how to reset the check engine light in my Tesla Model 3 Original (2017-2023)

Tesla Model 3 Highland (2024-present)

Error Codes

15-30 minutes

Time

easy

Difficulty

medium

Severity

3 min read

501 words

Problem Statement

Learn how to reset the check engine light on your Tesla Model 3 (2017-2023). Step-by-step guide with diagnostic procedures and solutions.

Affected Component

Electrical

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure the vehicle is in 'Park' mode before performing system resets

Symptoms

•Check engine light illuminated on the dashboard
•Potentially reduced vehicle performance
•No noticeable physical symptoms if the fault is minor
•Warning message displayed on the touchscreen

Diagnostic Steps

1
Check for fault codes using the Tesla mobile app or vehicle touchscreen
2
Inspect notifications on the touchscreen for specific guidance or errors
3
Perform a system reboot by holding down the scroll wheels on the steering wheel
4
Verify that all vehicle systems and components are functioning properly
5
Clear fault codes using the Tesla app or vehicle touchscreen

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
•Vehicle touchscreen

Parts Required

•None (unless repairs are identified during diagnostic steps)

Related Faults

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Diagnostic Steps

1
Check for fault codes using the Tesla mobile app or vehicle touchscreen
2
Inspect notifications on the touchscreen for specific guidance or errors
3
Perform a system reboot by holding down the scroll wheels on the steering wheel
4
Verify that all vehicle systems and components are functioning properly
5
Clear fault codes using the Tesla app or vehicle touchscreen

Solution

1. Preparation

Ensure the vehicle is parked in a safe location and is in "Park" mode.
Ensure that the Tesla mobile app is installed and connected to the vehicle for remote diagnostics.

2. Reboot the Vehicle System

Sub-step 1: Sit in the driver's seat with the vehicle in "Park".
Sub-step 2: Press and hold the two scroll wheels on the steering wheel simultaneously.
Sub-step 3: Hold the scroll wheels until the touchscreen turns off and the Tesla logo appears. This may take about 10 seconds.
Sub-step 4: Release the scroll wheels once the logo appears. Wait for the system to boot back up.

3. Clear the Check Engine Light

Sub-step 1: Open the Tesla mobile app or the car’s touchscreen.
Sub-step 2: Navigate to ‘Service’ or ‘Diagnostics’ section.
Sub-step 3: If fault codes are present, address any issues as necessary (refer to the diagnostic steps).
Sub-step 4: If no significant issues are found, select the option to clear the check engine light or reset notifications.