The reading lamp, the interior lighting in the grab handle and the dome lamp on the respective side of the vehicle will light up.
After pressing it once, the interior lighting in the grab handle and the dome lamp on the respective side of the vehicle will go out.
After pressing it twice, the reading lamp on the respective side of the vehicle will go out.
The reading lamps, the interior lighting in the grab handle and the dome lamps on both sides of the vehicle will light up or go out.