how to fix the auto high beams not working in Tesla Model S Plaid/Refresh (2021-present)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

507 words

Problem Statement

Learn how to diagnose and fix the auto high beams not working in Tesla Model S Plaid. 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 parked and powered off before cleaning sensors or performing any maintenance.

Symptoms

•Automatic high beams do not activate in low-light conditions
•High beam indicator remains off regardless of conditions
•Manual high beam activation works but fails to switch back automatically
•Alerts or notifications regarding lighting system on the dashboard
•Inconsistent behavior in high beam activation

Diagnostic Steps

1
Check the vehicle's software version to ensure it is up-to-date.
2
Verify the settings in the vehicle's touchscreen under 'Lights' to confirm that auto high beams are enabled.
3
Inspect the front-facing cameras and sensors for dirt or obstructions.
4
Perform a vehicle restart to reset electronic systems.
5
Use the Tesla diagnostics tool to check for any error codes related to the lighting system.

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

•Microfiber cloth
•Tesla diagnostics tool

Parts Required

•None typically required, but replacement sensors may be needed if malfunctioning.

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Symptoms

•Automatic high beams do not activate in low-light conditions

•High beam indicator remains off regardless of conditions

•Manual high beam activation works but fails to switch back automatically

•Alerts or notifications regarding lighting system on the dashboard

•Inconsistent behavior in high beam activation

Diagnostic Steps

1
Check the vehicle's software version to ensure it is up-to-date.
2
Verify the settings in the vehicle's touchscreen under 'Lights' to confirm that auto high beams are enabled.
3
Inspect the front-facing cameras and sensors for dirt or obstructions.
4
Perform a vehicle restart to reset electronic systems.
5
Use the Tesla diagnostics tool to check for any error codes related to the lighting system.

Solution

1. Software Update

Navigate to the "Software" tab on the touchscreen.
Check for available updates and follow prompts to install if any are found.
Restart the vehicle after the update completes.

2. Enable Auto High Beams

Access the "Controls" menu on the touchscreen.
Select "Lights" and ensure that the "Auto High Beams" option is enabled.
Adjust settings as necessary and exit the menu.

3. Clean Sensors

Locate the front-facing camera and sensor area, typically near the rearview mirror or front grille.
Use a microfiber cloth and appropriate cleaning solution to carefully clean the sensors and camera lenses.
Ensure no obstructions are present that could affect sensor performance.

4. Vehicle Restart

Put the vehicle in park and ensure all doors are closed.
Press and hold the brake pedal while pressing and holding the "Park" button on the gear selector.
Wait for the vehicle to power off completely, then release the brake and press the "Drive" button to restart.

5. Diagnostic Check

Connect the Tesla diagnostics tool to the vehicle's diagnostic port.
Follow the prompts to run a diagnostic check on the lighting system.
If any error codes appear, follow recommended procedures to address them.