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 AdjusterAir Intake Actuator Removal/Installation [Full Auto Air Conditioner]
1. Set the air intake mode to FRESH.
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Front scuff plate (Passenger-side).
b. Front side trim (Passenger-side).
c. Dashboard under cover.
d. Glove compartment.
e. Lower panel (Passenger-side).
f. Shower duct ( ...
B Pillar Upper Trim Removal/Installation
1. Remove the following parts:
a. Adjuster anchor cover.
b. Upper anchor installation bolts on the front seat belt.
c. Front scuff plate.
d. Rear scuff plate.
2. Partially peel back the seaming welt.
3. Remove the B-pillar lower trim..
4. Grasp the lower end of the B-pillar upper trim, ...
Locking and unlocking AC charging connector
When the AC charging connector is properly inserted into the charging
inlet of the Subaru Solterra, it is automatically secured in place to prevent accidental
disconnection during the charging process. This locking mechanism ensures a stable
and safe connection while charging is in progress.
...