The operation of latch-release controls and door handles shall be considered intuitive where vehicle occupants are able to identify and operate the means of door opening or latch release immediately and without the need for prior instruction or prior experience with the specific system, by having a distinctive shape, colour or marking, not covered or hidden. This requirement is intended to ensure that occupants are able to open a door or release a latch quickly and reliably, regardless of their familiarity with the vehicle.