Mazda 3 Sedan 2020 Owner's Manual page 202

When Driving
Switches and Controls
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7 When the light switch is switched to a different position from the AUTO position while the vehicle is
stopped, the daytime running lights turn off. When starting to drive the vehicle, the daytime running
lights turn on again.
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8 If one of the following operations is done from the
daytime running lights turn off.
Switch the light switch to the OFF position.

Switch the light switch to the AUTO position, and then to the

Switch the light switch to the

When starting to drive the vehicle, the daytime running lights turn on again.
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9 When the ignition is switched from ON to ACC or OFF, the headlights remain on if the auto headlight
off function has been canceled. If the auto headlight off function is enabled, the lights turn on for the
set period using the auto headlight off function, and then they turn off.
Auto-light control
When the headlight switch is in the AUTO position and the ignition is switched ON,
the light sensor senses the surrounding lightness or darkness and automatically turns
the headlights and other exterior lights on or off.
CAUTION
Do not shade the light sensor by adhering a sticker or a label on the windshield.
Otherwise the light sensor will not operate correctly.
The light sensor also works as a rain sensor for the auto-wiper control. Keep hands
and scrapers clear of the windshield when the wiper lever is in the AUTO position
and the ignition is switched ON as fingers could be pinched or the wipers and
wiper blades could be damaged when the wipers activate automatically. If you are
going to clean the windshield, be sure the wipers are turned off completely when
it is particularly tempting to leave the engine running. This is particularly important
when clearing ice and snow.
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position while the vehicle is stopped, the
position.
position again.