2011 Toyota Prius Owners Manual - Page 533

5-2. Steps to take in an emergency *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 reminder buzzer: The driver's and front passenger's seat belts reminder sounds 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 has reached a speed of at lest 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. n If the malfunction indicator lamp comes on while driving First check whether the fuel tank cap is loose. If it is, tighten it securely. The light will go off after taking several driving trips. If the light does not go off even after several trips, contact your Toyota dealer as soon as possible. n Electric power steering warning light When the voltage is low or drops, the electric power steering warning light may come on. n SRS warning light This warning light system monitors the airbag sensor assembly, front airbag sensors, side and curtain shield airbag sensors, curtain shield airbag sensors, driver's seat position sensor, driver's seat belt buckle switch, front passenger occupant classification system, "AIR BAG ON" indicator light, "AIR BAG OFF" indicator light, front passenger's seat belt buckle switch, seat belt pretensioner assemblies, inflators, interconnecting wiring and power sources. (→P. 115) n Open moon roof reminder buzzer The buzzer indicates that the moon roof is not fully closed with the hybrid system off and the driver's door opened. 5 When trouble arises 511 PRIUS_U (OM47685U) DVD