Depress the button on the seat belt buckle.

Fastening the Seat Belt
Seat Belt ExtenderEngine Tune Up [Mzr 2.0, Mzr 2.5]
NOTE:
If the accelerator pedal is depressed continuously for a specified time,
the engine speed may decrease to the idle speed. This is due to the fuel cut
control operation, which prevents overheating, and it does not indicate a malfunction.
Engine Tune-up Preparation
1. Verify ...
Seat belts
Before driving your Subaru Solterra, always confirm that every occupant
is properly secured with a seat belt. Correct usage of seat belts is one of the
most critical safety measures in preventing serious injuries.
WARNING
Carefully follow the precautions below to minimize the risk of injury du ...
Glove Compartment Removal/Installation
CAUTION:
If the glove compartment is closed without being joined to the stay damper,
the stay damper may be damaged. Verify that the stay damper is joined to the
glove compartment before closing the glove compartment.
1. Pull the stay damper in the direction (1) shown in the figu ...