Accident data memory.

In order to record accidents caused to parked vehicles, for example by other cars, the invention provides that an accident data memory installed in the parked vehicle is extended by means which, preferably after a certain time-lag after switching off the engine, maintain the accident data memory of the vehicle operative for a limited time with a sensitivity which is greater than that prevailing when the vehicle engine is switched on, in constant readiness for the detection and recording of an accident situation.