The Power Steering Rack Assembly had to be replaced on my vehicle because the sensors that notify the safety systems of the direction the steering wheel is pointing failed while I was driving my son to school. The result of this failure caused a multiple system failure resulting in an inability to steer the car at speed. The Lane Keep Assist system was actively fighting against my driver input as I was driving, effectively locking the steering wheel in a stationary position. This failure not only put my and my son’s life in danger but other drivers on the road as well. This could have very easily caused a severe collision considering the ability to steer a motor vehicle is arguably the most integral part of operating one. The car has decently low mileage for being 7 years old and is well-maintained. This issue occurred suddenly without any prior warning lamps, messages, etc.