Mazda MX-30 2022 Owner's Manual Leaflet page 335

These lines indicate the approximate distance to a point measured from the
vehicle's rear (from the end of the bumper).
The blue line indicates the point about 0.5 m (19 in) from the rear bumper.
The red and yellow lines, which change position after you turn the steering wheel,
indicate the points about 0.5 m (19 in) for the red line and 1.0 m (39 in) and 2.0
m (78 in) for the yellow lines from the rear bumper (at the center point of each of
the lines).
A degree of error occurs when the wheels are not in the straight-ahead position.
In the above illustration, the right side of the vehicle is in a position closer to the
actual distance displayed by the distance guide lines (red: about 0.5 m (19 in)
point, yellow: about 1.0 m (39 in), and yellow: about 2.0 m (78 in) point behind
the rear bumper), whereas the left side is in a position farther away.
CAUTION
The indicated position of the guide lines on the display changes depending on the
vehicle conditions (such as the number of occupants/cargo load) and the road
conditions (such as a steep gradient to the rear of the vehicle).
Always check the area to the vehicle's rear and the surrounding area directly with
your eyes while backing up.
Fixed assist lines display type
Guide lines which indicate the width of the vehicle are displayed on the screen as a
reference to the approximate width of the vehicle in comparison to the width of the
parking space you are about to back into.
Use this display view for parking your vehicle in a parking space or garage.
a) Vehicle width guide lines
Guide lines serve as a reference to the approximate width of the vehicle.
b) Distance guide lines
These guide lines indicate the approximate distance to a point measured from the
vehicle's rear (from the end of the bumper).
The red line indicates the point about 0.5 m (19 in) from the rear bumper.
The yellow lines indicate the points about 1.0 m (39 in) and 2.0 m (78 in) from
the rear bumper.
Rear View Monitor
When Driving
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