Adjusting rearview mirror dimming
Manual dimming
The interior rearview mirror can be dimmed with a control in the mirror's lower edge.
![P5-1507 Interior rear view mirror](https://www.volvocars.com/images/support/img55111f61654d27d2c0a8015271be51f9_1_--_--_VOICEpnghigh.png?imwidth=1280)
Control for manual dimming.
The control for manual dimming is not available on mirrors with automatic dimming.
Automatic dimming*
If bright light comes from behind, the rearview mirrors automatically dim when it is dark outside or when the light is limited, for example when driving in tunnels. Automatic dimming is always active while driving, apart from when gearbox reverse position is selected.
Note
![iCup-2037-Settings symbol](https://www.volvocars.com/images/support/imgf1c5d0bf5cacf617c0a801521667c9fa_2_--_--_VOICEpnghigh.png?imwidth=1280)
The interior rearview mirror contains two sensors - one forward facing and one rearward facing - that work together to identify and eliminate dazzling light. The forward facing sensor detects ambient light, while the rearward facing sensor detects the light from vehicle headlights behind.
For the door mirrors to be equipped with automatic dimming, the interior rearview mirror must also be equipped with automatic dimming.