In reference to [this post. ](https://www.theverge.com/2024/6/21/24183439/tesla-model-y-arizona-toddler-trapped-rescued)
In: Engineering
In addition to the other comment, it enables a system where the high voltage battery is disconnected when the car is turned off, for safety.
The 12V battery engages a relay which connects the high voltage supply to the motors and controls.
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