Model Y monitors the markers on the lane you are
driving in as well as the surrounding areas for the
presence of vehicles or other objects.
When an object is detected in your blind spot or near
the side of Model Y (such as a vehicle, guard rail, etc.),
the instrument panel displays colored line
To help ensure an occupant in the front passenger seat
can be accurately classified, the passenger must:
Wear a seat belt.
Sit upright on the center of the seat cushion, with shoulders resting
against the seat back and legs extended comfortably in front with feet on
the floor.
See Examples