1. Disconnect the negative battery cable..
2. Remove the sunvisor..
3. Verify that the continuity between the vanity mirror illumination terminals is as indicated in the table.

If not as indicated in the table, inspect the bulb. If there is no malfunction, replace the sunvisor.

Vanity Mirror Illumination Bulb Removal/Installation
Power Outer Mirror Switch InspectionRear seats
In the Subaru Solterra, rear seatbacks can be reclined or folded
using simple lever operations, providing flexibility for passenger comfort and cargo
space expansion.
Adjustment procedure
Pull the seatback angle adjustment lever A to adjust the angle of the Subaru
Solterra rear seatback.
...
Heated steering wheel/seat heaters/seat ventilators/ radiant heaters
Heated steering wheel
In the Subaru Solterra, the heated steering wheel gently warms the grip area,
enhancing driver comfort during cold weather and improving overall driving experience.
Seat heaters
The seat heaters in the Subaru Solterra provide efficient warmth to the seat
surfac ...
No.2 Car Navigation System Does Not Operation [Car Navigation System]
2
Even if the map screen is touched, the car-navigation system cannot be
operated
Possible DTC
—
POSSIBLE CAUSE
Audio unit malfunction (bad LCD panel)
Car-navigation unit malfunct ...