A voice overheat warning system for an automotive vehicle, by which the driver is informed of the cause of and measures against overheat, in voice form, in addition to the occurrence of overheat. The voice warning system comprises a radiator coolant temperature sensor, a fan-belt slipping sensor, and...http://www.google.es/patents/US4401848?utm_source=gb-gplus-sharePatente US4401848 - Voice warning system for an automotive vehicle