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my Tesla Model S Original (2012-2020) interior lights stay on, what to do - Tesla Model S
Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/my Tesla Model S Original (2012-2020) interior lights stay on, what to do

my Tesla Model S Original (2012-2020) interior lights stay on, what to do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
519 words

Problem Statement

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

Affected Component
Electrical
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the negative battery terminal before working on electrical components to prevent short circuits.

Symptoms

  • •Interior lights do not turn off after exiting the vehicle
  • •Dome lights remain illuminated while driving
  • •Battery drain due to lights staying on
  • •Possible warning messages on the dashboard related to lighting
  • •Malfunctioning door sensors or switches

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

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
  • •Multimeter
  • •Trim removal tool
  • •Socket set

Parts Required

  • •Door switch (if faulty)
  • •Interior light control module (if faulty)

Additional Information

Affected Component
Electrical
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
4 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is in park and the key fob is removed from the vehicle.
  • Disconnect the negative battery terminal to avoid electrical short circuits.
2. Inspect Door Switches
  • Sub-steps:
    • Remove the door panel using a trim removal tool and socket set.
    • Locate the door switch and visually inspect for damage or misalignment.
    • Test the door switch with a multimeter to ensure it is functioning correctly.
    • If defective, replace the door switch with a new one.
3. Check Interior Light Control Module
  • Sub-steps:
    • Locate the interior light control module (consult service manual for exact location).
    • Disconnect the module's wiring harness and inspect for corrosion or loose connections.
    • Reconnect the harness securely and test for functionality.
    • If faulty, replace the interior light control module and reconnect wiring.
4. Adjust Vehicle Settings
  • Sub-steps:
    • Reconnect the negative battery terminal.
    • Turn on the vehicle and access the touchscreen interface.
    • Navigate to the “Settings” menu and select “Lights.”
    • Ensure the interior light settings are configured correctly (e.g., “Auto Off” is enabled).
5. Final Assembly
  • Sub-steps:
    • Reinstall any door panels or components that were removed during inspection.
    • Ensure all screws and clips are secured.
    • Test the interior lights for proper operation before closing the vehicle.