how to reset check engine light on Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes

Time

medium

Difficulty

medium

Severity

3 min read

429 words

Problem Statement

Learn how to reset the check engine light on Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and reset instructions.

Affected Component

Electrical

Estimated Time

30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe location before performing any diagnostic or reset procedures.

Symptoms

•Check engine light illuminated on the dashboard
•Potential associated error messages displayed on the touchscreen
•Vehicle operates normally despite the CEL being on
•No noticeable change in vehicle performance

Diagnostic Steps

1
Connect a compatible OBD-II scanner to the vehicle's diagnostic port.
2
Read the error codes using the scanner to identify the underlying issue.
3
Address any underlying problems if codes are present before resetting the light.
4
Verify that the vehicle is in the 'Park' position.
5
Navigate to the touchscreen interface to access settings.

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

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Diagnostic Steps

1
Connect a compatible OBD-II scanner to the vehicle's diagnostic port.
2
Read the error codes using the scanner to identify the underlying issue.
3
Address any underlying problems if codes are present before resetting the light.
4
Verify that the vehicle is in the 'Park' position.
5
Navigate to the touchscreen interface to access settings.

Solution

1. Preparation

Ensure the vehicle is parked safely and the ignition is in the "On" position.
Gather necessary tools: Compatible OBD-II scanner.

2. Use OBD-II Scanner

Plug in the OBD-II scanner into the vehicle's diagnostic port, typically located under the dashboard.
Turn on the scanner and select the option to read diagnostic trouble codes (DTCs).
Write down or note any error codes that appear for future reference.

3. Clear Error Codes

On the scanner, select the option to clear or reset the error codes.
Confirm the action when prompted by the scanner.
Wait for the scanner to indicate that the codes have been successfully cleared.

4. Verify Reset

Disconnect the OBD-II scanner from the vehicle.
Start the vehicle and check the dashboard for the check engine light status.
If the light remains off and no error codes reappear during a subsequent scan, the reset is confirmed successful.

5. Check for Recurrence

Drive the vehicle for a short distance to monitor if the check engine light re-illuminates.
If the light comes back on, further diagnostics may be necessary to address underlying issues.