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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes

Time

easy

Difficulty

medium

Severity

3 min read

406 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 tips for prevention.

Affected Component

Electrical

Estimated Time

30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is stationary and in a safe location before attempting to reset any alerts.

Symptoms

•Check engine light illuminated on the dashboard
•Possible decrease in vehicle performance
•No other obvious symptoms

Diagnostic Steps

1
Use the Tesla mobile app or onboard display to check for any active alerts or notifications.
2
Connect a compatible OBD-II scanner to the diagnostic port to read any stored fault codes.
3
Review the fault codes to determine if any require attention before resetting the light.
4
Ensure that any underlying issues are resolved before proceeding with the reset.

Solution

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

•Tesla mobile app
•OBD-II scanner

Parts Required

•None (unless underlying issues require repair)

Related Faults

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Diagnostic Steps

1
Use the Tesla mobile app or onboard display to check for any active alerts or notifications.
2
Connect a compatible OBD-II scanner to the diagnostic port to read any stored fault codes.
3
Review the fault codes to determine if any require attention before resetting the light.
4
Ensure that any underlying issues are resolved before proceeding with the reset.

Solution

1. Preparation

Ensure the vehicle is parked safely and turned off.
Have the Tesla mobile app or OBD-II scanner ready for use.

2. Accessing the Settings

Turn on the vehicle without starting the engine.
Open the Tesla mobile app or use the vehicle's touchscreen.
Go to the "Service" menu.

3. Resetting the Check Engine Light

If using the mobile app, select "Vehicle" and then "Service."
Choose "Reset" or "Clear alerts" (if available).
If using the OBD-II scanner:
- Connect it to the diagnostic port under the dashboard.
- Navigate to the “Erase Codes” option after reading the fault codes.
- Confirm the action to reset the check engine light.

4. Confirm the Reset

Turn off the vehicle completely.
Wait for a few moments, then turn the vehicle back on.
Verify that the check engine light is no longer illuminated.