Lexus USA has announced a safety recall of certain 2013-2015 model year ES 350 and ES 300h sedans due to an issue with the Pre-Collision System — from the press release:
In the involved vehicles, under certain situations, the PCS (Pre-Collision System) could interpret a steel joint or plate in the roadway as an object that triggers PCS activation. If this occurs, the PCS warning buzzer sounds and the system may apply the service brake automatically. Unexpected braking could increase the risk of a crash.
For all involved vehicles, the PCS function will be disabled as an interim remedy. As the permanent remedy, Toyota dealers will replace PCS components with improved ones.
For more information and to find out if your ES is affected, you can visit the recall and safety information website.