1. Disconnect the negative battery cable..
2. Remove the rear combination light..
3. Remove the rear bumper..
4. Remove the nuts and remove the rear bumper reinforcement.

5. Install in the reverse order of removal.
Rear Bumper Disassembly/Assembly
Rear Bumper Removal/InstallationLCA (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 ...
Operational Range
WARNING
Always take all children and pets with
you or leave a responsible person with
them:
Leaving a child or a pet unattended in
a parked vehicle is dangerous. In hot
weather, temperatures inside a vehicle
can become high enough to cause
brain damage or even death.
...
BSM OFF Switch
When the BSM OFF switch is pressed, the
Blind Spot Monitoring (BSM) and Rear
Cross Traffic Alert (RCTA) systems are
turned off and the BSM OFF Indicator
Light in the instrument cluster turns on.
If the switch is pressed again, the Blind
Spot Monitoring (BSM) and Rear Cross
Traffic Alert ...