Upper Outer Mirror Garnish

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 outer mirror glass. (See OUTER MIRROR GLASS REMOVAL .) (See OUTER MIRROR GLASS INSTALLATION .)
Insert a tape-wrapped flathead screwdriver into the upper outer mirror garnish and remove tabs A and tab B in the direction of arrow (1).

Fig 1: Removing Upper Outer Mirror Tabs
Courtesy of MAZDA MOTORS CORP.
Insert a tape-wrapped flathead screwdriver into the upper outer mirror garnish and remove tab B in the direction of arrow (2).

Fig 2: Removing Upper Outer Mirror Garnish Tabs
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.