Used 2023 GMC Sierra 2500HD for Sale nearDenver, CO

How much does the 2023 GMC Sierra 2500HD cost?

Prices have softened 7.49% compared to this time last year, making it a favorable time to shop this model year.

There are 3,557 listings available, which suggests solid inventory for comparison shopping.

If you find a listing below $55,337.28, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2023 GMC Sierra 2500HD a good car?

Generally — the 2023 GMC Sierra 2500HD earns a 4/5 user rating, which points to strong overall shopper satisfaction.

The overview shows a heavy-duty pickup that mixes work-truck capability with a more upscale presentation than many rivals. You also get a broad spread of trims, cab styles, bed lengths, and available comfort and tech features, so you can tailor it to work, family, or premium-use needs.

With 29.9% of listings marked as good or great deals, you have a meaningful chance to find a competitive offer if you shop carefully.

Is the 2023 GMC Sierra 2500HD reliable?

Owners rate it 4/5, a solid signal of long-term satisfaction.

The overview also points to a truck built around familiar heavy-duty hardware, with a 6.6-liter V8 gas engine and an available 6.6-liter Duramax turbodiesel V8. That said, used buyers should pay close attention to reported fourth-generation issues such as check engine lights, infotainment sluggishness, rough or delayed shifts, electrical glitches, MultiPro tailgate issues, and faulty trailer brake controllers.

For long-term ownership, your biggest risk is buying a truck with unresolved mechanical or electrical problems that can become expensive after the sale.

What should I look for when buying a used 2023 GMC Sierra 2500HD?

Accident-free inventory is solid at 89.5% — always verify the vehicle history report.

You should start with a history report to confirm accident status, title status, and service records before you get too far into the process. After that, prioritize a thorough inspection of the transmission behavior, infotainment operation, tailgate function, and trailer-brake equipment, since those are the kinds of areas that can matter most on a used heavy-duty truck.

Focus on overall condition as well, especially if the truck has been used for towing or job-site duty, because wear can show up quickly in a vehicle like this.

Is now a good time to buy a used 2023 GMC Sierra 2500HD?

This looks like a moderate, selective buyer's market, so you can shop with some leverage if you stay disciplined.

• Deal availability: 29.9% of listings are priced as good or great deals.
• Inventory: There are 3,557 listings available.
• Price trend: Prices have softened 7.49% compared with last year.
• Clean inventory: 89.5% of listings are accident-free.

If you find a listing below $55,337.28, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2023 GMC Sierra 2500HD's resale value?

The current average of $55,320 sits slightly below last year's $59,800.

That price movement suggests the market has cooled, which can help you buy more selectively today but may also limit short-term upside if you plan to resell soon. For a future seller, the good news is that a truck with broad trim and configuration appeal can still attract buyers across multiple use cases.

Vehicles with solid owner satisfaction ratings, like this model year's 4/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2023 GMC Sierra 2500HD or consider a different year?

If you're weighing the 2023 against nearby model years, here's how to think about it:

Choose the 2023 if:

• 29.9% of listings are priced as good or great deals.
• Accident-free inventory is solid at 89.5% — always verify the vehicle history report.
• Price trend: Prices have softened 7.49% compared with last year.
• Owners rate it 4/5 — a solid satisfaction signal.

Consider the 2022 if:

• At $51,235, the 2022 costs less than the current year's $55,320 average.
• It offers capable towing with useful trailering tech.

Consider the 2024 if:

• At $67,037, the 2024 costs more than the current year's $55,320 average.
• It adds the Denali Ultimate and more luxury-focused capability.

The bottom line: The 2023 is the best all-around path if you want a premium-feeling heavy-duty truck with a softer market price than the newer model. If you are more price-sensitive, the 2022 is the smarter value play; if you want the newest upscale features and can stretch your budget, the 2024 is the upgrade path to consider.

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