my Tesla Model S Original (2012-2020) interior lights won't turn off

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

484 words

Problem Statement

Learn how to diagnose and fix the issue of interior lights staying on in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in park and powered off before starting any work.

Symptoms

•Interior lights remain on even after the vehicle is turned off
•Battery drain observed over time
•Possible warning message on the touchscreen regarding battery usage
•Increased cabin temperature due to lights being on
•Difficulty locking the vehicle due to lights being active

Diagnostic Steps

1
Check the vehicle settings for interior light control options on the touchscreen.
2
Inspect the door switches for proper operation, ensuring they are not stuck or malfunctioning.
3
Scan the vehicle for any error codes using the Tesla diagnostic tool.
4
Verify the status of the vehicle's software to ensure it is up-to-date.
5
Examine the wiring and connectors associated with the interior lights for any signs of damage or corrosion.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Tesla diagnostic tool
•Multimeter
•Flashlight

Parts Required

•Door switch (if needed)
•Wiring harness (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the vehicle settings for interior light control options on the touchscreen.
2
Inspect the door switches for proper operation, ensuring they are not stuck or malfunctioning.
3
Scan the vehicle for any error codes using the Tesla diagnostic tool.
4
Verify the status of the vehicle's software to ensure it is up-to-date.
5
Examine the wiring and connectors associated with the interior lights for any signs of damage or corrosion.

Solution

1. Preparation

Tools Required: Tesla diagnostic tool, multimeter, flashlight
Safety Warnings: Ensure the vehicle is in park and powered off before starting any work.

2. Inspect and Test Door Switches

Remove the door panel to access the door switch.
Disconnect the electrical connector from the door switch.
Use a multimeter to test the switch for continuity (it should show continuity when pressed).
If faulty, replace the door switch with a new one.

3. Check Interior Light Settings

Power on the vehicle and navigate to the "Controls" menu on the touchscreen.
Select "Lights" and check the settings for "Interior Lights."
Ensure that the "Stay On" feature is disabled and adjust as necessary.

4. Software Update

Connect the vehicle to a Wi-Fi network.
Check for any available software updates under the "Software" tab on the touchscreen.
If updates are available, follow the prompts to install them and restart the vehicle.

5. Inspect Wiring and Connectors

Carefully check the wiring harness leading to the interior lights for any signs of wear or damage.
Ensure all connectors are securely fastened and free from corrosion.
If any wiring is damaged, repair or replace it as needed.