my Tesla Model 3 has a flashing battery warning light, what does it mean?

Solution

1. Preparation

• Ensure the vehicle is parked on a flat surface and turned off.
• Disconnect the vehicle from any charging source.

2. Inspect Battery Connections

• Tools Required: Socket set, torque wrench
• Instructions:
  1. Open the rear trunk and remove the plastic cover to access the battery connections.
  2. Inspect the battery terminals for corrosion or loose connections.
  3. If corroded, clean the terminals with a wire brush and re-tighten them to the manufacturer’s specifications (typically around 10-15 Nm).

3. Check 12V Battery

• Instructions:
  1. Use a multimeter to measure the voltage of the 12V battery. A healthy battery should read between 12.4V and 12.8V.
  2. If the voltage is below 12.4V, consider replacing the 12V battery.
  3. Replace the 12V battery by disconnecting the negative terminal first, followed by the positive terminal. Install the new battery by reversing the order.

4. Update Battery Management System

• Tools Required: Tesla mobile app or desktop interface
• Instructions:
  1. Check for any available software updates for your Tesla.
  2. If an update is available, follow the prompts to install it.

5. Test Charging System

• Instructions:
  1. Connect the vehicle to a compatible charger.
  2. Monitor the charging process for any irregularities.
  3. If the vehicle does not charge or the warning light persists, further diagnostics may be necessary.