how to reset check engine light on Tesla Model 3 Highland (2024-present)

Tesla Model 3 Highland (2024-present)

Error Codes

30 minutes

Time

medium

Difficulty

medium

Severity

3 min read

453 words

Problem Statement

Learn how to reset the check engine light on Tesla Model 3 Highland (2024-present) with step-by-step instructions and diagnostic tips.

Affected Component

Electrical

Estimated Time

30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe location and not in motion when performing resets or checks.

Symptoms

•Check engine light illuminated on the dashboard
•Possible alerts on the vehicle’s touchscreen display
•No noticeable changes in vehicle performance
•No other warning lights present
•Vehicle may occasionally display a message related to the engine or emissions

Diagnostic Steps

1
Verify if the check engine light is the only warning light illuminated.
2
Access the vehicle’s touchscreen to check for any active alerts or notifications.
3
Use the Tesla app to look for diagnostic information or recent alerts.
4
Perform a software update if any updates are available.
5
Restart the vehicle by putting it in Drive and then back to Park, followed by shutting off the vehicle completely.

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

•Tesla app

Parts Required

•None

Related Faults

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Diagnostic Steps

1
Verify if the check engine light is the only warning light illuminated.
2
Access the vehicle’s touchscreen to check for any active alerts or notifications.
3
Use the Tesla app to look for diagnostic information or recent alerts.
4
Perform a software update if any updates are available.
5
Restart the vehicle by putting it in Drive and then back to Park, followed by shutting off the vehicle completely.

Solution

1. Preparation

Ensure the vehicle is parked safely and turned off.
Have your Tesla account and app ready for access.

2. Soft Reset of the Vehicle

Perform a Soft Reset:
- Press and hold both scroll wheels on the steering wheel until the touchscreen goes black and the Tesla logo appears.
- Release the scroll wheels and wait for the system to reboot.

3. Check for Updates

Access Updates:
- Navigate to 'Software' on the touchscreen.
- Check for any available updates and install them if necessary.
- Confirm that the vehicle is connected to Wi-Fi for updates.

4. Clear Fault Codes

Using the Tesla App:
- Open the Tesla app and go to the vehicle’s 'Service' section.
- Select 'Clear Alerts' to reset any non-critical alerts related to the check engine light.

5. Final Check

Reboot System:
- After clearing alerts, perform another soft reset using the scroll wheel method.
- Check if the check engine light remains off after reboot.