2015 LEXUS IS

The steering system on my Lexus IS 350 F Sport malfunctioned while driving at high speeds on the highway. Specifically, the steering wheel locked up and would not allow me to turn, which made it extremely difficult and dangerous to control the vehicle. The car is available for inspection upon request. My safety and the safety of others on the highway were seriously endangered. When the steering locked up, I was unable to make necessary lane changes or navigate slight curves. I had to reduce my speed significantly and move into the shoulder lane as safely as possible. If I had needed to avoid an obstacle or make a quick turn, I would not have been able to. At this time, the issue has not yet been reproduced or officially confirmed by a dealer or mechanic, but I plan to bring it in for a diagnostic inspection. The problem occurred unexpectedly and without warning at high speeds, making it difficult to replicate in controlled conditions. I am currently arranging for the vehicle to be inspected by a Lexus-certified service center and will allow access to the vehicle for further investigation by the manufacturer or any other relevant party. There were no warning lights, error messages, or unusual noises prior to the steering failure. My friend owns an ES 250 and had the same issue a few years ago but was able to get it fixed via recall on his vehicle. My problem happened suddenly while driving at high speeds and was not preceded by any noticeable signs.