how to read error codes from my Tesla Model 3 Original (2017-2023)

Tesla Model 3 Highland (2024-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

408 words

Problem Statement

Learn how to read error codes from your Tesla Model 3 (2017-2023). Step-by-step guide for diagnostics and troubleshooting vehicle alerts.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' mode before accessing the onboard diagnostics.

Symptoms

•Check engine light illuminated
•Vehicle performance issues (e.g., reduced power, charging issues)
•Dashboard indicators for specific alerts
•Inability to access certain features or settings

Diagnostic Steps

1
Ensure the vehicle is in 'Park' mode and powered on.
2
Access the Tesla mobile app or use the vehicle's touchscreen interface.
3
Navigate to 'Service' or 'Diagnostics' on the touchscreen.
4
Select the appropriate option to view error codes (may be labeled as 'Vehicle Alerts' or 'Notifications').
5
Review the displayed error codes and associated descriptions.
6
Optionally, use a compatible OBD-II scanner with Tesla support to retrieve additional codes.

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

•Compatible OBD-II scanner (if used)
•Tesla mobile app

Parts Required

•None

Related Faults

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Diagnostic Steps

1
Ensure the vehicle is in 'Park' mode and powered on.
2
Access the Tesla mobile app or use the vehicle's touchscreen interface.
3
Navigate to 'Service' or 'Diagnostics' on the touchscreen.
4
Select the appropriate option to view error codes (may be labeled as 'Vehicle Alerts' or 'Notifications').
5
Review the displayed error codes and associated descriptions.
6
Optionally, use a compatible OBD-II scanner with Tesla support to retrieve additional codes.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface and powered on.
Have your Tesla account information ready if needed for app access.

2. Access Error Codes via Touchscreen

Turn on the vehicle and press the brake pedal.
On the touchscreen, swipe to the "Service" menu.
Select "Diagnostics" or "Vehicle Alerts."

3. Review the Error Codes

Read through the error codes displayed.
Note down any codes and their descriptions for further investigation or repairs.

4. Use the Tesla Mobile App (Optional)

Open the Tesla mobile app on your smartphone.
Navigate to "Service" or "Vehicle Alerts" in the app.
Review any error codes listed and associated notifications.

5. Utilize an OBD-II Scanner (Optional)

Connect the compatible OBD-II scanner to the vehicle's diagnostic port (usually located under the dashboard).
Follow the scanner's instructions to retrieve error codes.
Compare any codes retrieved with the descriptions provided in the scanner manual.