Climate control information is displayed on the display.

Dehumidifying (With air conditioner)
Control SwitchesMazda 6 Owners Manual: Interior
Front
Rear
...
Mazda 6 Owners Manual: Instrument cluster repair
Note
The needle of speedometer or tachometer may continue to rotate
clockwise until it indicates over maximum graduation. If a customer
complains of this concern, repair the needle position according to the
following steps.
1. Verify the concern.
2. Turn the ignition switch to LOC ...