how to troubleshoot Tesla Model 3 Original (2017-2023) that won't connect to Wi-Fi

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

532 words

Problem Statement

Learn how to troubleshoot Wi-Fi connection issues in Tesla Model 3 (2017-2023). Step-by-step guide to diagnose and fix connectivity problems.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is parked safely before performing any resets.

Symptoms

•Wi-Fi icon is grayed out or indicates 'Not Connected'
•Unable to access internet services such as streaming or navigation updates
•Error message stating 'Wi-Fi not available' or similar
•Slow or intermittent connection when Wi-Fi is detected
•Vehicle fails to remember previously connected Wi-Fi networks

Diagnostic Steps

1
Check the Wi-Fi network settings in the vehicle's display to ensure that the correct network is selected.
2
Verify that the Wi-Fi router is functioning properly and broadcasting the signal without interruptions.
3
Restart the vehicle's infotainment system by holding down the two scroll wheels on the steering wheel until the screen turns black and reboots.
4
Ensure the Wi-Fi password is entered correctly if attempting to connect to a secured network.
5
Check for software updates in the vehicle’s settings and confirm that the latest software version is installed.
6
Inspect the Wi-Fi router settings to ensure that MAC address filtering is not blocking the vehicle's MAC address.

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

•Safety Warnings:** Ensure the vehicle is parked safely before performing any resets.

Parts Required

•None specific

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Wi-Fi icon is grayed out or indicates 'Not Connected'

•Unable to access internet services such as streaming or navigation updates

•Error message stating 'Wi-Fi not available' or similar

•Slow or intermittent connection when Wi-Fi is detected

•Vehicle fails to remember previously connected Wi-Fi networks

Diagnostic Steps

1
Check the Wi-Fi network settings in the vehicle's display to ensure that the correct network is selected.
2
Verify that the Wi-Fi router is functioning properly and broadcasting the signal without interruptions.
3
Restart the vehicle's infotainment system by holding down the two scroll wheels on the steering wheel until the screen turns black and reboots.
4
Ensure the Wi-Fi password is entered correctly if attempting to connect to a secured network.
5
Check for software updates in the vehicle’s settings and confirm that the latest software version is installed.
6
Inspect the Wi-Fi router settings to ensure that MAC address filtering is not blocking the vehicle's MAC address.

Solution

1. Preparation

Tools Required: None specific, but ensure you have access to the Wi-Fi router and its settings.
Safety Warnings: Ensure the vehicle is parked safely before performing any resets.

2. Restart the Infotainment System

Locate the two scroll wheels on the steering wheel.
Press and hold both scroll wheels simultaneously until the touchscreen goes black (approximately 10 seconds).
Wait for the Tesla logo to appear and release the scroll wheels.
Allow the system to reboot fully before testing the Wi-Fi connection again.

3. Forget and Reconnect to Wi-Fi Network

Go to the 'Controls' menu on the touchscreen.
Select 'Wi-Fi' and find the network that the vehicle is trying to connect to.
Tap on the network name and select 'Forget Network.'
Wait a moment and then select the same network again.
Re-enter the Wi-Fi password if prompted and confirm the connection.

4. Check Router Settings

Access the router's settings through a web browser using the router’s IP address (usually found on the router or its documentation).
Ensure the router is not set to filter MAC addresses. If it is, add the Tesla’s MAC address to the allowed list.
Check for firmware updates on the router and apply them if necessary.
Restart the router by unplugging it for a few seconds and plugging it back in.