More than 550,000 vehicles affected by bolts that can corrode and cause a loss of power steering. Z
MAY 14, 2018 — Bosch is recalling nearly 558,000 electric power steering systems with aluminum mounting bolts that can corrode and break, allowing the steering gears to detach and causing the vehicles to lose power steering.
Bosch says the aluminum bolts are especially susceptible to corrosion in states where road salt is routinely used in the winter months.
The aluminum mounting bolts attach the electric motors to the housings of the electric power steering systems. Bosch says it decided to order the recall based on recalls from two automakers.
In April 2015, Ford issued a recall of 2013-2015 Ford Fusion, Lincoln MKZ and 2015 Ford Edge vehicles due to the aluminum bolts. Ford vehicles in areas where road salt was used had the power steering mounting bolts replaced, while vehicles in other areas received extended warranties to cover future repair.
http://m.carcomplaints.com/news/2018/bosch-power-steering-bolts-recall.shtml