1999 Lexus LS 400 Owners Manual - Page 359

IN CASE OF AN EMERGENCY (b) Starting a flooded engine If the engine will not start, your engine may be flooded because of repeated cranking. If this happens, turn the key to "START" with the accelerator pedal held down. Continue this operation for 30 seconds and then stop cranking. Then try starting the engine with your foot off the accelerator pedal. If the engine does not start after 30 seconds of cranking, release the key, wait a few minutes and try again. If the engine still will not start, it needs adjustment or repair. Call a Lexus dealer, Roadside Assistance or Customer Service Assistance. (See "Foreword".) NOTICE Do not crank for more than 30 seconds at a time. This may overheat the starter and wiring systems. 343