Depress the button on the seat belt buckle.
If the belt does not fully retract, pull it out and check for kinks or twists. Then make sure it remains untwisted as it retracts.

NOTE If a belt does not fully retract, inspect it for kinks and twists. If it is still not retracting properly, have it inspected at an Authorized Mazda Dealer.
Fastening the Seat Belt
Front Shoulder Belt AdjusterInitial Learning [Fw6 A EL]
Introduction
If the control valve body and oil pressure switch are replaced, always perform
the initial learning. If the initial learning is not completed, engine rev-up
may occur or shift shock may increase. DTC P06B8:00 is displayed while the initial
learning has not been implement ...
Ignition Switch Inspection [Without Advanced Keyless Entry And Push Button Start
System]
1. Disconnect the negative battery cable..
2. Remove the column cover..
3. Remove the ignition switch..
4. Verify that the continuity between the ignition switch terminals is as indicated
in the table.
If not as indicated in the table, replace the ignition switch.
...
Caliper (Front) Disassembly/Assembly [Mzr 2.3 Disi Turbo]
1. Disassemble in the order indicated in the table.
1
Bleeder cap
2
Bleeder screw
3
Piston
(See Piston Disassembly Note.)
(See Piston Assembly Note.)
4
Dust seal
(See Dust Seal ...