how to reset the check engine light on my 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

472 words

Problem Statement

Learn how to reset the check engine light on your Tesla Model S (2012-2020) 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 powered off before working on the electrical systems.
•Take necessary precautions when handling the 12V battery to avoid short circuits.

Symptoms

•Check engine light illuminated
•Vehicle displays error messages on dashboard
•Reduced performance or range
•No other apparent performance issues
•Vehicle may enter reduced power mode

Diagnostic Steps

1
Confirm that there are no active warnings or alerts on the vehicle's display.
2
Use the Tesla mobile app or onboard diagnostics to check for any error codes.
3
Inspect the vehicle for any obvious issues (e.g., loose connections, damaged components).
4
Ensure that the vehicle is updated with the latest software version.
5
Disconnect and reconnect the 12V battery to perform a soft reset of the vehicle systems.

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 mobile app
•OBD-II scanner
•Tire iron
•Safety equipment

Parts Required

•None (unless a faulty component needs replacement)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Confirm that there are no active warnings or alerts on the vehicle's display.
2
Use the Tesla mobile app or onboard diagnostics to check for any error codes.
3
Inspect the vehicle for any obvious issues (e.g., loose connections, damaged components).
4
Ensure that the vehicle is updated with the latest software version.
5
Disconnect and reconnect the 12V battery to perform a soft reset of the vehicle systems.

Solution

1. Preparation

Ensure the vehicle is in a safe, stationary position.
Have the Tesla mobile app or a compatible OBD-II scanner ready.
Gather necessary tools: tire iron (if battery disconnection is needed) and any required safety equipment.

2. Check for Error Codes

Open the Tesla mobile app.
Navigate to the 'Service' section to view any active issues.
Note any error codes and their descriptions for reference.

3. Perform a Soft Reset

Sit in the driver's seat and ensure the vehicle is in 'Park'.
Press and hold both scroll wheels on the steering wheel until the Tesla logo appears on the screen.
Release the scroll wheels and allow the system to reboot.

4. Disconnect the 12V Battery (if necessary)

Locate the 12V battery (usually in the front trunk).
Using a tire iron, remove the negative terminal cable from the battery.
Wait for at least 10 minutes to allow systems to reset.
Reconnect the negative terminal securely.

5. Recheck for Error Codes

After the reset, check the Tesla mobile app or onboard diagnostics again to see if the check engine light has reset.
If the light remains on, further diagnostics may be necessary.