Dash Cam Motion Sensor and Parking-Mode Guide

The camera analyses changes in the image and saves or starts a clip when movement crosses its threshold. Exact behaviour varies, especially whether footage from before the trigger is retained.

Only if the model supports parking mode and continues receiving suitable power. An ignition-switched accessory socket normally cuts power after shutdown.

A buffered mode keeps a short rolling segment so a saved event can include the moments before detection. The buffer length is model-specific.

Passing vehicles, changing light, rain or moving branches can trigger image-based detection. Adjust sensitivity or parking position using the manufacturer's guidance.