my Tesla Model S Plaid/Refresh (2021-present) won't start, just clicks, what should I do?

Solution

1. Preparation

• Ensure the vehicle is in a safe and well-ventilated area.
• Gather tools and parts required for the repair.
• Disconnect the vehicle from any charging sources.

2. Inspect and Test 12V Battery

• Sub-steps:

  1. Remove the access panel to the 12V battery compartment.
  2. Disconnect the negative (-) terminal first, followed by the positive (+) terminal.
  3. Remove the 12V battery and test it with a multimeter; replace if voltage is below 12.4 volts.
  4. If necessary, replace the 12V battery with a compatible unit (typically a Group 24 AGM battery).

• Tools Required:

  • Socket set
  • Multimeter
  • Torque wrench (for battery terminal connections)

3. Check and Clean Battery Connections

• Sub-steps:
  1. Inspect the battery terminals for corrosion; clean using a battery terminal cleaner or a mixture of baking soda and water.
  2. Reconnect the positive (+) terminal first, then the negative (-) terminal.
  3. Tighten the terminals to manufacturer specifications (usually about 10-15 ft-lbs).

4. Jump Start the Vehicle

• Sub-steps:
  1. Connect a portable jump starter to the 12V battery terminals following the correct polarity.
  2. Attempt to start the vehicle. If it starts, let it run for at least 30 minutes to recharge the 12V battery.

5. Inspect the Main Battery Pack Connections

• Sub-steps:
  1. If the vehicle still does not start, check the main battery pack connection.
  2. Inspect fuses related to the battery management system (BMS) for any blown fuses and replace as necessary.