Used 2025 GMC Sierra 3500HD for Sale nearLondon, ON

How much does the 2025 GMC Sierra 3500HD cost?

Prices have softened 16.43% compared to this time last year, making it a favourable time to shop this model year.

There are 182 listings available, which gives you a reasonable amount of inventory to compare before you decide.

Is the 2025 GMC Sierra 3500HD a good car?

Yes — 5/5 is a strong user rating for the 2025 GMC Sierra 3500HD, and it fits a truck built for serious work capability with a broad range of trims and equipment. The overview points to a model that can be configured for basic job-site duty or more upscale towing and hauling, with multiple cab styles, bed lengths, and rear-axle setups to suit different needs. If you want a heavy-duty truck with clear towing focus and a more refined upper end, this model year has a strong case. 27.5% of listings are priced as good or great deals, which gives you some room to shop selectively.

Is the 2025 GMC Sierra 3500HD reliable?

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

The overview suggests a truck designed around durability and capability, with serious towing and hauling numbers and a wide spread of configurations that let you match the truck to the job. For used buyers, the main long-term ownership risk is less about the truck’s purpose and more about whether a specific example has been used hard, so condition and maintenance history matter a lot.

Is now a good time to buy a used 2025 GMC Sierra 3500HD?

It looks like a moderate, selective buyer’s market, so you can shop patiently and still find worthwhile listings.

• Deal availability: 27.5% of listings are priced as good or great deals.
• Inventory: There are 182 listings available.
• Price trend: Prices have softened 16.43% compared with last year.

If you find a listing below $91,494 CAD, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2025 GMC Sierra 3500HD's resale value?

The current average of $92,840 CAD sits slightly below last year's $111,090 CAD.

That softer pricing can help you buy in at a more favourable point, but it also means future resale may depend heavily on how much further the market moves and how well the truck is equipped. A well-kept example with the right towing features and desirable trim content should be easier to move later than a stripped or heavily used work truck. Because this model year still carries strong buyer interest, you may see steadier demand than you would for a less capable heavy-duty truck.

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 2025 GMC Sierra 3500HD or consider a different year?

If you're weighing the 2025 against nearby model years, here's how to think about it:

Choose the 2025 if:

• 27.5% of listings are priced as good or great deals.
• Price trend: Prices have softened 16.43% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: If you want a heavy-duty GMC with strong towing and hauling capability, broad configuration choices, and a market that has eased from last year, the 2025 is the primary year to target. If your priority is stretching your budget further, you should also compare nearby model years to see whether a similar truck with the right equipment is available at a lower asking price.

These recommendations are based on CarGurus' proprietary market data from September 15, 2026, CarGurus experts' opinions, and generative AI.