New GMC Sierra 2500HD for Sale nearStamford, CT

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 $58,060, and its lowest point over the past year was $55,390. 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 comfortable ride and a premium-feeling cabin. The all-generations owner rating is 4.49/5 across every model year in the data.

Owners consistently praise its power, towing ability, and comfort, and they also highlight the truck’s upscale features and smooth handling. Across the model years, the Sierra 2500HD is repeatedly described as a truck that works hard while still feeling pleasant to live with.

Expert reviews rate the 2020 and 2024 models among the highest across all years.

The main trade-offs that show up in expert reviews are fuel thirst, parking-lot bulk, and pricing that can run high for the equipment you get.

31.1% of listings are priced as good or great deals.

Are GMC Sierra 2500HD models reliable?

Owners and experts consistently point to strong power, towing confidence, and a comfortable ride as core strengths of the GMC Sierra 2500HD. Review summaries also repeatedly mention premium-feeling features and solid day-to-day usability, especially in later model years.

• 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 is best managed by checking service history carefully, especially on older trucks where reported electrical, transmission, and build-quality concerns appear more often.

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

Across all model years, accident-free inventory is solid at 84.6% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2021 models.

Key things to evaluate:

• Safety package: the HD Denali Ultimate 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 features a 13.4-inch screen with wireless Apple CarPlay and Android Auto, Google built-in, wireless device charging, split-screen navigation, and a 15-inch multi-color head-up display.

Which GMC Sierra 2500HD trim should I buy?

The 2024 GMC Sierra 2500HD offers these trims:

• Denali Ultimate: This is the top luxury-focused trim, with a 13.4-inch screen, wireless Apple CarPlay and Android Auto, Google built-in, a 15-inch head-up display, a 12-speaker Bose surround-sound system, and a standard MultiPro Tailgate. It also adds the Duramax diesel V8, 10-speed Allison automatic, 4WD, skid plates, hill descent control, a locking rear differential, and a diesel exhaust brake. Best for you if you want the most upscale, fully equipped version.
• Denali: This trim focuses on luxury cabin features and premium presentation, making it a strong choice if you want a high-end heavy-duty truck without going all the way to the top.
• AT4X: This off-road-oriented trim adds hardware and accessories for tougher terrain, including skid plates, off-road suspension upgrades, and a more robust transfer case.
• AT4: This trim adds off-road hardware and accessories such as skid plates, off-road suspension upgrades, and a more robust transfer case.
• SLT: This is the best-value trim if you want a broad mix of comfort, convenience, and capability without stepping into the highest-priced luxury models.
• SLE: This trim gives you a solid middle-ground setup with the core Sierra HD experience and useful equipment.
• Pro: This entry trim gives you the Sierra HD foundation in a straightforward work-truck setup.

What GMC Sierra 2500HD do most buyers choose?

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

These higher-volume model years tend to be the most popular used picks because they give you the broadest selection of listings and a strong mix of pricing and deal availability. That usually makes it easier to compare trims, mileage, and condition before you buy.

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

Most model years are down year over year, which is good news if you’re shopping used because it points to softer pricing across much of the lineup. The biggest drops are concentrated in the older and newer ends of the range, while a few years are falling more slowly. The smallest changes are in the 2018, 2017, and 2020 model years, which suggests those versions have been relatively steadier than the rest.

The 2018, 2017, and 2020 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
• 2020: 8/10

The 2024 model 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.

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 −7.55% versus a year ago, and the 2024 model is at −6.97%.
• Deal availability: The 2025 model has 33.6% good and great deals, and the 2024 model has 33.5%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $72,602. The GMC Sierra 2500HD offers a premium-feeling cabin and strong towing-focused character that make it appealing across model years.

Consider waiting if:

• Powertrain/efficiency: the latest model pairs a 6.6-liter Duramax turbocharged diesel V8 with 470 horsepower and 975 pound-feet of torque, plus a 10-speed Allison automatic transmission and standard 4WD.
• Tech: the latest model adds a 13.4-inch screen, wireless Apple CarPlay and Android Auto, Google built-in, a wireless charging pad, a 15-inch head-up display, and split-screen navigation.
• Safety: the latest model adds 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.
• Starting price: the latest model has a starting price of $92,940.

If you're buying used today, the 2025 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 September 15, 2026, CarGurus experts' opinions, and generative AI.