Used 2024 GMC Sierra 2500HD for Sale near Connecticut

How much does the 2024 GMC Sierra 2500HD cost?

Prices have softened 6.93% compared to this time last year, making it a favorable time to shop this model year.

There are 4,167 listings available, which suggests solid inventory for shoppers comparing prices and equipment.

Is the 2024 GMC Sierra 2500HD a good car?

Generally — the 2024 GMC Sierra 2500HD earns a 4.2/5 user rating and an 8/10 expert rating. The model scores 9/10 across Technology and Safety.

Owners consistently praise its professional-grade capability, impressive features, and overall value. The overview also points to a heavy-duty truck that combines serious towing strength with a more upscale feel, which makes it appealing if you want a workhorse that does not feel bare-bones.

The main trade-offs are its fuel thirst and its size, which can make parking feel cumbersome. The expert notes also point to a truck that is best suited to buyers who actually need heavy-duty capability, rather than someone looking for an easygoing daily driver.

Good and great deals account for 31.7% of listings, so you have a meaningful share of the market to compare before you buy.

Is the 2024 GMC Sierra 2500HD reliable?

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

The owner summary points to a truck that feels dependable in day-to-day use, with buyers appreciating its capabilities and the confidence that comes with its professional-grade character. That kind of feedback matters on a heavy-duty truck, where long-term durability and trust in the vehicle’s core systems are a big part of the ownership experience.

The expert notes reinforce that sense of toughness, describing a powertrain and chassis setup built for serious towing and hauling. The cost-effectiveness commentary also suggests the truck is engineered for long-legged use, with a large fuel tank supporting extended driving between fill-ups.

For used buyers, the main long-term ownership risk is that a premium heavy-duty truck can be expensive to keep satisfying if you do not need its full capability or if prior use was especially demanding.

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

Accident-free inventory is excellent at 92.4% — clean inventory, standard diligence applies.

You should still run a vehicle history report and prioritize a pre-purchase inspection, especially on a heavy-duty truck that may have spent time towing or hauling. Focus on overall condition, signs of hard use, and whether the truck’s equipment and features work as expected.

Key things to evaluate:

• Trim level: The Denali Ultimate sits at the top of the lineup with a more upscale cabin, standard MultiPro Tailgate, and a six-passenger Crew Cab layout, while the standard HD models are less lavish and make do with a smaller touchscreen.
• Powertrain: The truck uses a 6.6-liter turbocharged Duramax diesel V8 with a 10-speed Allison automatic transmission and standard 4WD, plus hardware such as a locking rear differential, two-speed transfer case, hill descent control, and a diesel exhaust brake.
• Safety package: Standard equipment includes automatic emergency braking, forward collision warning, lane departure warning, front and rear parking sensors, a surround-view parking camera, pedestrian detection, rear cross-traffic alert, blind-spot monitoring, and a rear-facing cargo bed camera.
• Infotainment: The Denali Ultimate gets a 13.4-inch screen, wireless Apple CarPlay and Android Auto, Google built-in, a 15-inch head-up display, wireless charging, and a 12-speaker Bose surround-sound system.
• Fuel efficiency: During long highway stints, the diesel returned as much as 21 miles per gallon, while suburban and city driving could dip into the single digits.

Which 2024 GMC Sierra 2500HD trim should I buy?

The 2024 GMC Sierra 2500HD is offered in 1 trim level: Denali Ultimate.

Here's the short version:

The Denali Ultimate is the clear choice if you want the most luxurious and most fully equipped version of the Sierra 2500HD. It brings the biggest screen, the richest tech suite, the strongest trailering tools, and the most upscale cabin presentation in the lineup, so it suits you best if you want maximum capability with minimal compromise.

The safety package is standard on this trim, so you do not need to step up further to get the core driver-assistance features.

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

This is a moderate market for selective buyers, with enough inventory and enough deal activity to make comparison shopping worthwhile.

• Deal availability: 31.7% of listings are priced as good or great deals.
• Inventory: There are 4,167 listings available.
• Price trend: Prices have softened 6.93% compared with last year.
• Clean inventory: 92.4% of listings are accident-free.

If you find a listing below $67,025, 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 $67,032 sits slightly below last year's $72,023.

That price movement suggests the market has cooled from where it was a year ago, which can help you as a buyer today but may mean less upside if you plan to resell soon. For a future seller, the key question is whether the truck’s premium equipment and heavy-duty capability continue to hold buyer interest once depreciation has already done some of the work.

Because this model year still has strong demand signals and a solid reputation for capability, well-kept examples should remain easier to move than trucks with obvious wear or incomplete equipment. The strongest resale prospects will likely belong to trucks that present cleanly, show careful ownership, and retain the high-end features buyers expect in this trim.

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, lane departure warning, front and rear parking sensors, a surround-view parking camera, pedestrian detection, rear cross-traffic alert, blind-spot monitoring, and a rear-facing cargo bed camera. The large power-operated mirrors also help improve outward visibility, which is especially useful in a truck this size.

The safety setup is strong for a heavy-duty pickup, and the standard driver-assistance list is broad enough that you do not need to rely on optional equipment for the basics. The main caution is simply that this is a very large truck, so visibility and maneuvering still require extra care in tight spaces.

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:

• 31.7% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 92.4% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 6.93% compared with last year.
• Owners rate it 4.2/5 — a solid satisfaction signal.
• The 2024 stands out for its newly added Denali Ultimate trim, which brings nearly every available option and a distinctly upscale heavy-duty experience.

The bottom line: If you want the most premium version of the Sierra 2500HD and you value the 2024 model’s top-trim equipment, this year is the one to target. If you are more price-sensitive, a nearby year may offer a lower entry point, but the 2024 gives you a compelling mix of strong market availability, softened pricing, and a standout top trim.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.