why does my Tesla Model S Plaid/Refresh (2021-present) interior light stay on when driving

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

501 words

Problem Statement

Learn how to diagnose and fix the issue of interior lights staying on in Tesla Model S Plaid/Refresh. 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' before performing any inspections or resets.

Symptoms

•Interior lights remain on while the vehicle is in motion
•Dashboard warning lights may appear
•Possible flickering of interior lights
•Increased battery drain
•Possible malfunctioning of other electronic systems

Diagnostic Steps

1
Check the vehicle's settings via the touchscreen to confirm if the interior light setting is configured to stay on while driving.
2
Use the Tesla mobile app or dashboard to check for any software updates that may address the issue.
3
Inspect the door switches for any stuck or malfunctioning components that may cause the vehicle to think a door is open.
4
Perform a hard reset of the vehicle by holding down the two scroll wheels on the steering wheel until the screen reboots.
5
Scan for any error codes using a diagnostic tool connected to the vehicle's OBD-II port.

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

•OBD-II scanner
•Soft cloth for cleaning switches

Parts Required

•Replacement door switch (if necessary)

Related Faults

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Diagnostic Steps

1
Check the vehicle's settings via the touchscreen to confirm if the interior light setting is configured to stay on while driving.
2
Use the Tesla mobile app or dashboard to check for any software updates that may address the issue.
3
Inspect the door switches for any stuck or malfunctioning components that may cause the vehicle to think a door is open.
4
Perform a hard reset of the vehicle by holding down the two scroll wheels on the steering wheel until the screen reboots.
5
Scan for any error codes using a diagnostic tool connected to the vehicle's OBD-II port.

Solution

1. Vehicle Settings Adjustment

Access the touchscreen interface.
Navigate to 'Controls' > 'Lights'.
Ensure that the interior light settings are set to 'Automatic' or 'Off' while driving.

2. Software Update

Connect to Wi-Fi and check for any available software updates.
If an update is available, allow the vehicle to install it, following on-screen instructions.

3. Door Switch Inspection

Open each door and inspect the door switches located on the door frame.
Ensure that the switches are not stuck or damaged; clean or replace as necessary.
Test the functionality by manually pressing the switch and observing the interior lights.

4. Hard Reset

While the vehicle is in 'Park', press and hold both scroll wheels on the steering wheel.
Hold until the touchscreen goes black and then reboots.
Wait for the system to restart and check if the issue persists.

5. Diagnostic Scan

Connect an OBD-II scanner to the vehicle's port.
Check for any relevant error codes related to the lighting system or door sensors.
Address any codes found according to the manufacturer's repair guidelines.