On certain vehicles, a defect in the steering gear assembly could cause it to leak power steering fluid. If this happens, there could be a loss of power steering assist.
Safety Risk
A loss of power steering assist may result in a sudden increase in steering effort, especially at low speeds. This could increase the risk of a crash.
Corrective Actions
Toyota will notify owners by mail and instruct you to take your vehicle to a dealer to inspect, and if necessary, replace power steering gear assembly.