Used 2015 GMC Sierra 2500HD for SaleNationwide

How much does the 2015 GMC Sierra 2500HD cost?

Prices have softened 7.71% compared to this time last year, making it a favorable time to shop this model year.

There are 600 listings available, which gives you a solid pool to compare prices and equipment.

Is the 2015 GMC Sierra 2500HD a good car?

Yes — the 5/5 user rating points to strong owner satisfaction. Owners consistently praise its strong performance, luxurious features, and comfortable ride, and many highlight the powerful Duramax engine and smooth handling. The overview also shows why it appeals to you if you want a heavy-duty truck that can double as a more refined daily driver, with uncommon features for the segment and a broad range of trims and body styles. With 29.8% of listings marked as good or great deals, there is still meaningful shopping opportunity.

Is the 2015 GMC Sierra 2500HD reliable?

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

The user feedback points to a truck that many owners find dependable, with praise centered on strong performance and a smooth, confidence-inspiring driving experience. That kind of feedback suggests you can count on it for demanding use if the truck has been maintained well. For used buyers, the main long-term ownership risk is less about owner sentiment and more about making sure individual trucks have been cared for, since condition can vary widely.

What should I look for when buying a used 2015 GMC Sierra 2500HD?

At 64.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report so you can separate clean trucks from those with prior damage or repeated claims. Then prioritize a thorough pre-purchase inspection, especially for electrical behavior, transmission operation, infotainment function, and signs of uneven wear or rust. Because this model can show build-quality and mechanical issues, condition matters more than mileage alone.

Is now a good time to buy a used 2015 GMC Sierra 2500HD?

This is a moderate, selective buyer’s market, so you can shop patiently but should move quickly when a strong listing appears.

• Deal availability: 29.8% of listings are priced as good or great deals.
• Inventory: There are 600 listings available.
• Price trend: Prices have softened 7.71% compared with last year.
• Clean inventory: 64.2% of listings are accident-free.

If you find a listing below $28,368, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2015 GMC Sierra 2500HD's resale value?

The current average of $28,558 sits slightly below last year's $30,944.

That decline suggests the market has already adjusted downward, which can help you buy at a more favorable entry point today. For a future seller, it means resale value may be steadier if you buy well and keep the truck in strong condition, but you should not expect rapid appreciation. Trucks with clean histories and desirable equipment typically hold buyer interest better, especially when the market already shows active demand.

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

Should I buy a 2015 GMC Sierra 2500HD or consider a different year?

If you're weighing the 2015 against nearby model years, here's how to think about it:

Choose the 2015 if:

• 29.8% of listings are priced as good or great deals.
• At 64.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 7.71% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: You should focus on the 2015 if you want the combination of heavy-duty capability, upscale features, and strong owner approval, especially when you find a clean truck with a fair price. If you are more price-sensitive, a nearby year may be worth considering, but the 2015 remains a compelling choice when condition and history check out.

These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.