how to resolve the “key not detected” issue in Tesla Model S Original (2012-2020)

Solution

1. Key Fob Battery Replacement

• Sub-steps:
  1. Locate the small notch on the side of the key fob and use a flathead screwdriver to gently pry it open.
  2. Remove the old battery (CR2032) and replace it with a new one, ensuring the positive side is facing up.
  3. Reassemble the key fob and press the buttons to ensure it functions correctly.

2. Re-Pair Key Fob

• Sub-steps:
  1. Enter the vehicle and ensure it is in "Park" mode.
  2. On the touchscreen, navigate to "Settings" > "Keys & Locks."
  3. Select "Add Key" and follow the on-screen instructions to place the key fob near the designated area (between the front seats).
  4. Confirm the pairing process is successful by checking if the vehicle recognizes the key fob.

3. Firmware Update

• Sub-steps:
  1. Connect the vehicle to Wi-Fi.
  2. On the touchscreen, go to "Software" and check for any available updates.
  3. If an update is available, follow the prompts to download and install it.
  4. Restart the vehicle after the update is complete.

4. Inspect Key Fob Receiver Module

• Sub-steps:
  1. Remove the lower dash panel on the driver's side to access the key fob receiver.
  2. Visually inspect the receiver for any loose connections or damage.
  3. If damage is found, disconnect the battery, replace the receiver module, and reconnect everything.
  4. Reassemble the dash panel and test the key fob recognition.