(Automotive engineering: Vehicle components, Bodywork, controls, and accessories)
A courtesy light is an interior light in a vehicle that goes on when the door is opened.
She was sitting in the car studying a map by the courtesy light.
The white portion of the light serves as a courtesy light when getting in or out of the car. The red portion serves as a marker light to oncomingtraffic that the door is open.
As soon as you open the door, the courtesy light comes on so that you can see your way.
Examples of 'courtesy light' in a sentence
courtesy light
Two weeks ago the interior courtesy light failed because the bulb had blown.