NHTSA Complaint #11489410 — 2015 LEXUS ES HYBRID

I had new brakes put on my car and a few months later, while I was driving, the brakes completely stopped working. There was no warning and I ended up going through a red light because I couldn't stop. I was lucky to be in a residential area where I could pull over to the side and be towed to the brake shop. They checked it out, and said there was a code that showed a Lexus issue. We took it to the Lexus service at Woodland Hills Lexus. They drove it and nothing happened, but finally with a lot of nagging on my part, they did a diagnostic (charging me $486.74 for this) and found a problem. Based on what my service person told me, there was a letter sent out to Lexus dealerships saying this was a problem, but they weren't doing a recall. How can they be allowed to ignore a brake problem ? I would like to buy another Lexus (I have already had 3), but I am concerned they are not forthcoming about safety issues. I have emailed their headquarters regarding this, but have not heard back.