Subaru Legacy BN/BS (2015-2019) Owners Manual: Handling of the sonar sensors

The 4 sonar sensors are located in the rear bumper. To ensure the proper operation of the Reverse Automatic Braking system, observe the following precautions.

• Do not affix any stickers or other items on the bumper surface near the sonar sensors.
•  Always keep the rear bumper surface near the sonar sensors clean.
•  Do not modify the rear bumper.
•  Do not paint the bumper near the sonar sensors.
•  Do not apply strong impacts to the rear bumper near the sonar sensors. If a sensor becomes misaligned, a system malfunction may occur, including inability to detect objects in the reversing direction.

  If any strong impact is applied to the rear bumper, contact a SUBARU dealer to have the system inspected.

•  Do not disassemble the sonar sensors

NOTE If the sonar sensors require repair or replacement, or if the area of the rear bumper near the sonar sensors requires repair, paintwork or replacement, contact your SUBARU dealer for assistance.