Used GMC Sierra 2500HD for Sale near Harrow, 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 $67,823 CAD, and its lowest point over the past year was $66,531 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 pick if you want heavy-duty capability with a more polished feel. The all-generations owner rating is 4.5/5 across every model year in the data.

Owners consistently praise its power, towing ability, comfortable ride, and upscale features. The truck also earns repeat praise for strong performance, smooth handling, and a cabin that feels comfortable 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 thirst, parking bulk, and reported quality or reliability concerns in some years, especially around infotainment behaviour, shifting, tailgate operation, and diesel-related warning lights.

31.0% of listings are priced as good or great deals.

Are GMC Sierra 2500HD models reliable?

Owners and experts consistently praise the Sierra 2500HD for strong power, towing confidence, and a comfortable ride. The truck also gets repeated credit for upscale features and a refined feel that suits both work and leisure use.

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

For used buyers, long-term ownership risk is best managed by checking service history closely and paying extra attention to reported electrical, transmission, infotainment, and diesel-system concerns.

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

Key things to evaluate:

• Safety package: automatic emergency braking, forward collision warning, pedestrian detection, lane departure warning, 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 on the Denali Ultimate.
• Infotainment: a 13.4-inch screen with wireless Apple CarPlay and Android Auto connectivity, wireless device charging pad, Google built-in, 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. At suburban/city speeds, however, we routinely saw economy ratings crest well beyond 20 L/100 km.

Which GMC Sierra 2500HD trim should I buy?

The 2024 GMC Sierra 2500HD offers these trims:

• Pro: The entry point for the lineup, with regular cab or double cab availability and the most straightforward work-truck setup.
• SLE: A value-focused step up that still keeps the truck practical, with regular cab or double cab availability.
• SLT: A stronger choice if you want more comfort and equipment while staying below the off-road and luxury trims.
• AT4: The off-road-oriented trim, with 4WD standard and hardware such as 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 features.
• AT4X: The upgraded off-road trim, combining the AT4’s rugged focus with additional equipment.
• Denali Ultimate: The top trim, with nearly every available option, a six-passenger Crew Cab, and the most premium presentation in the lineup.

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 draw more shoppers because they offer a wider mix of trims, prices, and availability. When inventory is deeper, it is usually easier to compare condition, equipment, and deal quality across multiple listings.

What is the GMC Sierra 2500HD'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 couple of older years are moving in the opposite direction, showing that some versions are still commanding stronger prices. Overall, the pattern favours shoppers looking for recent-model bargains, especially where the declines are steepest.

The 2016, 2020, and 2015 model years have held their value best, with the smallest year-over-year price changes.

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 −12.01% versus a year ago, and the 2024 model is at −6.71%.
• Deal availability: The 2025 model has 31.8% good and great deals, and the 2024 model has 31.1%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $77,722 CAD. The GMC Sierra 2500HD offers a more upscale cabin and a polished heavy-duty character that many buyers appreciate.

Consider waiting if:

• Powertrain/efficiency: Unlike the standard Sierra HD trims that offer a 6.6-litre V8 gas engine as standard, the sole engine found under the helipad-size hood of the HD Denali Ultimate is a 6.6-litre Duramax turbocharged diesel V8. It produces power specs of 470 horsepower and, wait for it, a staggering 975 lb-ft of torque.
• Tech: This includes a 15-inch multi-colour head-up display, wireless Apple CarPlay and Android Auto connectivity, wireless device charging pad, Google built-in, 12-speaker Bose surround-sound audio system, and split-screen navigation.
• Safety: The GMC Sierra HD comes standard with both of these features, along with others such as pedestrian detection and lane departure warning. 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 are optional features, and all are standard on the Denali Ultimate.
• Starting price: The 2024 GMC Sierra 2500 Denali Ultimate heavy-duty pickup truck has a base price of $125,630.

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.

How does the 2025 GMC Sierra 2500HD compare to the 2025 Ford F-250 Super Duty?

The 2025 GMC Sierra 2500HD carries a higher average used price, but it also has more listings and a stronger share of good and great deals. That gives you more inventory to compare, while the Ford F-250 Super Duty sits at a lower average price with fewer listings.

These recommendations are based on CarGurus' proprietary market data from November 4, 2026, CarGurus experts' opinions, and generative AI.