Toyota Camry 2012 Owner's Manual page 396

5-1. Essential information
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Emergency flashers
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Use the emergency flashers if the vehicle malfunctions or is
involved in an accident.
NOTICE
■
To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
engine is not running.
414
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.