One problem related to power steering light on has been reported for the 2019 Ford F-250. The most recently reported issues are listed below.
Steering has been slightly shaky over bumps at normal highway speed. Recently truck has began death wobble (steering oscillation) when hitting potholes, bridge joints, and road construction transitions. Today in traffic at 50-55 mph, it was severe enough that it almost caused an accident. High traffic area and braking was slow due to traction loss during oscillation.