how to reprogram the key fob for my Tesla Model S Original (2012-2020)?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

524 words

Problem Statement

Learn how to reprogram the key fob for your Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, 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 a safe environment and that you have access to the vehicle.

Symptoms

•Key fob not unlocking or locking the doors
•Key fob not starting the vehicle
•Key fob's LED indicator not illuminating
•Inconsistent response from the key fob
•Tesla app unable to communicate with the vehicle

Diagnostic Steps

1
Check Key Fob Battery: Ensure the key fob battery is charged and functioning by replacing it if necessary.
2
Inspect Key Fob: Look for any physical damage or wear on the key fob that could affect its performance.
3
Verify Vehicle Settings: Check the vehicle settings to see if there are any issues with key fob recognition.
4
Disconnect Vehicle Battery: Temporarily disconnect the vehicle battery to perform a reset.
5
Attempt to Use Key Fob: After reconnecting the battery, attempt to use the key fob to determine if the issue persists.

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

•None specifically, but ensure you have a new key fob battery if a replacement is needed

Parts Required

•Key fob battery (CR2032 or equivalent)

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Diagnostic Steps

1
Check Key Fob Battery: Ensure the key fob battery is charged and functioning by replacing it if necessary.
2
Inspect Key Fob: Look for any physical damage or wear on the key fob that could affect its performance.
3
Verify Vehicle Settings: Check the vehicle settings to see if there are any issues with key fob recognition.
4
Disconnect Vehicle Battery: Temporarily disconnect the vehicle battery to perform a reset.
5
Attempt to Use Key Fob: After reconnecting the battery, attempt to use the key fob to determine if the issue persists.

Solution

1. Preparation

Tools Required: None specifically, but ensure you have a new key fob battery if a replacement is needed.
Safety Warnings: Ensure the vehicle is in a safe environment and that you have access to the vehicle.

2. Accessing Key Fob Programming Mode

Enter the Vehicle: Sit in the driver’s seat with the key fob.
Power On: Press the brake pedal and press the key fob against the right side of the steering column. This is where the car reads the key fob signal.
Wait for Response: Observe if the vehicle acknowledges the key fob. An indicator on the dashboard may light up.

3. Reprogramming the Key Fob

Open the Tesla Mobile App: Ensure your mobile device is connected to the internet.
Navigate to 'Keys' Section: Go to the 'Controls' section in the app and select 'Key Fobs'.
Follow On-Screen Instructions: Follow any prompts provided in the app for adding or reprogramming a key fob.

4. Finalizing the Process

Test the Key Fob: After reprogramming, test the key fob functionality by trying to lock/unlock the doors and start the vehicle.
Replace Key Fob Battery: If necessary, replace the key fob battery to ensure it is fully functional.