Lexus GS430 User Manual page 463

G31040
"Electric power steering system warning light
The light comes on when the engine switch is selected in
"IG−ON" mode. If the electric power steering system works
properly, the light turns off after a few seconds. If the system
has malfunctions, the light comes on again.
If the following conditions occur, this indicates a
malfunction somewhere in the components monitored by
the warning light system. Contact your Lexus dealer as
soon as possible to service the vehicle.
D The light does not come on when the engine switch is
selected in "IG−ON" mode or remains on.
D The light stays on while you are driving.
STARTING AND DRIVING
CAUTION
If the electric power steering system warning light
comes on, take your vehicle to your Lexus dealer as
soon as possible. In this case, more effort is required
for the steering wheel to turn than usual. Drive your
vehicle while firmly gripping the steering wheel.
439