Power Steering
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
Refer to STEERING SYSTEM - ELECTRONIC POWER ASSIST STEERING (EPAS) article or STEERING SYSTEM - HYDRAULIC POWER ASSIST STEERING (HPAS) article.