Mazda 6 Service Manual: No.25 a/c is not cut off under wide open throttle conditions

No.24 a/c is always on or a/c compressor runs continuously

No.26 exhaust sulphur smell

Other materials:

Mazda 6 Service Manual: Smart City Brake Support (SCBS)
The Smart City Brake Support (SCBS) system alerts the driver of a possible collision using an indication in the display and a warning sound when the Forward Sensing Camera (FSC) detects a vehicle ahead and determines that a collision with a vehicle ahead is unavoidable while the vehicle is bei ...

Mazda 6 Service Manual: To Turn Off an Armed System
An armed system can be turned off using any one of the following methods: Pressing the unlock button on the transmitter. Starting the engine with the push button start. (With the advanced keyless function) Pressing a request switch on the doors. The hazard warning lights will flash twic ...