Used 2020 GMC Sierra 1500 for Sale near Prince Edward Island

How much does the 2020 GMC Sierra 1500 cost?

Prices have softened 12.57% compared to this time last year, making it a favourable time to shop this model year.

There are 486 listings available, which gives you a solid amount of inventory to compare.

Is the 2020 GMC Sierra 1500 a good car?

Generally — the 4.28/5 user rating suggests you’re looking at a well-liked truck. Owners consistently praise the spacious interior, advanced technology, strong performance, smooth ride, and overall value, which fits a full-size pickup that aims for a more upscale feel. If you want a capable truck with a polished cabin and plenty of configuration choices, this model year lines up well with that use case. With 32.1% of listings marked as good or great deals, you still have room to shop selectively.

Is the 2020 GMC Sierra 1500 reliable?

Owners rate it 4.28/5, a solid signal of long-term satisfaction.

The review summary also points to a reliable, trouble-free ownership experience for many drivers, with satisfaction tied to long-term confidence in the truck’s overall package. That said, some owners reported engine-related concerns, so used buyers should pay close attention to maintenance history and any recall work before committing.

Is now a good time to buy a used 2020 GMC Sierra 1500?

This is a moderate market for selective buyers, so you can shop patiently and still find worthwhile listings.

• Deal availability: 32.1% of listings are priced as good or great deals.
• Inventory: There are 486 listings available.
• Price trend: Prices have softened 12.57% compared with last year.

If you find a listing below $36,375 CAD, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 GMC Sierra 1500's resale value?

The current average of $38,301 CAD sits slightly below last year's $43,809 CAD.

That softer pricing can help you buy more truck for the money today, but it also means future resale may depend more heavily on condition, trim, and equipment. If you keep the truck well maintained and choose a desirable configuration, you’re more likely to protect value when it’s time to sell. The current market also suggests buyers are still interested, which helps support pricing stability.

Vehicles with solid owner satisfaction ratings, like this model year's 4.28/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2020 GMC Sierra 1500 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:

• 32.1% of listings are priced as good or great deals.
• Price trend: Prices have softened 12.57% compared with last year.
• Owners rate it 4.28/5 — a solid satisfaction signal.

Consider the 2021 if:

• At $39,859 CAD, the 2021 costs more than the current year's $38,301 CAD average.
• It adds a carbon-fibre composite cargo bed for a more distinctive pickup setup.

The bottom line:
You should start with the 2020 if you want the better value play, especially since pricing has eased and inventory is healthy. If you’re willing to spend more for a slightly newer truck with a more distinctive cargo-bed option, the 2021 is the better secondary path.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.