Lincoln 2016 Navigator Series Owner's Manual page 209

Driving Aids
E142441
Zone coverage also decreases when parking
at shallow angles. Here, the left sensor is
mostly obstructed; zone coverage on that
side is severely limited.
I n f o r ma t i o n P r o v i d e d b y :
206
Navigator (TB5) Canada/United States of America, enUSA, First Printing