At a glance
What can fail
The castellated nut on the steer axle may not be properly tightened, which can allow the tie rod to loosen and affect steering control.
What the fix does
Dealers will check and tighten the castellated nut and tie rod. If the parts cannot be sufficiently tightened, the knuckle and tie rod end assembly will be replaced at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.