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 AdjusterRear Center Speaker Inspection
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear seat cushion.
b. Rear scuff plate.
c. Tire house trim.
d. C-pillar trim.
e. Rear package trim.
f. Rear center speaker.
3. Verify the resistance between the rear center speaker terminals.
If ...
Clock Spring Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the driver-side air bag module..
3. Remove the steering wheel..
4. Remove the column cover.
5. Remove the connectors.
6. Remove the tab direction of the arrow shown in the figure.
7. Remove the screws.
8. Remove the clock spring. ...
Purge Solenoid Valve Removal/Installation [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove in the order indicated in the table.
1
Purge solenoid valve connector
2
Evaporative hose
(See Evaporative Hose Installation Note.)
3
...