Subaru WRX & WRX STI Manuals 2017 WRX & WRX STI Owner’s Manual | Page 447

7-72 Starting and operating/Reverse Automatic Braking 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.