Summary

• With 1,850 currently listed for sale and an average price of $14,622.00, 35.1% of 2018 GMC Terrains for sale on CarGurus are rated as good or great deals.

• Favorably reviewed: Owners rated the 2018 GMC Terrain 4.71 / 5 stars.

• 63.6% of 2018 Terrain models on CarGurus are accident-free.

• The 2018 GMC Terrain features a redesigned exterior, improved interior quality, and multiple engine options, including a powerful turbocharged 2.0-liter engine.

Why it stands out

The 2018 GMC Terrain makes a notable entrance in the compact SUV market with its refreshed styling and improved interior quality, though it may not stand out as much as its predecessors. While the redesign offers a more modern look at the expense of its boxy heritage, the Terrain now incorporates a host of trims and engine choices, enhancing its appeal. Owners appreciate the comfortable ride, especially with the available 2.0L turbo engine, which provides a boost in power and overall driving satisfaction. However, some users have reported issues including brake sensitivity and the lack of power in certain driving situations. Additionally, despite its advancements, critiques mention that the Terrain struggles to compete value-wise against rivals such as the Honda CR-V, particularly in terms of cargo space and safety ratings.

Other model years to consider

• 2023 GMC Terrain

  • Average price: $24,565.00
  • Good/great deal percentage: 29.3%
  • User rating: 5 / 5
  • Total listings: 4,861

• 2022 GMC Terrain

  • Average price: $22,798.00
  • Good/great deal percentage: 30.8%
  • User rating: 4.83 / 5
  • Total listings: 3,111

• 2024 GMC Terrain

  • Average price: $24,507.00
  • Good/great deal percentage: 29.0%
  • User rating: 5 / 5
  • Total listings: 4,078

This analysis is based on CarGurus' proprietary market data from April 13, 2026, CarGurus experts' opinions, and generative AI.