Summary

• With 503 currently listed for sale and an average price of $37,660.00 CAD, 33.2% 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 stands out in the competitive field of full-size pickup trucks with a blend of luxury and utility. It has received high praise from owners for its spacious interior, advanced technology, and overall strong performance. Many enthusiasts appreciate its smooth ride while ensuring great value through its various configurations. While many drivers have reported engine performance issues, particularly with oil burning, the Sierra is still lauded for its upscale design and impressive capability, particularly when it comes to towing and hauling. This model belongs to the fifth generation of the Sierra, which has seen significant improvements over the years, making it appealing to a wider audience. With 100.0% of 2020 models listed on CarGurus being accident-free, buyers can feel secure in their purchase.

Other model years to consider

• 2025 GMC Sierra 1500

  • Average price: $67,751.00 CAD
  • Good/great deal percentage: 33.8%
  • User rating: 5 / 5
  • Total listings: 1,332

• 2022 GMC Sierra 1500

  • Average price: $49,702.00 CAD
  • Good/great deal percentage: 32.2%
  • User rating: 5 / 5
  • Total listings: 791

• 2024 GMC Sierra 1500

  • Average price: $57,513.00 CAD
  • Good/great deal percentage: 35.0%
  • User rating: 4.6 / 5
  • Total listings: 1,487

This analysis is based on CarGurus' proprietary market data from June 8, 2026, CarGurus experts' opinions, and generative AI.