Summary

• With 497 currently listed for sale and an average price of $37,358.00 CAD, 32.6% 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.

• The 2020 GMC Sierra 1500 showcases an upscale design and strong performance, complemented by advanced technology and a spacious interior.

Why it stands out

The 2020 GMC Sierra 1500 distinguishes itself in the competitive full-size truck market with its impressive blend of luxury and performance. As part of the fifth generation that began in 2019, it offers a refreshed interior with high-quality materials and a range of advanced tech features. Buyers can expect robust engine options and excellent capabilities for towing and hauling, making it suitable for both work and leisure. Although some owners have reported issues with engine performance, particularly concerning oil burning and recalls, many still appreciate the smooth ride and overall value. The 2020 model stands out for its versatility and is regarded highly among its owners, pointing to a generally satisfying ownership experience.

Other model years to consider

• 2025 GMC Sierra 1500

  • Average price: $67,398.00 CAD
  • Good/great deal percentage: 35.5%
  • User rating: 5 / 5
  • Total listings: 1,342

• 2022 GMC Sierra 1500

  • Average price: $49,688.00 CAD
  • Good/great deal percentage: 31.5%
  • User rating: 5 / 5
  • Total listings: 765

• 2024 GMC Sierra 1500

  • Average price: $57,197.00 CAD
  • Good/great deal percentage: 36.1%
  • User rating: 4.6 / 5
  • Total listings: 1,455

This analysis is based on CarGurus' proprietary market data from June 15, 2026, CarGurus experts' opinions, and generative AI.