2020 GMC Terrain — should you buy one?

Why people love the 2020 GMC Terrain

The 2020 Terrain's 1.6-liter turbo four-cylinder with nine-speed automatic delivers 170 horsepower and feels zippy around town without guzzling fuel at the pump. Owners specifically praise the roomy cargo area (30.3 cubic feet behind the rear seat) and the easy-to-reach touchscreen infotainment that doesn't require a PhD to navigate, unlike some competitors. The SLT and Denali trims add real leather and power liftgate convenience that make daily parking-lot errands feel less like a chore.

Common complaints and known issues

Transmission hesitation and soft-shift complaints emerged around 40k–70k miles on many 2020 models, with owners reporting a two-to-three second delay when shifting from Park to Drive in cold weather. Paint peeling on the hood and roof panels shows up after 18–24 months of sun exposure in hot climates, usually without damage underneath. Some infotainment systems go unresponsive at the 50k-mile mark, requiring a hard reset or dealer visit; NHTSA has fielded multiple complaints about navigation crashing.

Typical asking price

Under 80k miles: $18,500–$22,000. 80k–120k miles: $15,500–$19,000. Over 120k miles: $13,000–$16,500. AWD models and Denali trims command $2,000–$3,500 premiums over base FWD SL trims. Regional variance is modest; accident-history clears are worth $1,000–$2,000 more than any-accident vehicles in the same mileage bracket.

Ranges are typical 2026 asking prices, not appraisals. The actual fair offer depends on this specific car's title history, accident record, and open recalls — which is what EstimateProof tells you.