2006 Lexus GS 300 Owners Manual - Page 456

STARTING AND DRIVING ELECTRIC POWER STEERING SYSTEM The electric power steering system, using an electric motor, assists the turning of the steering wheel. In the following cases, you may feel the steering becomes heavy. However, the electric power steering system warning light does not come on. (Because it is not a malfunction.) When maneuvering or turning frequently over a long time, the power steering effect will be reduced to prevent the system from overheating. Avoid turning the steering wheel, or stop the vehicle and select the engine switch in "ACC" or "OFF" mode. The system will become cool in about 10 minutes. 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. NOTICE Frequent maneuvering and turning over a long time may cause damage to the system in which the mechanism prevents overheating of the electric power steering system. When the battery is discharged, check the battery's condition. If necessary, recharge or replace the battery. For details, see "Checking battery condition" on page 571. 432