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 AdjusterOil Pump Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Rear Bumper Removal/Installation
4SD
1. Disconnect the negative battery cable..
2. Remove the rear combination light..
3. Remove the fastener A and screw B.
4. Remove the rear splash shield..
5. Remove the screws C.
6. Remove the bolts D.
7. Affix the protective tape to the position shown in the figure.
...
Adaptive Front Lighting System
(AFS)
The adaptive front lighting system (AFS)
automatically adjusts the headlight beams
to the left or right in conjunction with the
operation of the steering wheel after the
headlights have been turned on.
AFS OFF Indicator Light
When illuminated
This indicator light illuminates briefly
when ...