Vehicle exterior monitoring

A system, comprising:

• a side-view mirror assembly, comprising:
• an anchor element mountable to a vehicle exterior;
• and
• a foldable housing, including:
• a first surface directed in a forward direction when the foldable housing is in an unfolded position;
• a first capacitive cover and a first electric ground path attached to the first surface;
• a second surface that is a lateral side surface facing away from the anchor element;
• a second capacitive cover and a second electric ground path attached to the second surface;
• a third surface that is a hinged side surface hingedly connected to the anchor element;
• and
• a third capacitive cover and a third electric ground path attached to the third surface;
• wherein each of the capacitive covers are electrically insulated from one another;
• and
• a computer comprising a processor and a memory, the memory storing instructions executable by the processor to:
• determine respective capacitances of each of the capacitive covers of the surfaces;
• and
• actuate an actuator to move the housing to a folded position based on the determined respective capacitances.