how to fix my Tesla Model Y Current (2020-present) that won't start

Solution

1. Preparation

• Gather tools: multimeter, socket set, and OBD-II scanner if needed.
• Ensure the vehicle is in a safe location with ample space to work.
• Disconnect the vehicle from any charging source.

2. Inspect and Test the 12V Battery

• Sub-steps:
  1. Open the trunk and locate the 12V battery.
  2. Use a multimeter to measure the voltage of the battery. If it's below 12.4 volts, proceed to the next step.
  3. Disconnect the negative terminal first, followed by the positive terminal.
  4. Clean any corrosion from the terminal connections using a wire brush and a cleaning solution.
  5. Reconnect the terminals securely, starting with the positive terminal first, then the negative terminal.

3. Jump Start the 12V Battery (if necessary)

• Sub-steps:
  1. Obtain a jump starter or another vehicle with a functional battery.
  2. Connect the positive terminal of the jump starter to the positive terminal of the 12V battery.
  3. Connect the negative terminal of the jump starter to a ground point on the vehicle (not directly to the battery).
  4. Attempt to start the vehicle after a few minutes of charging the battery.
  5. If it starts, allow the vehicle to run for a while to recharge the 12V battery.

4. Reset the Vehicle Systems

• Sub-steps:
  1. With the vehicle powered on, navigate to the settings menu using the touchscreen.
  2. Select 'Software' and then choose 'Reboot Vehicle'.
  3. Follow prompts to complete the reset process.

5. Check for Software Updates

• Sub-steps:
  1. While the vehicle is powered on, connect to Wi-Fi if available.
  2. Go to the 'Software' section in the touchscreen interface.
  3. Check for updates and install any available updates for the vehicle.