Toyota IQ 2012 Owner's Manual page 202

2-2. Instrument cluster
*
1
: These lights turn on when the engine switch is turned to the ON
position (vehicles without smart entry & start system) or the
"ENGINE START STOP" switch is turned to IGNITION ON mode
(vehicles with smart entry & start system) to indicate that a system
check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a sys-
tem if a light does not come on, or if the lights do not turn off. Have
the vehicle inspected by any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional for details.
*
2
: The indicator flashes to indicate that the system is operating.
(P. 225)
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3
: Vehicles with audio system
*
4
: Vehicles without audio system
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