Your vehicle is equipped with head restraints on all outboard seats and the rear center seat. The head restraints are intended to help protect you and the passengers from neck injury.
WARNING
Always drive with the head restraints installed when seats are being used and make sure they are properly adjusted.:
Driving with the head restraints adjusted too low or removed is dangerous. With no support behind your head, your neck could be seriously injured in a collision.
Height adjustment
To raise a head restraint, pull it up to the desired position.
To lower the head restraint, press the stopcatch release, then push the head restraint down.
Adjust the head restraint so that the center is even with the top of the passenger's ears.

Front outboard seat

Rear outboard seat

Rear center seat

Removal/Installation
To remove the head restraint, pull it up while pressing the stop-catch.
To install the head restraint, insert the uprights into the holes while pressing the stop-catch.
WARNING
Always drive with the head restraints installed when seats are being used and make sure they are properly installed:
Driving with the head restraints not installed is dangerous. With no support behind your head, your neck could be seriously injured in a collision.
Rear SeatFront Body Control Module (Fbcm) Inspection
1. Remove the fuse box cover..
2. Remove the front body control module (FBCM) from the fuse box..
3. Verify that the voltages of each of the terminals are as indicated in the
Terminal Voltage Table (Reference).
If the voltage is not as indicated in the table, inspect the parts under
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Forced Ignition On
NOTE:
In order to perform a forced ignition ON, the M-MDS is necessary. If the
servicing is being done outside of an Authorized Mazda dealership, contact an
Authorized Mazda dealership for instructions.
The forced ignition ON procedure forces a power supply to each part when
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Antenna Feeder No.3 Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. B-pillar lower trim.
b. Front seat belt adjusting cover.
c. Front seat belt upper anchor installation bolt.
d. B-pillar upper trim.
e. Trunk board.
f. Trunk end trim.
g. Trunk side trim.
h. D-pillar trim. ...