2011 Lexus LS 600h Owners Manual - Page 500

5-2. Steps to take in an emergency Warning light Warning light/Details Correction procedure High coolant temperature warning light →P. 530 Indicates high engine coolant temperature Master warning light A buzzer sounds and the warning light comes on or flashes to indicate that the master warning system has detected a malfunction. →P. 508 *1: Open door warning buzzer: The open door warning buzzer sounds to alert one or more of the doors is not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]). *2: Driver's and front passenger's seat belt buzzer: The driver's and front passenger's seat belt buzzer sound to alert the driver and front passenger that his or her seat belt is not fastened. The buzzer sounds intermittently for 10 seconds after the vehicle reaches a speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for 20 more seconds. 5 When trouble arises 503