Interior Features; Audio System; ALC (Automatic volume adjustment)- Page 289

5–27

Interior Features

Audio System

*

Some models.

NOTE

If not operated for several seconds, the 

display returns to the previous display. To 

reset bass, treble, fade, and balance, press 

the menu button (

) for 2 seconds. 

The unit will beep and “CLEAR” will be 

displayed.

ALC (Automatic volume adjustment)

The automatic level control (ALC) 

changes the audio volume automatically 

according to the vehicle speed. The faster 

the vehicle speed, the higher the volume 

increases. ALC has ALC OFF and ALC 

LEVEL 1 to 7 modes. At ALC LEVEL 7, 

the amount that the volume can increase 

is at the maximum. Select the mode 

according to the driving conditions.

BEEP (Audio operation sound)

The setting for the operation sound when 

pressing and holding a button can be 

changed. The initial setting is ON. Set to 

OFF to mute the operation sound.

BT SETUP mode

*

Music and other audio such as voice data 

recorded on portable audio devices and 

mobile phones available on the market 

which are equipped with the Bluetooth

®

transmission function can be listened to 

via wireless transmission over the vehicle's 

speakers. Using the BT SETUP mode, 

these devices can be programmed to the 

Bluetooth

®

 unit or changed (page 5-80).

12Hr   24Hr (12 Hr/24 Hr time 

adjustment)

Rotating the audio control dial switches 

the display between 12 and 24-hour clock 

time (page 5-28).

Mazda3_8FA4-EA-15G_Edition1.indb   27

2015/05/11   14:01:26