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 AdjusterSteering Wheel And Column Removal/Installation [With Advanced Keyless Entry
And Push Button Start System]
WARNING:
Handling the air bag module improperly can accidentally operate (deploy)
the air bag module, which may seriously injure you. Read the service warnings
before handling the air bag module..
1. Remove the driver-side front scuff plate..
2. Remove the driver-side front sid ...
Climate Control Unit Inspection [Full Auto Air Conditioner]
1. Remove the climate control unit with the connector connected..
2. Switch the ignition to ON.
3. Connect the negative (-) lead of the tester to body ground.
4. By inserting the positive (+) lead of the tester into each climate control
unit terminal, measure the voltage according to the ter ...
Blind Spot Monitoring (BSM) Warning Lights/Blind Spot Monitoring (BSM)
Warning Beep
The Blind Spot Monitoring (BSM) or Rear Cross Traffic Alert (RCTA) system
notifies the
driver of the presence of vehicles in adjacent lanes to the rear of your vehicle
using the
Blind Spot Monitoring (BSM) warning lights and the warning beep while the
systems are
operational.
Blind Spot Mo ...