2007 Lexus GS 450h User Guide - Page 530

What to do if... What to do if...A tire punctures P. 455/ If you have a flat tire 456 P. 62 Hybrid vehicle immobilizer system If the 12 volt battery is discharged If the shift lever cannot be shifted from "P" The hybrid system does not start P. 466 If the hybrid system will not start P. 471 The shift lever cannot be moved out P. 467 The engine coolant temperature gauge enters the red zone P. 475 If your vehicle overheats Steam can be seen coming from under the hood The key is lost P. 468 If you lose your keys The battery runs out P. 471 If the 12 volt battery is discharged The doors cannot be locked P. 26 Doors The horn begins to sound P. 64 Alarm The vehicle is stuck in mud or sand P. 478 If the vehicle becomes stuck 518