Toyota 2013 Yaris Owner's Manual page 319

5-1. Essential information
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when
an airbag inflates upon collision, the fuel pump shut off system
stops the supply of fuel to the engine.
Follow the procedure below to restart the engine after the system is
activated.
Turn the engine switch to the "ACC" or "LOCK" position.
Restart the engine.
NOTICE
■
Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
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