Lexus GX470 2006 Service Manual page 401

STARTING AND DRIVING
If the brake pedal is depressed while the vehicle stability
control system is active, the brake pedal will become hard at
an earlier position than usual.
respond to the pedal force if depressed further.
The slip indicator light comes on for a few seconds when the
ignition key is turned to "ON". If the indicator light does not
come on when the ignition is turned on, contact your Lexus
dealer.
Pushing the center differential lock switch automatically
turns the vehicle stability control system off. At this time,
the "VSC OFF" indicator comes on with the center
differential lock indicator light.
"VSC OFF" indicator light comes on for a few seconds when
the ignition key is turned to "ON". It will come on again when
you push the center differential lock switch to turn off the
system.
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In the following cases, contact your Lexus dealer:
D The indicator light does not come on when the ignition key
However, the brakes will
D The indicator light remains on after the ignition is turned on.
D The indicator light comes on when the system is on while
"VSC TRAC" warning light
This light warns that when there is a problem somewhere in the
following.
I n f o r ma t i o n P r o v i d e d b y :
is turned "ON".
driving.
NOTICE
Make sure that the center differential lock indicator light
goes off before normal driving.