The following is an extract from the Owners Manual.IIRC I think you just have to press the blue button twice to fire it up again but I could be wrong.
Caution
If the vehicle must be restarted
while it is still moving, move the
shift lever to N and press 'power button' twice
without pressing the brake pedal.
The propulsion system will not
restart in any other way.
I have not tried it !