Used 2020 GMC Sierra 1500 for Sale near Modesto, CA
320 results
CarGurus Analysis:
2020 GMC Sierra 1500
With 6,084 currently listed for sale and an average price of $34,257.00, 31.1% of 2020 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 1500 4.28 / 5 stars.
75.6% of 2020 Sierra models on CarGurus are accident free.
The 2020 GMC Sierra 1500 features multiple powertrain options, including a 6.2-liter V8 engine that produces 420 horsepower, alongside modern amenities like a carbon-fiber bed and the innovative MultiPro tailgate.
CarGurus Analysis: 2020 GMC Sierra 1500
overall
Summary
With 6,084 currently listed for sale and an average price of $34,257.00, 31.1% of 2020 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 1500 4.28 / 5 stars.
75.6% of 2020 Sierra models on CarGurus are accident free.
The 2020 GMC Sierra 1500 features multiple powertrain options, including a 6.2-liter V8 engine that produces 420 horsepower, alongside modern amenities like a carbon-fiber bed and the innovative MultiPro tailgate.
Why it stands out
The 2020 GMC Sierra 1500 excels in a competitive truck market by combining functionality with comfort and technology. This model showcases several powertrain choices, catering to both economy-conscious buyers and those seeking high performance from a V8 engine. Owners appreciate the innovative MultiPro tailgate, which enhances usability for hauling and loading. Notably, this truck emphasizes a comfortable ride with a plush interior that rivals many SUVs, making it suitable for both work and family use. User feedback often highlights the smooth ride and advanced tech features, though some concerns have been noted regarding engine performance and the design of interior features. The expert review praises the Sierra's evolution with modern pickup styling and added functionality, marking it as a reliable choice for buyers wanting versatility and capability.
Other model years to consider
- Average price: $43,750.00
- Good/great deal percentage: 32.3%
- User rating: 5 / 5
- Total listings: 8,702
- Average price: $51,023.00
- Good/great deal percentage: 32.6%
- User rating: 4.6 / 5
- Total listings: 9,588
- Average price: $53,106.00
- Good/great deal percentage: 32.6%
- User rating: 5 / 5
- Total listings: 8,702
This analysis is based on CarGurus' proprietary market data from May 4, 2026, CarGurus experts' opinions, and generative AI.
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4.3 Overall rating
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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 |
|---|---|
| Elevation Crew Cab RWD | $42,900 |
| Elevation Double Cab 4WD | $43,800 |
| SLE Crew Cab 4WD | $43,700 |
| SLT Crew Cab RWD | $46,900 |
| Elevation Crew Cab 4WD | $46,200 |
| Denali Crew Cab 4WD | $58,600 |
| AT4 Crew Cab 4WD | $53,700 |
| SLT Crew Cab 4WD | $50,400 |
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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