TSB: Some 2014 ? 2018 model year IS350, 2016 ? 2017 model year IS200t, and 2018 model year 2WD F Sport vehicles with 17-in. rotors may exhibit a squeal/squeak noise from the front brake pads. This condition may be present at city, highway, and/or parking lot speeds. For customers who find this characteristic objectionable, an updated front brake pad kit and shim kit are available.