my Tesla Model S Original (2012-2020) keyless entry is not working what to do

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

542 words

Problem Statement

Learn how to diagnose and fix keyless entry issues in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

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 when performing any checks or repairs.

Symptoms

•Key fob not recognized by the vehicle
•No response from the door handles when the key fob is nearby
•Key not detected warning on the dashboard
•Inability to start the vehicle using the key fob
•Battery in the key fob may need replacement

Diagnostic Steps

1
Check the battery level of the key fob using a multimeter.
2
Replace the battery in the key fob if it is low or dead.
3
Attempt to re-pair the key fob with the vehicle via the touchscreen settings.
4
Inspect the key fob for physical damage or wear.
5
Verify that the vehicle’s software is up to date.
6
Perform a reset of the vehicle’s systems by rebooting the touchscreen.

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
•Multimeter
•Replacement CR2032 battery

Parts Required

•CR2032 key fob battery

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 using a multimeter.
2
Replace the battery in the key fob if it is low or dead.
3
Attempt to re-pair the key fob with the vehicle via the touchscreen settings.
4
Inspect the key fob for physical damage or wear.
5
Verify that the vehicle’s software is up to date.
6
Perform a reset of the vehicle’s systems by rebooting the touchscreen.

Solution

1. Preparation

Gather tools: Small flathead screwdriver, multimeter, replacement CR2032 battery (if needed).
Ensure the vehicle is in a safe, secure location with the key fob present.

2. Check and Replace Key Fob Battery

Locate the small slot or opening on the key fob.
Use the flathead screwdriver to gently pry open the key fob casing.
Carefully remove the old battery and note the orientation.
Insert the new CR2032 battery with the correct polarity.
Snap the key fob casing back together until it clicks.

3. Re-Pair Key Fob

Enter the vehicle and power on the touchscreen.
Navigate to "Controls" > "Locks".
Select "Add Key Fob" and follow the on-screen instructions.
Hold the key fob near the center console when prompted.
Confirm successful pairing on the touchscreen.

4. Software Update

Check for software updates by navigating to "Controls" > "Software".
If an update is available, connect the vehicle to Wi-Fi and download/install the update.
Follow prompts to complete the installation, ensuring the vehicle remains powered during the process.

5. System Reset

To reboot the vehicle’s systems, press and hold both scroll wheels on the steering wheel until the screen turns off.
Release the scroll wheels and allow the system to restart.
Wait for the touchscreen to power back on before testing the keyless entry functionality.