Reporting intermittent brake failure, where brake sank to the floor on the first press without any effect of slowing the vehicle. Fortunately, in each instance, on the second press the brakes functioned normally and slowed the vehicle, so no accident or injury occurred. The first incident was in May 2022 after driving over a speed bump — at the time I assumed user error and did not report the incident. The brakes failed a second time in March 2025 when descending a hill at 35 mph, and a third time in April 2025 after U-turning on a hill at low speeds. At that time, I opted to tow the car to the dealer for a repair. The dealer found no brake issues on inspection/testing, but after finding another case report recommended replacing the master cylinder. Of note, this is similar to NHTSA recall 23V-458 for other Acura/Honda models from 2019/2020 where there were issues with the master cylinder, but the Acura ILX was not included. There was also a NHTSA Acura Service Bulletin 22-014 from 2022 advising of a search for Acura 2019 ILX vehicles with an intermittent brake issue. I have also attached my correspondence with Acura.