In total, approximately 760,000 RAV4s are impacted while only 18,000 HS 250h vehicles are affected. The issue arises when the nuts on the rear suspension arm is not tightened following the proper procedure and torque specification during a rear wheel alignment service. If that has occurred, excess play could result on the threaded portion of the arm causing rust to form. As a result, the rear suspension arm may have excess wear and can even separate under certain conditions.
The Japanese automaker is currently developing a fix and will be contacting owners so that they can have their vehicle remedied for no charge.