Honda Civic Owners Manual: Interior Rearview Mirror

Adjusting the Mirrors

...

Rearview Mirror with Day and Night Positions

Flip the tab to switch the position. The night position will help to reduce the glare from headlights behind you when driving after dark. Keep the inside and outside mirrors clean and adjus ...

See also:

Honda Civic Owners Manual. Side Curtain Airbags
The side curtain airbags help protect the heads of the driver and passengers in the outer seating positions during a moderate-to-severe side impact. The side curtain airbags equipped in this vehicle are also designed to help reduce the likelihood of partial and complete ejection of vehicle ...