Mazda 3 Owner's Manual page 366

Interior Features
Audio System
Error Indications
If you see an error indication on the
audio display, fi nd the cause in the chart.
If you cannot clear the error indication,
take the vehicle to an expert repairer,
we recommend an Authorised Mazda
Repairer.
Indication Cause
CD is
inserted
upside
down
CHECK
CD
CD is
defective
5–48
Solution
Insert the CD properly.
If the error indication
continues to display,
consult an expert
repairer, we recommend
an Authorised Mazda
Repairer.
Insert another CD
properly. If the error
indication continues
to display, consult
an expert repairer,
we recommend an
Authorised Mazda
Repairer.