2009 Lexus GS 460 Owners Manual - Page 600

5-2. Steps to take in an emergency If the engine will not start If the engine will not start even though correct starting procedures are being followed (→P. 133), consider each of the following points. n The engine will not start even if you are carrying the correct electronic key One of the following may be the cause of the problem. l There may not be sufficient fuel in the vehicle's tank. Add fuel to the vehicle. l The engine may be flooded. Try to restart the engine once more following correct starting procedures. (→P. 133) l There may be a malfunction in the immobilizer system. (→P. 84) n The starter motor turns over slowly, the interior lights and headlights are dim, or the horn does not sound or sounds at a low volume One of the following may be the cause of the problem. l The 12 volt battery may be discharged. (→P. 548) l The 12 volt battery terminal connections may be loose or corroded. n The starter motor does not turn over, the interior lights and headlights do not turn on, or the horn does not sound One of the following may be the cause of the problem. l One or both of the 12 volt battery terminals may be disconnected. l The 12 volt battery may be discharged. (→P. 548) Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures are unknown. 542 GS_G_U (OM30B43U) March 8, 2010 10:20 am