With Smart City Brake Support (SCBS)

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the cover. (See RAIN SENSOR REMOVAL/INSTALLATION .)
Disconnect the auto-dimming mirror connector.

Fig 1: Identifying Auto-Dimming Mirror Connector
Courtesy of MAZDA MOTORS CORP.
Remove the screw A.

Fig 2: Identifying Auto-Dimming Mirror Screw
Courtesy of MAZDA MOTORS CORP.
Remove the auto-dimming mirror in the direction of arrow (1) shown in the figure.

Fig 3: Removing Auto-Dimming Mirror
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.