1. Disconnect the brake fluid level sensor connector from the master cylinder.
2. Inspect for continuity according to fluid level between the brake fluid level sensor terminals.

If not as indicated in the table, replace the reserve tank.

Brake Switch InspectionSide doors
In the Subaru Solterra, the side doors can be securely locked and
unlocked through multiple convenient methods, including the smart entry system,
wireless remote control, door lock switches, and interior lock buttons, ensuring
flexibility and ease of access in any situation.
Unlocking and loc ...
LTA (Lane Tracing Assist)
LTA functions
In the Subaru Solterra, when driving on roads with clearly visible lane
markings and with dynamic radar cruise control activated, the system uses a
front camera and radar sensors to detect lane boundaries as well as surrounding
and preceding vehicles. Based on this data, t ...
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 ...