shoppers because they combine newer features, broader trim availability, and stronger inventory depth. That gives you more choice across price points and equipment levels, which helps popular model years stay active in the used market.

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

Most model years in the table are moving lower year over year, which creates better buying conditions for used shoppers. A few older years are flat to rising, showing that some Sierra 3500HD examples continue to command steady demand. The biggest drops are concentrated in the newer model years, which can make recent trucks especially interesting if you want modern features at a softer price.

The 2016 and 2019 model years are holding steady, with prices close to flat year-over-year.

The 2018, 2015, and 2016 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 −15.78% versus a year ago, and the 2024 model is at −4.53%.
• Deal availability: The 2025 model has 35.8% good and great deals, and the 2024 model has 30.3%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $81,496 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 6, 2026, CarGurus experts' opinions, and generative AI.