Used 2024 GMC Sierra 2500HD for Sale nearFort Collins, CO

How much does the 2024 GMC Sierra 2500HD cost?

Prices have softened 7.16% compared to this time last year, making it a favorable time to shop this model year.

There are 4,183 listings available, which suggests solid inventory for comparison shopping.

If you find a listing below $67,040.33, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2024 GMC Sierra 2500HD a good car?

Generally — the 2024 GMC Sierra 2500HD earns 4.2/5 from owners, and its expert rating is 8.00/10. The model scores 9/10 across Technology and Safety.

Owners consistently praise its professional-grade capability, impressive features, and overall value. The review summary also points to its strong capability and the upscale feel of its equipment, which fits a truck aimed at buyers who want more than basic work-truck utility.

The trade-offs are clear: it can be thirsty for fuel, it feels large when parking, and the near-twin Chevrolet Silverado HD is cheaper. That makes the Sierra 2500HD especially appealing if you want heavy-duty strength with a more premium presentation for towing, hauling, and demanding work.

The market also looks reasonably favorable, with 31.0% of listings marked as good or great deals.

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 capable and well equipped, and it also highlights professional-grade appeal and value. That kind of feedback usually lines up with a vehicle that owners feel confident living with over time.

The powertrain is described as refined, with strong acceleration and smooth, confident highway passing. It also avoids the harshness you might expect from a very large diesel truck, which supports the impression of a well-sorted heavy-duty setup.

For used buyers, the main long-term ownership risk is that a truck this capable can be expensive to keep if you inherit neglected maintenance or hard-use wear.

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

Accident-free inventory is excellent at 92.7% — clean inventory, standard diligence applies.

You should still run a vehicle history report and prioritize a pre-purchase inspection, especially if the truck has been used for towing or hauling. Focus on overall condition, signs of heavy-duty wear, and whether the truck’s equipment works as intended.

Key things to evaluate:

• Trim level: The Denali Ultimate sits at the top of the lineup with nearly every available option, a six-passenger Crew Cab, standard LED headlights and taillights, sequential turn signals, and the MultiPro Tailgate. Lower trims use a smaller 8.0-inch touchscreen, so feature gaps are meaningful if you want the most upscale cabin and tech.
• Powertrain: The HD Denali Ultimate uses a 6.6-liter Duramax turbocharged diesel V8 with 470 horsepower and 975 pound-feet of torque, paired with a 10-speed Allison automatic transmission and standard four-wheel drive. It also includes 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: 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.
• Infotainment: The Denali Ultimate features a 13.4-inch screen, a 15-inch multi-color head-up display, wireless Apple CarPlay and Android Auto, wireless device charging, Google built-in, a 12-speaker Bose surround-sound audio system, and split-screen navigation.
• Fuel efficiency: During long highway stints, the Duramax diesel easily stretched as much as 21 miles from each gallon of diesel, 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:

Denali Ultimate: This is the fully loaded choice, and it’s the one to buy if you want the most luxury, the strongest feature content, and the most complete towing and trailering tech in the lineup. It brings the 13.4-inch touchscreen, wireless smartphone integration, Google built-in, the 12-speaker Bose system, the head-up display, and the full ProGrade trailering setup with 14 camera views. It also pairs the diesel powertrain with serious towing hardware, so it suits you best if you want maximum capability without giving up premium comfort.

The safety package includes automatic emergency braking, forward collision warning, lane departure warning, front and rear parking sensors, a surround-view camera, pedestrian detection, rear cross-traffic alert, blind-spot monitoring, and a rear-facing cargo bed camera.

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 know what you want.

• Deal availability: 31.0% of listings are priced as good or great deals.
• Inventory: There are 4,183 listings available.
• Price trend: Prices have softened 7.16% compared with last year.
• Clean inventory: 92.7% of listings are accident-free.

If you find a listing below $67,040.33, 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 $67,037 sits slightly below last year's $72,206.

That price movement suggests the market has cooled, which can help you buy more selectively now. For future resale, it also means your biggest advantage will come from buying well and keeping the truck in strong condition.

Because this model still has strong owner satisfaction and broad appeal among heavy-duty truck shoppers, demand should remain healthy for well-kept examples. Trucks with the right equipment and clean history tend to hold attention better when it’s time to sell.

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?

It earns a 9/10 safety score from our experts.

The truck 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. That gives you a broad active-safety and parking-assistance suite right from the start.

The extra-large power-operated side mirrors also help visibility along the sides and rearward angles, which is especially useful in a truck this size. The main caveat is simply that its bulk still demands careful maneuvering 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:

• 31.0% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 92.7% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 7.16% compared with last year.
• Owners rate it 4.2/5 — a solid satisfaction signal.
• The 2024 model year adds the newly available Denali Ultimate at the top of the lineup, bringing nearly every available option and a more luxury-focused setup.

The bottom line: If you want the most upscale version of the Sierra 2500HD and you value strong towing capability, the 2024 is the right path. If your priority is simply getting heavy-duty capability for less money, a different year or a lower-priced alternative may make more sense for your budget.

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