my Tesla Model S Plaid/Refresh (2021-present) won't unlock with remote what's wrong

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

508 words

Problem Statement

Learn how to troubleshoot and fix remote unlock issues for Tesla Model S Plaid (2021-present). Step-by-step guide with symptoms and solutions.

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 performing any diagnostics or repairs.

Symptoms

•Remote key fob is unresponsive to unlock commands
•Vehicle does not respond to mobile app unlock request
•Keyless entry feature is non-functional
•Dashboard displays a 'Key not detected' message
•Bluetooth connection issues with the mobile app
•Physical key card does not unlock the doors

Diagnostic Steps

1
Check the battery level of the remote key fob.
2
Attempt to unlock the vehicle using the Tesla mobile app.
3
Inspect the vehicle's Bluetooth settings to ensure it is discoverable.
4
Verify if the vehicle's firmware is up to date.
5
Test the key card to see if it can unlock the doors.
6
Scan for any error codes using Tesla's diagnostic tool.

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

•Flathead screwdriver

Parts Required

•CR2032 battery

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Diagnostic Steps

1
Check the battery level of the remote key fob.
2
Attempt to unlock the vehicle using the Tesla mobile app.
3
Inspect the vehicle's Bluetooth settings to ensure it is discoverable.
4
Verify if the vehicle's firmware is up to date.
5
Test the key card to see if it can unlock the doors.
6
Scan for any error codes using Tesla's diagnostic tool.

Solution

1. Preparation

Gather tools and materials: Tesla key fob battery, mobile device with Tesla app, key card.
Ensure the vehicle is in a safe location and has adequate charge.

2. Replace Key Fob Battery

Open the key fob by lifting the cover carefully using a flathead screwdriver.
Remove the old battery (typically CR2032) and dispose of it properly.
Insert a new battery, ensuring the positive side is facing up.
Reassemble the key fob and test it for functionality.

3. Update Vehicle Firmware (if needed)

Connect the vehicle to a Wi-Fi network.
From the vehicle's touchscreen, navigate to 'Software' and check for available updates.
If an update is available, follow on-screen instructions to install it.

4. Check Bluetooth Connectivity

On the vehicle's touchscreen, go to 'Controls' > 'Bluetooth'.
Ensure that Bluetooth is activated and the vehicle is set to be discoverable.
On the mobile device, check if the Tesla app is connected. If not, remove the vehicle from the device's Bluetooth settings and re-pair it.

5. Test Key Card Functionality

Using the key card, swipe it against the card reader located on the driver's side door.
If successful, the vehicle should unlock. If not, ensure the key card is functioning properly and not damaged.