HV Battery
The HV battery stores all of the energy for the motor and vehicle electrical systems. The battery can sense a variety of conditions that could potentially damage the vehicle or pose a safety risk. Its primary response in these circumstances is to disconnect the high voltage from the rest of the vehicle.
When the battery is not in a vehicle, high voltage is not accessible without removing the enclosure cover.
WARNING:
Always remove the HV battery before performing any procedure that might require using a drill near the HV battery, especially drilling downward from inside the vehicle.
WARNING:
An HV battery poses a significant high voltage and electrocution risk if the outer enclosure or safety circuits have been compromised or have been significantly damaged.
WARNING:
If the battery or vehicle displays signs of escaping gases, smoke, flames, excessive heat, sparks or arcing, contact the local emergency department and refer to the First Responder Guide, available at http://www.tesla.com/firstresponders and/or the Lithium-Ion Battery Emergency Response Guide, TN-13-16-007. Gases or smoke exiting a lithium-ion HV battery are likely flammable and could ignite at any time.