When you need a sunvisor, lower it for use in front or swing it to the side.

Side Extension Sunvisors (Some models)
The visor extender extends the sunvisor's range of sun shading.
To use, pull it out.

CAUTION
When moving the sunvisor, retract the visor extender to its original position. Otherwise, the visor extender could hit the rearview mirror.
Vanity MirrorsMazda 6 Owners Manual: Theft-deterrent control module inspection
1. Remove the theft-deterrent control module without disconnecting the
connectors.
2. Measure the voltage at the theft-deterrent control module terminals as
indicated below.
3. Disconnect the theft-deterrent control module connector before inspecting
for continuity at terminals L, Q, S, T, a ...
Mazda 6 Owners Manual: Replacing Interior Light Bulbs
Overhead lights/Front map lights (LED type), Rear map lights (LED type)
The LED bulb cannot be replaced as a single unit because it is an integrated
unit. The LED bulb has to be replaced with the unit. We recommend an Authorized
Mazda Dealer when the replacement is necessary.
Overhead lights/F ...