Lexus 2007 GS430 Quick Manual page 560

Changing engine switch modes and starting the engine
Put the shift lever in "P" and apply the brakes.
STEP 1
STEP 2
To change engine switch modes: Within 5 seconds of the buzzer
STEP 3
sounding, release the brake pedal and press the engine switch.
Modes can be changed each time the switch is pressed. ( P. 97)
To start the engine: Press the engine switch within 5 seconds after
the buzzer sounds, keep the brake pedal depressed.
In the event that the engine still cannot be operated, contact your Lexus
dealer.
Stopping the engine
n
Shift the shift lever to P and press the engine switch as you normally do when stop-
ping the engine
Replacing the key battery
n
As the above procedure is the temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery depletes. ( P.
411)
5-2. Steps to take in an emergency
Touch the Lexus emblem side of
the electronic key to the engine
switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
engine switch if any of the doors is
opened and closed while the key is
touched to the switch.
I n f o r ma t i o n P r o v i d e d b y :
5
487