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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

490 words

Problem Statement

Learn how to diagnose and fix the issue of interior lights staying on in Tesla Model S Plaid. Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is powered down before performing repairs
•Be cautious of sharp edges when removing door panels

Symptoms

•Interior lights remain on after the vehicle is turned off
•Door ajar warning displayed on the dashboard
•Interior lights flicker intermittently
•Increased battery drain when the vehicle is not in use
•Difficulty with the vehicle entering sleep mode

Diagnostic Steps

1
Inspect all doors and the trunk to ensure they are securely closed
2
Check the interior light settings in the vehicle’s display to confirm they are set to 'Auto'
3
Use the Tesla mobile app to check for software updates and install if any are available
4
Perform a soft reset of the vehicle by holding down the steering wheel buttons until the screen reboots
5
Verify the operation of door sensors by opening and closing each door while observing the interior lights
6
Scan for any error codes related to the lighting system using the Tesla diagnostics tool

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

•Trim removal tool
•Electrical contact cleaner
•Screwdriver set

Parts Required

•Door sensor (if replacement is necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect all doors and the trunk to ensure they are securely closed
2
Check the interior light settings in the vehicle’s display to confirm they are set to 'Auto'
3
Use the Tesla mobile app to check for software updates and install if any are available
4
Perform a soft reset of the vehicle by holding down the steering wheel buttons until the screen reboots
5
Verify the operation of door sensors by opening and closing each door while observing the interior lights
6
Scan for any error codes related to the lighting system using the Tesla diagnostics tool

Solution

1. Preparation

Disconnect the vehicle from any power source.
Ensure the vehicle is in a well-ventilated area and that all tools are ready.

2. Inspect Door Sensors

Sub-steps:
1. Remove the door panel of each door (using a trim removal tool).
2. Locate the door latch assembly and check the position of the door sensor.
3. Clean the sensor and its connector with electrical contact cleaner.
4. Reassemble the door panel and test the door operation.

3. Replace Faulty Door Sensor

Sub-steps:
1. Identify the faulty door sensor based on the diagnostic results.
2. Remove the door panel (if not already done).
3. Disconnect the old sensor from the wiring harness.
4. Install the new sensor and connect it to the wiring harness.
5. Reassemble the door panel.

4. Update Vehicle Software

Sub-steps:
1. Connect the vehicle to a stable Wi-Fi network.
2. Navigate to the software update section in the display menu.
3. Download and install any available updates.
4. Restart the vehicle after the update completes.

Tools Required:

Trim removal tool
Electrical contact cleaner
Screwdriver set

Parts Required:

Door sensor (if replacement is necessary)

Estimated Repair Time: 1-2 hours

Safety Warnings:

Ensure the vehicle is powered down before performing repairs.
Be cautious of sharp edges when removing door panels.