The invention relates to a method for managing sporadic anomalies of a motorization system of a motor vehicle (1), said system comprising a computer (20) and a set of sensors (10), said computer (20) comprising a computer (20). memory area (MEM) and being able to receive measurements made by the set of sensors (10) and to detect anomalies on the basis of the measurements received, the anomalies of the system being defined in a predetermined list of sporadic anomalies at a given time , said method comprising the steps of: detection (E1) of an anomaly, measurement (E2) of the duration (d1) of the detected anomaly, if the duration (d1) measured is less than a predetermined duration threshold (S1) and if the detected anomaly is present in the predetermined list of sporadic anomalies at the current instant, increment (E5) of a counter of occurrences (CO), if the value of the occurrence counter (CO) is greater than a predetermined occurrence threshold (SO), confirmation (E8) of the anomaly detected as being a sporadic anomaly. Figure for the abstract: Fig. 2
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