* Based on opinions and should be considered as general guidance only.
- Reliability (3)GMC generally has average reliability. While the powertrain is robust, some owners report minor electrical glitches or fit-and-finish issues.
- Maintenance (3)Maintenance costs are typical for a large, luxury SUV. Parts can be expensive, and fuel economy is not a strong suit, leading to higher running costs.
- Technology (4)Packed with modern tech, including a large infotainment screen, head-up display, and numerous driver-assistance features. Some interfaces could be more intuitive.
- Comfort (5)Exceptional comfort for all passengers, with spacious seating across all three rows and a very quiet cabin, making long trips enjoyable.
- Dynamics (4)The 2021 GMC Yukon XL Denali offers surprisingly composed handling for its size, especially with the adaptive air suspension, but it's still a large SUV.