Used 2020 GMC Sierra 3500HD for Sale nearVancouver, BC

How much does the 2020 GMC Sierra 3500HD cost?

Prices have softened 3.65% compared to this time last year, making it a favourable time to shop this model year.

There are 68 listings available, which gives you a modest amount of choice in the market.

Is the 2020 GMC Sierra 3500HD a good car?

Yes — the 5/5 user rating points to strong owner satisfaction. Owners consistently praise its impressive performance when pulling heavy loads, along with a comfortable, well-built feel. The review summary also highlights that many owners value its strong track record compared with competitors like Ford and Ram. For you, that makes it a compelling fit if you want a heavy-duty truck that can handle serious towing while still feeling more polished than a basic workhorse. With 32.4% of listings marked as good or great deals, there is also a healthy amount of market opportunity if you shop carefully.

Is the 2020 GMC Sierra 3500HD reliable?

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

The owner feedback points to a truck that feels dependable and well-built, especially for buyers who plan to use it for heavy-duty work. The summary also suggests owners trust it for demanding towing duties, which is a useful sign if you want something you can count on over time. For used buyers, the main long-term ownership risk is less about day-to-day satisfaction and more about making sure the truck has been maintained properly for hard use.

Is now a good time to buy a used 2020 GMC Sierra 3500HD?

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you are patient and focused.

• Deal availability: 32.4% of listings are priced as good or great deals.
• Inventory: There are 68 listings available.
• Price trend: Prices have softened 3.65% compared with last year.

If you find a listing below $57,097 CAD, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 GMC Sierra 3500HD's resale value?

The current average of $61,665 CAD sits slightly below last year's $64,000 CAD.

That softer pricing can work in your favour if you buy now, because you may be entering at a more favourable point in the cycle. For a future seller, it also suggests there is some room for value stability if the truck is kept in strong condition and presented well. Heavy-duty trucks with broad appeal tend to hold attention when they combine capability with a strong ownership reputation.

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 2020 GMC Sierra 3500HD or consider a different year?

If you're weighing the 2020 against nearby model years, here's how to think about it:

Choose the 2020 if:

• 32.4% of listings are priced as good or great deals.
• Price trend: Prices have softened 3.65% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: If you want the strongest mix of current pricing, owner satisfaction, and heavy-duty capability, the 2020 is the primary year to target. If your priority is stretching your budget further, a nearby year may be worth considering, but the 2020 stands out as the better all-around choice for shoppers who want a refined, capable one-ton truck and are willing to pay for that balance.

These recommendations are based on CarGurus' proprietary market data from October 20, 2026, CarGurus experts' opinions, and generative AI.