From their FAQ:
How do Passengers escape after a bad crash?
Jatech has developed a Proprietary Access/Escape System which is built into every Retractable Door vehicle. An Impact Sensor releases all latches after a short built-in time lapse to allow for secondary impacts. The door can then be pushed outwards to the ground as there are no hinges to hold front end of the door in place.
Paramedics, Firemen and other accident responding personnel also found that access to passengers would be much improved in any severe accident situation.
What happens if the vehicle experiences power failure?
Our vehicles are equipped with a Manual Override which can be operated from inside or outside the vehicle.