2002 Lexus GS 430 Owners Manual - Page 63

GAUGES, METERS AND SERVICE REMINDER INDICATORS (h) Malfunction Indicator Lamp This lamp comes on in the following cases. a. The fuel tank is completely empty. (See "Fuel gauge" on page 38 for instructions.) b. The fuel tank cap is not tightened securely. (See "Fuel tank cap" on page 69 for instructions.) c. There is a problem somewhere in your engine electrical system, automatic transmission electrical system or electronic throttle control system. If it comes on while you are driving in case "c"., have your vehicle checked/repaired by your Lexus dealer as soon as possible. If this lamp comes on and the engine speed does not increase with the accelerator pedal depressed down to about the middle position, there may be a problem somewhere in your electronic throttle control system. At this time, if you depress the accelerator pedal more firmly and slowly, you can drive your vehicle at low speeds. Have your Lexus checked by your Lexus dealer as soon as possible. Even if the abnormality of the electronic throttle control system is corrected during low speed driving, the system may not be recovered until the engine is stopped and the ignition key is turned to "ACC" or "LOCK" position. (i) "ABS" Warning Light The light comes on when the ignition key is turned to the "ON" position. If the anti-lock brake system and the brake assist system work properly, the light turns off after a few seconds. Thereafter, if either of the systems malfunctions, the light comes on again. When the "ABS" warning light is on (and the brake system warning light is off), the anti-lock brake system, the brake assist system, the traction control system and/or the vehicle skid control system do/does not operate, but the brake system still operates conventionally. When the "ABS" warning light is on (and the brake system warning light is off), the anti-lock brake system does not operate so that the wheels could lock up during a sudden braking or braking on slippery road surfaces. If either of the following conditions occurs, this indicates a malfunction somewhere in the parts 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 ignition key is turned to the "ON" position, or remains on. D The light comes on while you are driving. 46