On certain vehicles, the lower control arm ball joint to steering knuckle attaching nut may not have been torqued to specifications. This condition could cause the nut to back off, resulting in joint separation.
The dealer will perform a torque check of the attaching nut, and, if necessary, tighten it. In some cases an inadequate torque level may have caused ball stud or steering knuckle damage; if so, the affected components will be replaced at no charge to owner.