HV Battery And HV Circuits
The HV battery stores all of the energy for the motor and vehicle electrical systems. The HV circuits can sense a variety of conditions that could potentially damage the vehicle or pose a safety risk. Their primary response in these circumstances is to disconnect the HV from the rest of the vehicle.
When the HV battery is not in a vehicle, high voltage is not accessible without removing the penthouse cover.
WARNING:
Remove all jewelry (watches, bracelets, rings, necklaces, earrings, ID tags, piercings, etc.) from your person, and all objects (keys, coins, pens, pencils, tools, fasteners, etc.) from your pockets before performing any procedure that exposes you to high voltage.
WARNING:
If corrective eyewear is necessary to safely perform any procedure, make sure that the eyewear is securely restrained to the head and cannot fall off.
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:
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:
If the HV battery or vehicle displays signs of escaping gases, smoke, flames, excessive heat, sparks, or arcing, contact the local emergency department and refer to the applicable Emergency Response Guide, available at https://www.tesla.com/firstresponders. Gases or smoke exiting a lithium-ion HV battery are likely flammable and could ignite at any time.