Toyota 2015 Prius C Owner's Manual page 88

88
2. Instrument cluster
*
: These lights turn on when the engine switch is turned to the "ON" position
(vehicles without a smart key system) or the "POWER" switch is turned to
ON mode (vehicles with a smart key system) to indicate that a system
check is being performed. They will turn off after the hybrid system is on, or
after a few seconds. There may be a malfunction in a system if the lights
do not come on, or turn off. Have the vehicle inspected by your Toyota
dealer.
I n f o r ma t i o n P r o v i d e d b y :