Rearview Mirror Replacement

Turn the rearview mirror base (A) 90°.

Fig 1: Turning Rearview Mirror Base 90°
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Slide the rearview mirror (A) down toward the bottom of the windshield to detach it from the spring (B) in the mount (C).

Fig 2: Sliding Rearview Mirror Down Toward Bottom Of Windshield
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If necessary, remove the spring from the mount.
Install the rearview mirror in the reverse order of removal.