Windshield wiper rainlamp feature

When the windshield wipers are turned on during daylight, and the headlamp control is in the autolamp position, the exterior lamps will turn on after a brief delay and will remain on until the wipers are turned off.
See also:
Windows and wiper blades
The windshield, rear and side windows and the wiper blades should be
cleaned regularly. If the wipers do not wipe properly, substances on the
vehicle’s glass or the wiper blades may be the cause. ...
Front row map lamps (if equipped)
To turn on the map lamps, press the
outer edge of the clear lens. The
front row map lamp lights when:
• any door is opened.
• the dome lamp button on the
instrument panel is activated.
...
