2006 Lexus GS 300 Owners Manual - Page 454

STARTING AND DRIVING "ABS" warning light If either of 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 engine switch is selected in "IG−ON" mode. G31080 D The light remains on after the engine is started (GS430), or remains on after the engine switch is selected in "IG−ON" mode (GS300). D The light comes on while you are driving. A warning light turning on briefly during operation does not indicate a problem. " 1 U.S.A. 2 Canada GS430-The light comes on when the engine switch is selected in "IG−ON" mode. If the anti−lock brake system and the brake assist system work properly, the light turns off in a few seconds after the engine is started. GS300-The light comes on for a few seconds when the engine switch is selected in "IG−ON" mode. It indicates the anti−lock brake system and the brake assist system work properly. If either system malfunctions, the light comes on again. When the "ABS" warning light is on, the anti−lock brake system and the brake assist system do not operate, but the brake system still operates conventionally. CAUTION If the "ABS" warning light remains on together with the brake system warning light (red), immediately stop your vehicle at a safe place and contact your Lexus dealer. In this case, not only the anti−lock brake system will fail but also the vehicle will become extremely unstable during braking. GS430 only-Either of the following conditions may occur, but does not indicate a malfunction: D The light may stay on for about 60 seconds after the engine is started. It is normal if it turns off after a while. D Depressing the brake pedal repeatedly may turn on the light. It is normal if it turns off after a few seconds. 430