1. Disconnect the negative battery cable..
2. Remove the front bumper..
3. Remove the horn..
4. Apply battery positive voltage and connect the ground as shown in the figure and verify the horn beeper sound operation.

If the beep sound cannot be verified, replace the horn.
Horn
Horn Removal/InstallationBrake Hold
In the Subaru Solterra, the brake hold system is engineered to maintain
braking force automatically when the vehicle is stopped with the shift position
in D or N and the system is activated. Once the brake pedal is used to bring the
Subaru Solterra to a stop, the system keeps the brakes applie ...
Bluetooth ® Preparation (Type A)
Bluetooth ® Hands-Free Preparation
Pairing code setting
The 4-digit pairing code setting for
registration of your cell phone (pairing)
can be set beforehand.
NOTE
The initial setting value is “0000”.
Press the pick-up button or talk button
with a short press.
Say: [Beep] “Setup ...
My Settings
In the Subaru Solterra, the My Settings function enables personalized
driver recognition using various authentication devices, automatically restoring
individual driving preferences and vehicle configurations upon entry.
By linking a specific device—such as an electronic key—to a registered ...