Replacing Lens Component

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the active driving display. (See ACTIVE DRIVING DISPLAY REMOVAL/INSTALLATION .)
Remove the active driving display short-cord. (See ACTIVE DRIVING DISPLAY SHORT-CORD REMOVAL/INSTALLATION .)
Remove the screws.

Fig 1: Active Driving Display And Screws
Courtesy of MAZDA MOTORS CORP.
Move the lens component in the direction of the arrow shown in the figure below.

Fig 2: Moving Lens Component
Courtesy of MAZDA MOTORS CORP.
Remove the screw.

Fig 3: Photo Sensor, Lens Component And Screw
Courtesy of MAZDA MOTORS CORP.
Pull out the photo sensor wiring harnesses from the hooks.

Fig 4: Photo Sensor, Lens Component, Photo Sensor Wiring Harness And Hook
Courtesy of MAZDA MOTORS CORP.
Remove the photo sensor.
Install in the reverse order of removal.