On the Uber driver app map, a grey area typically indicates a zone that is currently at capacity or restricted based on a driver's status. In many cities in 2026, Uber uses an "offline heatmap" where colored zones (red, orange, yellow) represent levels of high demand, while grey zones are often only open to Platinum and Diamond tier couriers or drivers. If you see a grey area, it means that Uber has restricted the number of active drivers allowed to go online in that specific neighborhood to prevent oversupply and ensure those already working can earn a consistent wage. Occasionally, grey can also represent a "dead zone" where there is historically very low demand or no active surge pricing. For riders, grey areas on the map are less common but may appear in certain "Uber Transit" or "Uber Bus" interfaces to denote service boundaries where standard pickups are unavailable. Always check the legend in your specific app version, as Uber frequently updates its UI to manage driver distribution more effectively.