The coming home light turns on the headlights (low beams) when the lever is operated.
To turn on the lights
When the lever is pulled with the ignition switched to ACC or OFF, the low beam headlights turn on.
The headlights turn off after a certain period of time has elapsed after the doors are closed.

NOTE
Flashing the Headlights
Leaving Home LightMazda 6 Owners Manual: Rearview Mirror
WARNING
Do not stack cargo or objects higher than the seatbacks: Cargo stacked
higher than the seatbacks is dangerous. It can block your view in the rearview mirror,
which might cause you to hit another car when changing lanes.
Rearview mirror adjustment
Before driving, adjust the rearview mi ...
Mazda 6 Owners Manual: Wheel hub, steering knuckle pre-inspection
Wheel Bearing Play Inspection
1. Position a dial indicator against the wheel hub.
2. Push and pull the wheel hub by hand in the axial direction and measure the
wheel bearing play.
Maximum wheel bearing play
0.05 mm {0.002 in}
3. If the bearing play exceeds the specification, replace and tig ...