Mirrors
Interior Rearview Mirror
Adjust the inside rearview mirror so that the center view through the rear window is visible. Make this adjustment before driving.
Do not place items on the rear seat that may obstruct your view through the rear window.
WARNING - Mirror Adjustment
Do not adjust the rearview mirror while driving. This may result in loss of vehicle control.
WARNING
Do not modify the inside rearview mirror in any way, including installing a wider mirror. This may result in injury in an accident or in the deployment of the airbag.
Day/Night Rearview Mirror

Make this adjustment before driving, and while the day/night lever is in the day position (1).
Pull the day/night lever toward you (2) to reduce glare from the headlights of vehicles behind you during night driving.
Be aware that rear view clarity is reduced in the night position.
❈ (1): Day, (2): Night
Test yourself
A quick Kia Rio YB quiz: every answer comes with an explanation and a link to the manual page.