2004 Lexus LS 430 User Guide 2 - Page 103

GAUGES, METERS AND SERVICE REMINDER INDICATORS (e) Discharge Warning Light This light warns that the battery is being discharged. If it comes on while you are driving, stop the vehicle, turn off the engine, and check for the cause. Look first at the engine drive belt. D If it is loose or broken, the generator will not charge the battery properly. D If the belt is O.K., there is a problem somewhere in the charging system. The engine ignition will continue to operate, however, until the battery is discharged. Turn off the air conditioning, blower, radio, etc., and drive directly to the nearest Lexus dealer or repair shop. (f) Malfunction Indicator Lamp This lamp comes on when the ignition switch is turned to the "ON" position and goes off after the engine starts. This means that the warning light system is operating properly. If the lamp remains on, or the lamp comes on while driving, first check the following: D Empty fuel tank If the fuel tank is empty, refuel immediately. D Loose fuel tank cap If the fuel tank cap is loose, securely tighten it. These cases are temporary malfunctions. The malfunction indicator lamp will go off after taking several driving trips. If the lamp will not go off even after several trips, contact your Lexus dealer as soon as possible. If the fuel tank is not empty or the fuel tank cap is not loose...D There is a problem somewhere in the engine, emission control system, electronic throttle control system, automatic transmission electrical system or warning light system itself. Contact your Lexus dealer as soon as possible to service the vehicle. If this lamp comes on and the engine speed does not increase with the accelerator pedal depressed, there may be a problem somewhere in your electronic throttle control system. NOTICE Do not continue driving if the engine drive belt is broken or loose. 85