Lexus IS 350C 2012 Manual page 535

Changing "ENGINE START STOP" switch modes and starting the engine
Automatic transmission
Shift the shift lever to P and apply the brakes.
STEP 1
STEP 2
To change "ENGINE START STOP" switch modes: Within 10
STEP 3
seconds of the buzzer sounding, release the brake pedal and
press the "ENGINE START STOP" switch. Modes can be
changed each time the switch is pressed.
(P. 148)
To start the engine: Press the "ENGINE START STOP" switch
within 10 seconds after the buzzer sounds, keeping the brake
pedal depressed.
5-2. Steps to take in an emergency
Touch the Lexus emblem side of
the electronic
"ENGINE START STOP" switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the "ENGINE START STOP"
switch if any of the doors is opened
and closed while the key is touched
to the switch.
key to the
535
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