Used 2020 GMC Sierra 1500 for Sale near Ontario
90 results
CarGurus Analysis:
2020 GMC Sierra 1500
With 487 currently listed for sale and an average price of $38,435.00 CAD, 32.4% of 2020 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2020 GMC Sierra 1500 4.28 / 5 stars.
100.0% of 2020 Sierra models on CarGurus are accident-free.
CarGurus Analysis: 2020 GMC Sierra 1500

Summary
With 487 currently listed for sale and an average price of $38,435.00 CAD, 32.4% of 2020 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2020 GMC Sierra 1500 4.28 / 5 stars.
100.0% of 2020 Sierra models on CarGurus are accident-free.
Why it stands out
The 2020 GMC Sierra 1500 distinguishes itself in the competitive full-size pickup market with its spacious interior, advanced technology, and strong performance. Owners frequently praise the smooth ride and value for money, even as some have expressed concerns about engine performance, specifically regarding oil burning and recalls. This model benefits from being part of the fifth generation introduced in 2019, featuring upscale design and excellent trailering capabilities. Notable enhancements include a range of powerful engine options and excellent connectivity features. While the interior design has received a mix of feedback, many appreciate the variety of trim options that cater to both luxury and ruggedness, making the Sierra 1500 an appealing choice for a wide range of buyers.
Other model years to consider
- Average price: $68,066.00 CAD
- Good/great deal percentage: 32.2%
- User rating: 5 / 5
- Total listings: 1,334
- Average price: $49,421.00 CAD
- Good/great deal percentage: 31.2%
- User rating: 5 / 5
- Total listings: 786
- Average price: $57,580.00 CAD
- Good/great deal percentage: 33.2%
- User rating: 4.6 / 5
- Total listings: 1,478
This analysis is based on CarGurus' proprietary market data from June 1, 2026, CarGurus experts' opinions, and generative AI.
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4.3 Overall rating
Filter by rating
Jeremy S
Reviewed a 2020 GMC Denali Crew Cab 4WD on Nov 23, 2024
Great truck, great value, awesome vehicle accessories package. Highly recommend this truck.
Heriberto M
Reviewed a 2020 GMC Sierra 1500 on Jun 24, 2024
It’s a reliable truck great engine and just a great choice for pickup truck
Rodney C
Reviewed a 2020 GMC Sierra 1500 on Jun 30, 2025
Body dented and scratches, former work truck , transmission shutter , definitely abused, four wheel clunks when engaged , not a good value
Deborah E
Reviewed a 2020 GMC Sierra 1500 on Aug 7, 2022
Absolutely stunning vehicle. Pure luxury pick-up truck. Serious power, w/a 6.2L V8 engine; smooth, wonderful ride, lots of driver convenience & safety features; comfortable seating, roomy cab interior....I could go on. GMC has left nothing out of their Sierra Denali line. Beautiful truck - everyone Ive talked to feels the same. Commanding presence on the road. Tops Dodge Ram & Ford models, in my opinion. I have a 2020 model. The 2023 model tops even THAT!!!
2020 GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| SLE Double Cab 4WD | $41,300 |
| Double Cab 4WD | $36,800 |
| SLT Crew Cab 4WD | $50,400 |
| SLE Crew Cab 4WD | $43,700 |
| Crew Cab 4WD | $39,200 |
| AT4 Crew Cab 4WD | $53,700 |
| Denali Crew Cab 4WD | $58,600 |
| Elevation Crew Cab 4WD | $46,200 |
2020 GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 GMC Sierra 1500 prices has changed over time.
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