What Causes the Interior Light to Stay On?

[MilesLee]

Interior lights generally have three modes: always on, always off, and on when the door is open. If the interior light stays on, it may be set to the always-on mode. More details about interior lights are as follows: 1. Function: Interior lights are installed in various parts of the vehicle to facilitate safe entry and exit at night and to read maps while driving. 2. Overview: The light switch (SW) should be accessible from both front and rear seats, typically with three positions: ON, OFF, and linked to the door. To minimize the thickness of the light, 5~10W bulb lights are commonly used. For broader interior lighting needs, bulbs with a power of 8~30W are generally employed.