my Tesla Model S Plaid/Refresh (2021-present) won’t unlock remotely what’s the issue

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

500 words

Problem Statement

Learn how to diagnose and fix remote unlock issues in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Handle batteries with care to avoid spills and corrosion.
•Disconnect any power sources when working on electronic components.

Symptoms

•Remote unlock feature not functioning
•Mobile app shows vehicle is offline
•Key fob not responding to unlock commands
•No response from the vehicle when approaching with the key fob
•"No key detected" message on the vehicle's display

Diagnostic Steps

1
Check the mobile app for connectivity issues or updates.
2
Verify if the key fob battery is low by testing its functionality with another Tesla vehicle.
3
Ensure the vehicle's software is up to date by checking settings in the mobile app.
4
Inspect the key fob for physical damage or water infiltration.
5
Test the vehicle's Bluetooth connection by attempting to unlock using the mobile app within proximity.

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

•Smartphone with Tesla app
•Multimeter
•Replacement CR2032 battery

Parts Required

•CR2032 battery
•Replacement key fob

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Diagnostic Steps

1
Check the mobile app for connectivity issues or updates.
2
Verify if the key fob battery is low by testing its functionality with another Tesla vehicle.
3
Ensure the vehicle's software is up to date by checking settings in the mobile app.
4
Inspect the key fob for physical damage or water infiltration.
5
Test the vehicle's Bluetooth connection by attempting to unlock using the mobile app within proximity.

Solution

1. Preparation

Gather tools: smartphone with the Tesla app, spare key fob (if available), multimeter for testing battery.
Ensure the vehicle is in a well-lit area.

2. Check Key Fob Battery

Sub-steps:
1. Remove the key fob from its case if applicable.
2. Use a multimeter to check the voltage of the key fob battery.
3. If voltage is below 3.0V, replace the battery with a new CR2032 battery.
Tools Required: Multimeter, replacement CR2032 battery.

3. Update Vehicle Software

Sub-steps:
1. Connect the vehicle to Wi-Fi if it is not already connected.
2. Access the settings from the vehicle’s touchscreen.
3. Check for available software updates and install if necessary.
Safety Warnings: Ensure the vehicle is parked safely during the update process.

4. Reset Key Fob Connection

Sub-steps:
1. In the vehicle, go to 'Controls' > 'Keys'.
2. Select the option to ‘Forget’ the current key fob.
3. Re-pair the key fob by holding it against the center console until prompted.
Tools Required: None.

5. Inspect for Physical Damage

Sub-steps:
1. Visually inspect the key fob for cracks or signs of water damage.
2. If damage is evident, consider replacing the key fob.
Parts Required: Replacement key fob if necessary.