Used 2020 GMC Sierra 1500 for Sale near New Brunswick

Summary

• With 468 currently listed for sale and an average price of $37,919 CAD, 33.5% 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 1500 models on CarGurus are accident free.

Why it stands out

The 2020 GMC Sierra 1500 stands out as a full-size pickup that leans into a more upscale personality than many rivals. It sits in the fifth generation, which was introduced for the 2019 model year, and GMC’s positioning gives it near-luxury cabin quality without many frills or embellishments. For shoppers, that means the Sierra aims to combine strong capability with a more polished feel, along with good connectivity features and trim levels that range from practical to premium.

For 2020, the Sierra 1500 is described as a reliable choice, and this model year in particular earned lots of satisfied customers. The broader lineup offers a wide spread of powertrains, including a 2.7-litre turbocharged four-cylinder, a 4.3-litre V6, a 5.3-litre V8, a 6.2-litre V8, and a 3.0-litre inline-six Duramax turbodiesel, with rear- and four-wheel drive available and six-, eight-, and 10-speed automatic transmissions depending on engine. The trim range is also broad, from Pro and SLE through Denali, Denali Ultimate, AT4, and AT4X, so buyers can choose between luxury styling, rugged off-road hardware, and added comfort features such as the AT4X’s 16-way power heated and ventilated front seats with a massage feature.

A few standout features help define the Sierra’s appeal. The 2022 refresh brought updated styling, better infotainment functionality, and availability of Super Cruise, while the MultiPro tailgate adds practical versatility with its split-gate design. At the same time, the Sierra can be expensive even used, and the engine and trim lineup can be overwhelming, so it rewards buyers who know exactly which mix of capability, comfort, and equipment they want.

Other model years to consider

• 2025 GMC Sierra 1500

  • Average price: $66,343 CAD
  • Good/great deal percentage: 35.9%
  • User rating: 5 / 5
  • Total listings: 1,519

• 2022 GMC Sierra 1500

  • Average price: $48,187 CAD
  • Good/great deal percentage: 32.3%
  • User rating: 5 / 5
  • Total listings: 833

• 2024 GMC Sierra 1500

  • Average price: $55,849 CAD
  • Good/great deal percentage: 35.9%
  • User rating: 4.64 / 5
  • Total listings: 1,608

This analysis is based on CarGurus' proprietary market data from September 7, 2026, CarGurus experts' opinions, and generative AI.