The official notice
Defect
On certain vehicles that have had one (or both) of the rear wheel knuckle(s) replaced, the outer ball joint for the rear suspension toe link may seize. If this happens, the toe link could break while driving. This could cause a sudden loss of vehicle stability. Note: This recall only affects vehicles equipped with a rear ball joint manufactured by ZF.
Safety Risk
A loss of vehicle stability could cause a loss of control and increase the risk of a crash.
Remedy
Ford will notify owners by mail and instruct you to take your vehicle to a dealer to inspect if it has had ball joints installed to replace the original bushings in the rear suspension. If so, the ball joints will be inspected. If a ball joint requires replacement, the dealer will replace the rear suspension knuckle and toe link, as necessary.