What occurs when automatic sensitivity is overridden during a GPS approach?

When automatic sensitivity is overridden during a GPS approach, the system cancels the approach mode annunciation. This is crucial because the annunciation indicates that the aircraft is in an approach phase where it should ideally be adhering to more precise navigation parameters necessary for the procedure. Overriding the sensitivity compromises the integrity of the approach, which can lead to incorrect flight path tracking and an inability to properly follow the approach.

This action may occur due to pilot intervention or specific adjustments that necessitate a change in how the GPS system behaves regarding navigation precision. Understanding this aspect emphasizes the importance of the annunciation as a visual indication of the aircraft's operational status in relation to the approach being flown.