Mazda CX-5 2021 Owner's Manual page 392

When Driving
i-ACTIVSENSE
Rear camera
(Screen display)
(Actual condition)
▼ System Problem Indication
Center display indication
"No camera signal." is displayed
Screen is pitch-black and blank
4-236
Sensed distance on screen A > B > C
Actual distance B > C = A
Cause
The control unit might be damaged.
The camera might be damaged.
Action to be taken
Have your vehicle inspected
by an Authorized Mazda
Dealer.