What condition is usually a sign for detailing a vehicle?

The presence of excessive dirt, pet hair, and odors is typically a strong indication that detailing a vehicle is necessary. Detailing is a comprehensive cleaning and restoration process that goes beyond a standard wash. It focuses on deep cleaning the interior and exterior of the vehicle, addressing issues like deep-set stains from spills, ground-in dirt, pet hair that can be difficult to remove, and unpleasant odors that can accumulate over time. These conditions suggest that the vehicle requires thorough cleaning and potentially a more intensive treatment to restore its appearance and freshness.

In contrast, the other options indicate less severe conditions. Faded paint color may suggest the need for polishing or protective coatings rather than a full detail. A few scratches might warrant a touch-up or minor cosmetic attention but doesn't necessarily require detailing. A layer of dust on the dashboard indicates light cleaning might suffice, but it does not imply the deeper cleaning and restoration services that detailing entails.