why does my Tesla Model 3 Highland (2024-present) interior light stay on when the doors are closed

Solution

1. Preparation

• Gather necessary tools: OBD-II scanner (if applicable), multimeter, and cleaning supplies.
• Ensure the vehicle is parked safely and turned off.
• Disconnect the 12V battery to prevent any electrical shorts during inspection.

2. Inspect Door Switches

• Remove the door panel carefully using a trim removal tool.
• Locate the door switch connector and inspect for any corrosion, dirt, or damage.
• Clean the switch and connector as necessary. If damaged, replace the door switch.

3. Check Interior Light Control Settings

• Reconnect the battery and power on the vehicle.
• Access the settings menu on the touchscreen and navigate to interior lighting options.
• Ensure the settings are configured correctly to allow lights to turn off when doors are closed.

4. Reset the Vehicle System

• Perform a soft reset by holding down the two scroll wheels on the steering wheel until the screen resets.
• Wait for the system to restart and check if the lights turn off correctly after closing the doors.

5. Inspect Wiring and Connectors

• If the problem persists, inspect the wiring harness leading to the door switches for wear or damage.
• Use a multimeter to check for continuity in the wiring and ensure proper voltage at the switches.