4SD
1. Disconnect the negative battery cable..
2. Disconnect the antenna amplifier connector B..
3. Disconnect the antenna feeder No.3 connector C. (with audio unit (with display)).
4. Inspect the glass antenna for damage visually.
5. Inspect for continuity between the glass antenna terminals using an ohmmeter.

If not as specified, repair the glass antenna..

5HB (with audio unit (with display))
1. Disconnect the negative battery cable..
2. Remove the liftgate upper trim..
3. Disconnect the antenna feeder No.7 connector B..
4. Inspect the glass antenna for damage visually.
5. Inspect for continuity between the glass antenna terminals using an ohmmeter.

If not as specified, repair the glass antenna..

Glass Antenna
Installation Of Radio SystemActive Driving Display
WARNING
Always adjust the display brightness and position with the vehicle
stopped:
Adjusting the display brightness and position while driving the vehicle
is dangerous as
doing so could distract your attention from the road ahead and lead to
an accident.
...
Driving position memory
In the Subaru Solterra, the driving position memory system intelligently
adjusts the driver’s seat and outside rear view mirrors to match personal preferences,
while also simplifying entry and exit from the vehicle.
The Subaru Solterra allows you to store your preferred driving position, in ...
Bass Box Inspection
1. Disconnect the negative battery cable..
2. Disconnect the connector..
3. Verify the resistance between bass-box terminals.
If not within the specification, replace the bass-box.
Resistance
0.9—1.1 ohms
...