* Based on opinions and should be considered as general guidance only.
- Reliability (3)While generally considered average, some owners have reported minor issues with the infotainment system or electrical components. Major powertrain issues are not common, but it's not known for bulletproof reliability.
- Maintenance (3)Maintenance costs for the GMC Terrain Denali are typical for its class. Parts are readily available, and most mechanics are familiar with the vehicle. Fuel economy is decent but not class-leading.
- Technology (4)The infotainment system is user-friendly with a responsive touchscreen and standard Apple CarPlay and Android Auto. A good suite of safety features is available, though some advanced driver-aids are optional.
- Comfort (4)The interior of the Terrain Denali is well-appointed with comfortable seats and quality materials. Both front and rear passengers will find ample space, making it suitable for longer journeys. Road noise is generally well-suppressed.
- Dynamics (3)The 2020 GMC Terrain Denali offers a generally smooth ride, but it lacks the sporty handling or precise steering found in some competitors. The engine provides adequate power for most situations, but it can feel a bit strained under hard acceleration.