my Tesla Model S Original (2012-2020) key fob is not working, how can I fix it?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes

Time

medium

Difficulty

high

Severity

3 min read

482 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to fix a non-working key fob for Tesla Model S (2012-2020). Step-by-step guide with diagnostic steps, tools required, and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Handle the key fob carefully to avoid damaging internal components.

Symptoms

•Key fob not responding to button presses
•Vehicle not detecting key fob proximity
•No LED light illumination when buttons are pressed
•Inability to unlock or start the vehicle
•Reduced range of key fob operation

Diagnostic Steps

1
Check the battery level of the key fob by replacing the battery with a new one.
2
Inspect the key fob for physical damage, such as cracked casing or damaged buttons.
3
Verify that the vehicle's software is up to date by checking in the settings menu.
4
Attempt to pair the key fob again with the vehicle using the Tesla app.
5
Check for interference from other electronic devices or environmental factors.
6
Use a backup method (like the Tesla app or key card) to access the vehicle and check if the car responds.

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
•Clean cloth

Parts Required

•CR2032 battery (new)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery level of the key fob by replacing the battery with a new one.
2
Inspect the key fob for physical damage, such as cracked casing or damaged buttons.
3
Verify that the vehicle's software is up to date by checking in the settings menu.
4
Attempt to pair the key fob again with the vehicle using the Tesla app.
5
Check for interference from other electronic devices or environmental factors.
6
Use a backup method (like the Tesla app or key card) to access the vehicle and check if the car responds.

Solution

1. Preparation

Gather necessary tools: small flathead screwdriver, new CR2032 battery, and a clean cloth.
Ensure the vehicle is in a safe location and powered down.

2. Replace Key Fob Battery

Open the Key Fob:
- Use a small flathead screwdriver to gently pry open the key fob casing.
- Carefully separate the two halves to avoid damaging the clips.
Remove Old Battery:
- Note the orientation of the battery for correct installation.
- Remove the old CR2032 battery from the fob.
Install New Battery:
- Insert the new CR2032 battery into the key fob, ensuring the positive (+) side is facing up.
- Press down firmly to secure the battery in place.
Reassemble the Key Fob:
- Align the two halves of the key fob and press them together until they click securely.
- Check for any gaps indicating improper sealing.

3. Re-Pair Key Fob with Vehicle

Access Vehicle Settings:
- Sit in the vehicle with the key fob.
- Use the touchscreen to navigate to 'Controls' > 'Locks'.
Initiate Pairing:
- Select 'Add Key Fob' and follow the on-screen instructions.
- Confirm the pairing process when prompted.