Lexus 2004 LS430 Owner's Manual page 318

STARTING AND DRIVING
31L346a
When you enter the vehicle carrying a smart key and push
the ignition switch, the electronic code in the key is
automatically checked as to whether it corresponds to the
registered ID code for the vehicle. The key indicator light
comes on, the steering column lock is released, and the
engine immobilizer system is cancelled.
At this time, the security indicator light goes off and you can
start the engine when you turn the ignition switch and the key
indicator light does not come on. When you turn the ignition
switch, turn it slowly and surely. If you turn it quickly, it may
become stuck. To free it, turn the steering wheel slightly in
either direction with the ignition switch pushed in.
If you push the ignition switch when the smart key is not within
the effective range of the smart key system, a warning tone
sounds and "Key is not Detected" appears on the display.
"START" - Starter motor on. The ignition switch will
return to the "ON" position when released.
For starting tips, see page 302.
298
"ON" - Engine on and all accessories on.
This is the normal driving position.
NOTICE
Do not leave the ignition switch in the "ON" position if
the engine is not running. The battery will discharge
and the electronic ignition system could be damaged.
"ACC" - Accessories such as the radio operate, but the
engine is off.