1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear seat cushion.
b. Rear scuff plate.
c. Tire house trim.
d. C-pillar trim.
e. Rear package trim.
f. Rear center speaker.
3. Verify the resistance between the rear center speaker terminals.

If not within the specification, replace the rear center speaker.

0.9—1.1 ohms
Keyless Antenna Removal/Installation
Rear Center Speaker Removal/InstallationScheduled Maintenance (U.S.A., Canada, and Puerto Rico)
Follow Schedule 1 if the vehicle is operated mainly where none of the
following conditions
(severe driving conditions)apply.
Repeated short-distance driving
Driving in dusty conditions
Driving with extended use of brakes
Driving in areas where salt or other corrosive materials are used
...
Vanity Mirror Illumination Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped fastener remover into the service hole, and pry it in
the direction indicated by the arrow to remove the lens.
3. Remove the vanity mirror illumination bulb.
4. Install in the reverse order of removal. ...
LCA (Lane Change Assist)
LCA functions
In the Subaru Solterra, the Lane Change Assist (LCA) system works in conjunction
with Lane Tracing Assist (LTA) to support smoother and more controlled lane changes.
By applying subtle steering inputs, the Subaru Solterra helps guide the vehicle
into the adjacent lane when condi ...