The Smart Brake Support (SBS) system can be temporarily deactivated.
When the Smart Brake Support (SBS) system is turned off, the Smart Brake Support (SBS) OFF indicator light turns on.

When the engine is restarted, the system becomes operational.
NOTE
If the Smart Brake Support (SBS) system operation is turned off, the Smart City Brake Support (SCBS) system operation is turned off simultaneously.
Collision Warning
Forward Sensing Camera (FSC) (Some models)Mazda 6 Owners Manual: Component Parts
Microphone (hands-free)
The microphone is used for speaking voice commands or when making a Hands-free
call.
Talk button, Pick-Up button and Hang-Up button (hands-free)
The basic functions of Bluetooth® Hands-Free can be used for such things as making
calls or hanging up using the talk, pi ...
Mazda 6 Owners Manual: Multiplex communication system
Outline
In case the controller area network (CAN) system is malfunctioning, read
the DTCs of the following modules, using the SST (WDS or equivalent) to
determine the malfunctioning system.
- PCM
- DSC HU/CM (with DSC)
- ABS (ABS/TCS) HU/CM (with ABS (ABS/TCS)
- Instrument clus ...