Used GMC Sierra 2500HD for Sale nearOakville, ON

How much does the GMC Sierra 2500HD cost in today's market?

Used GMC Sierra 2500HD prices span a wide range depending on model year. Here's what the market looks like right now:

The GMC Sierra 2500HD's current nationwide average price is $69,593 CAD, and its lowest point over the past year was $66,568 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 2500HD a good car?

Yes — the GMC Sierra 2500HD is a strong choice if you want heavy-duty capability with a more premium feel. The all-generations owner rating is 4.49/5 across every model year in the data.

Owners consistently praise its power, towing ability, and comfortable ride, and they also value the upscale features and refined cabin experience. Across the model years, the Sierra 2500HD is repeatedly described as a truck that works hard while still feeling comfortable and well equipped. Buyers also tend to appreciate its strong performance in demanding tasks and its broad appeal for both work and everyday use.

Expert reviews rate the 2024 and 2022 models among the highest across all years.

The main trade-offs are fuel consumption, parking bulk, and the premium pricing that comes with higher trims and equipment. Some recent expert-tested versions also bring a firm ride and a large footprint, which are part of the truck’s heavy-duty character.

29.4% of listings are priced as good or great deals.

Are GMC Sierra 2500HD models reliable?

Owners consistently praise the Sierra 2500HD for its power, towing strength, comfort, and premium-feeling features. The strongest recurring themes are smooth performance, strong capability, and a cabin that feels more upscale than many heavy-duty rivals.

• Owners rate the GMC Sierra 2500HD between 3.5 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk depends on the specific year and how the truck was maintained, so a careful inspection and service-history review are especially worthwhile.

What should I look for when buying a used GMC Sierra 2500HD?

Key things to evaluate:

• Safety package: GMC Sierra HD standard active safety features include automatic emergency braking, forward collision warning, pedestrian detection, and lane departure warning, while the Denali Ultimate adds front and rear parking sensors, a surround-view parking camera, adaptive cruise control, rear cross-traffic alert, blind-spot monitoring, and a rear-facing cargo bed camera.
• Infotainment: The Denali Ultimate features a 13.4-inch screen with wireless Apple CarPlay and Android Auto connectivity, a wireless device charging pad, Google built-in, a 12-speaker Bose surround-sound audio system, and split-screen navigation.
• Fuel efficiency: During long highway stints the Duramax diesel dipped as low as 11.2 litres per 100 kilometres.

Which GMC Sierra 2500HD trim should I buy?

The 2024 GMC Sierra 2500HD offers these trims:

• Pro: The entry point for the lineup, suited to buyers who want the Sierra HD’s core work-truck capability.
• SLE: Adds more equipment while staying close to the value end of the range.
• SLT: A strong step up if you want more comfort and convenience features for daily use.
• AT4: The off-road-oriented choice, with skid plates, off-road suspension upgrades, and a more robust transfer case.
• Denali: The luxury-focused trim for buyers who want a more premium cabin and upscale presentation.
• AT4X: The upgraded off-road trim for shoppers who want the most capability-focused hardware in the lineup.
• Denali Ultimate: The top trim and the best-value choice if you want the fullest mix of luxury, technology, and heavy-duty capability in one package.

What GMC Sierra 2500HD do most buyers choose?

The GMC Sierra 2500HD years with the most listings are 2024, 2023, and 2025.

These higher-volume years tend to be the most popular because they give you more inventory to compare, more pricing spread, and more chances to find the right trim and configuration. They also tend to attract shoppers looking for newer features without moving all the way to the newest model year.

What is the GMC Sierra 2500HD's resale value?

Most model years in the table are moving lower year over year, which is good news if you are shopping used and want more room to negotiate. A few older years are holding steady or rising, showing that some Sierra 2500HD models continue to command strong demand. The biggest drops are concentrated in the newer and mid-cycle years, while the older examples show more mixed movement.

The 2021 model year is holding steady, with prices close to flat year-over-year.

The 2016, 2020, and 2018 model years have held their value best, with prices flat to rising year-over-year.

Is the GMC Sierra 2500HD safe?

• 2024: 9/10
• 2022: 8/10

The GMC Sierra HD comes standard with automatic emergency braking, forward collision warning, pedestrian detection, and lane departure warning, while the Denali Ultimate adds front and rear parking sensors, a surround-view parking camera, adaptive cruise control, rear cross-traffic alert, blind-spot monitoring, and a rear-facing cargo bed camera.

For the safest used buy, the 2024 model posts the highest confirmed score of 9/10.

Should I buy a used GMC Sierra 2500HD now or wait for the next model?

Buy now if:

• Price trend: The 2025 model is at −7.19% versus a year ago, and the 2024 model is at −7.63%.
• Deal availability: The 2025 model has 28.3% good and great deals, and the 2024 model has 30.2%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $77,981 CAD. The GMC Sierra 2500HD offers a premium-feeling cabin and strong heavy-duty presence that make it appealing across the lineup.

Consider waiting if:

• Powertrain/efficiency: The latest model pairs a 6.6-litre Duramax turbocharged diesel V8 with 470 horsepower and 975 lb-ft of torque, plus a 10-speed Allison automatic transmission and standard four-wheel drive.
• Tech: The latest model adds a 13.4-inch screen, a 15-inch multi-colour head-up display, wireless Apple CarPlay and Android Auto connectivity, wireless device charging, Google built-in, and a 12-speaker Bose surround-sound audio system.
• Safety: The latest model adds front and rear parking sensors, a surround-view parking camera, adaptive cruise control, rear cross-traffic alert, blind-spot monitoring, and a rear-facing cargo bed camera.
• Starting price: The 2024 GMC Sierra 2500 Denali Ultimate heavy-duty pickup truck has a base price of $125,630 CAD.

If you're buying used today, the 2024 model year offers the best mix of value and availability. If you want the latest tech and features, 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 13, 2026, CarGurus experts' opinions, and generative AI.