Originally Posted by
Centaurus
You would have thought the vehicle's design team would have foreseen the possibility of electrical failure and designed a manual override system.
They did. It is a legal requirement in many countries that the internal door handles operate without electrical power, and it's very unlikely that any Toyota uses anything other than a mechanical connection for this purpose. However, it's largely academic, as if the vehicle is underwater the occupant would likely be unable to open the doors against the water.