NHTSA Complaint #11556849 — 2017 PORSCHE MACAN

While driving east on I-40 in North Carolina, my power steering catastrophically failed and I had to use all of my arm strength to steer the vehicle. The section of I-40 where this event occurred is extremely curvy (near the Haywood Rest Area) and there is no margin for error. If I had not been alone and totally concentrating on my driving, I could envision a severe accident as there were cars all around me. I managed to drive the vehicle to my Porsche dealer in Columbia, SC for repairs. They found multiple faults for the steering torque sensors and determined that the electric steering rack was faulty. They replaced the steering rack. Prior to this event, I had complained to the Porsche dealer about rubbing noises in the steering. The dealer replaced the steering shaft but the noise came back.