how to fix my Tesla Model 3 Original (2017-2023) that won’t unlock with the app?

Tesla Model 3 Highland (2024-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

465 words

Problem Statement

Learn how to troubleshoot and fix the unlocking issue with your Tesla Model 3 using the mobile app. Step-by-step guide for effective solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe location while performing connectivity resets or updates.

Symptoms

•Mobile app shows the vehicle as 'disconnected'
•Physical key card or fob can unlock the vehicle
•Unable to start the vehicle using the app
•Notifications of failed unlock attempts in the app
•Vehicle remains locked after multiple app attempts

Diagnostic Steps

1
Ensure the mobile device has a stable internet connection.
2
Check for updates in the Tesla app and install if available.
3
Restart the mobile app by closing it completely and reopening.
4
Verify the Bluetooth setting is enabled on the mobile device.
5
Reboot the vehicle’s touchscreen by holding down the two scroll wheels on the steering wheel until the Tesla logo appears.
6
Inspect the vehicle’s connectivity settings in the touchscreen menu for any errors.

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

•Ensure the vehicle is powered on and parked in a location with a good cellular connection.

Parts Required

•None

Related Faults

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Diagnostic Steps

1
Ensure the mobile device has a stable internet connection.
2
Check for updates in the Tesla app and install if available.
3
Restart the mobile app by closing it completely and reopening.
4
Verify the Bluetooth setting is enabled on the mobile device.
5
Reboot the vehicle’s touchscreen by holding down the two scroll wheels on the steering wheel until the Tesla logo appears.
6
Inspect the vehicle’s connectivity settings in the touchscreen menu for any errors.

Solution

1. Preparation

Tools Required: None
Ensure the vehicle is powered on and parked in a location with a good cellular connection.

2. Reconnect Mobile App to Vehicle

Open the Tesla app on your mobile device.
Go to "Settings" and select "Account."
Log out of your Tesla account.
Wait for 1 minute, then log back in with your credentials.
Once logged in, ensure that the vehicle appears in your app and check if it can be unlocked.

3. Reset Vehicle Connectivity

On the vehicle's touchscreen, navigate to “Controls.”
Select “Software” and then tap “Reset Connectivity.”
Wait for the vehicle to reboot its communication systems, which may take a few minutes.
Try unlocking the vehicle again using the app.

4. Update Vehicle Software

Check for available software updates by going to “Controls” > “Software” on the touchscreen.
If an update is available, follow the prompts to install the update.
After the update is complete, restart the app and attempt to unlock the vehicle again.