my Tesla Model S Plaid/Refresh (2021-present) won't unlock with key fob what to do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes - 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

511 words

Problem Statement

Learn how to troubleshoot and fix key fob issues for Tesla Model S Plaid. Step-by-step guide with diagnostic steps and solutions to unlock your vehicle.

Affected Component

Electrical

Estimated Time

30 minutes - 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a safe location where it cannot roll or move unexpectedly during testing.

Symptoms

•Key fob not responding to unlock command
•Vehicle not recognizing the key fob proximity
•No LED light illumination on the key fob when buttons are pressed
•Vehicle remains locked despite attempts to unlock
•Possible notifications on the Tesla app indicating key fob issues

Diagnostic Steps

1
Check the key fob battery level by opening the fob and inspecting the battery condition.
2
Test the key fob's functionality by using a different key fob (if available) to see if the issue persists.
3
Ensure that the vehicle's software is up to date by checking for updates in the Tesla app.
4
Inspect the vehicle for any obstructions that might prevent the key fob from working, such as interference from other electronic devices.
5
Attempt to unlock the vehicle using the Tesla app to rule out key fob issues.

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

•Small flathead screwdriver
•CR2032 battery

Parts Required

•CR2032 battery

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Diagnostic Steps

1
Check the key fob battery level by opening the fob and inspecting the battery condition.
2
Test the key fob's functionality by using a different key fob (if available) to see if the issue persists.
3
Ensure that the vehicle's software is up to date by checking for updates in the Tesla app.
4
Inspect the vehicle for any obstructions that might prevent the key fob from working, such as interference from other electronic devices.
5
Attempt to unlock the vehicle using the Tesla app to rule out key fob issues.

Solution

1. Battery Replacement

Tools Required: Small flathead screwdriver, CR2032 battery
Open the key fob by inserting the flathead screwdriver into the designated slot and gently prying it apart.
Remove the old battery and replace it with a new CR2032 battery, ensuring the positive (+) side is facing up.
Snap the key fob back together securely.

2. Key Fob Reprogramming

Tools Required: None
Log in to your Tesla account through the app or the vehicle display.
Navigate to the "Keys" section and follow the prompts to remove and re-add the key fob to the vehicle.
Follow on-screen instructions to complete the pairing process.

3. Physical Inspection

Tools Required: None
Inspect the key fob for any physical damage or signs of wear that may affect functionality.
Clean the contacts inside the key fob using a soft cloth or cotton swab.

4. Vehicle Reset

Tools Required: None
Perform a soft reset of the vehicle by holding down both scroll wheel buttons on the steering wheel until the screen turns off and the Tesla logo appears.
Wait for the system to reboot and test the key fob functionality again.