Mazda MX-30 2020 Owner's Manual page 148

Auto-dimming mirror
The auto-dimming mirror
automatically reduces the glare of
headlights from vehicles at the rear
when the power switch is switched
ON.
NOTE
Do not use glass cleaner or suspend
objects on or around the light
sensor. Otherwise, light sensor
sensitivity will be affected and may
not operate normally.
1. Light sensor
The auto-dimming function is
cancelled when the power switch is
switched ON and the selector lever is
in the R position.
Before Driving
Mirrors
3-55