Used 2024 GMC Sierra 2500HD for Sale near Niagara Falls, ON

How much does the 2024 GMC Sierra 2500HD cost?

Prices have softened 6.71% compared to this time last year, making it a favourable time to shop this model year.

There are 212 listings available, which gives you a decent amount of choice in the used market.

Is the 2024 GMC Sierra 2500HD a good car?

Generally — 4.2/5 from owners and 8/10 from our experts. The model scores 9/10 across Technology and Safety.

Owners consistently praise its capability, impressive features, and professional-grade feel, and they also value the truck’s overall usefulness. The trade-offs are a thirst for fuel and some concerns around limited colour choices and gas-engine reliability over time. In use, it is aimed at buyers who want a heavy-duty truck that can work hard while still feeling upscale inside.

There are 31.1% of listings priced as good or great deals, which suggests there is still some room to shop selectively.

Is the 2024 GMC Sierra 2500HD reliable?

Owners rate it 4.2/5, a solid signal of long-term satisfaction.

Owners describe it as capable and impressive, and the feedback points to a truck that many buyers can count on for heavy-duty use. The expert drive notes also highlight a high degree of refinement from the diesel powertrain, along with smooth acceleration and strong highway passing power. If you want a used heavy-duty truck, the main long-term ownership risk is that fuel costs and heavy-duty wear items can add up quickly.

What should I look for when buying a used 2024 GMC Sierra 2500HD?

Key things to evaluate:

• Trim level: The Denali Ultimate is the top trim and brings nearly every available option, plus a massive cabin with luxury trimmings. It also gets standard LED headlights and taillights, sequential turn signals, the MultiPro Tailgate, and a six-passenger Crew Cab layout, while lesser trims do not get this full luxury treatment.
• Powertrain: The Denali Ultimate uses a 6.6-litre Duramax turbocharged diesel V8 with 470 horsepower and 975 lb-ft of torque, paired with a 10-speed Allison automatic transmission and standard 4WD. It also adds a locking rear differential, two-speed transfer case, all-terrain tires, heavy-duty air filter, underbody skid plates, hill descent control, and a diesel exhaust brake.
• Safety package: The Sierra HD comes standard with automatic emergency braking, forward collision warning, pedestrian detection, and lane departure warning. On the Denali Ultimate, 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 standard as well.
• Infotainment: The Denali Ultimate gets a 13.4-inch screen, wireless Apple CarPlay and Android Auto, wireless device charging, Google built-in, a 15-inch multi-colour head-up display, a 12-speaker Bose surround-sound audio system, and split-screen navigation.
• Fuel efficiency: During long highway stints, the diesel dipped as low as 11.2 litres per 100 kilometres, while suburban and city driving routinely climbed well beyond 20 L/100 km.

Which 2024 GMC Sierra 2500HD trim should I buy?

The 2024 GMC Sierra 2500HD is offered in 7 trim levels: Pro, SLE, SLT, AT4, Denali, AT4X, Denali Ultimate.

Here's the short version:

• Pro: This is the entry point if you want the Sierra HD nameplate at the lowest cost, but it is the most basic route into the lineup.
• SLE: This is the sensible step up if you want a better-equipped truck without chasing luxury features.
• SLT: This is the better-value choice for many shoppers because it moves you closer to the upscale feel that defines the Sierra HD without going all the way to the top.
• AT4: Choose this if you want the off-road-oriented character and standard 4WD from this point in the lineup.
• Denali: This is the trim for buyers who want a more premium cabin and a stronger luxury focus.
• AT4X: Pick this if you want the most rugged off-road-focused version in the range.
• Denali Ultimate: This is the best fit if you want the most luxurious and fully loaded version, with nearly every available option already included.

From AT4 up, 4WD is standard.

Is now a good time to buy a used 2024 GMC Sierra 2500HD?

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you are patient.

• Deal availability: 31.1% of listings are priced as good or great deals.
• Inventory: There are 212 listings available.
• Price trend: Prices have softened 6.71% compared with last year.

If you find a listing below $76,712 CAD, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2024 GMC Sierra 2500HD's resale value?

The current average of $77,722 CAD sits slightly below last year's $83,313 CAD.

That softer pricing suggests the market has already adjusted downward, which can help you buy more carefully now. For a future seller, it also means resale value may depend heavily on condition, trim, and how well the truck has been maintained. Higher-spec versions with strong equipment and broad buyer appeal should remain easier to move than more basic examples.

Vehicles with solid owner satisfaction ratings, like this model year's 4.2/5, tend to retain buyer demand, which supports resale value over time.

Is the 2024 GMC Sierra 2500HD safe?

The 2024 GMC Sierra 2500HD earns a 9/10 safety score from our experts.

It comes standard with automatic emergency braking, forward collision warning, pedestrian detection, and lane departure warning. On the Denali Ultimate, 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 standard as well. The extra-large power-operated side mirrors also improve visibility along the sides of the truck.

Should I buy a 2024 GMC Sierra 2500HD or consider a different year?

If you're weighing the 2024 against nearby model years, here's how to think about it:

Choose the 2024 if:

• 31.1% of listings are priced as good or great deals.
• Price trend: Prices have softened 6.71% compared with last year.
• Owners rate it 4.2/5 — a solid satisfaction signal.
• The Denali Ultimate is newly added for this model year and brings nearly every available option.

The bottom line: If you want the most up-to-date version of this heavy-duty truck with the newest top trim and a softer used-market price, the 2024 is the one to target. If you are more price-sensitive, a nearby year may still make sense, but the 2024 gives you the freshest mix of luxury, capability, and market value.

How does the 2024 GMC Sierra 2500HD compare to the 2024 Ford F-250 Super Duty?

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