If a message is displayed in the center display, take appropriate action (in a calm manner) according to the displayed message.

KEY Warning Light (Some models)
Stop Vehicle in Safe Place ImmediatelyMazda 6 Owners Manual: Front/rear abs wheel-speed sensor inspection
Visual Inspection
Remove the wheel and tire, and inspect the sensor for looseness and damage.
Replace the sensor if necessary.
Clearance Inspection
Inspect the clearance between the wheel-speed sensor and the sensor rotor.
Clearance
0.3-1.1 mm {0.012-0.043 in}
Resistance Inspection
...
Mazda 6 Owners Manual: Recording of Vehicle Data
This vehicle is equipped with a computer which records the following main vehicle
data related to vehicle controls, operation, and other driving conditions.
Recorded data
Vehicle conditions such as engine speed and vehicle speed
Driving operation conditions such as accelerator and brake ped ...