TSB: Some 2017 ? 2018 model year iA, 2016 ? 2020 Yaris Sedan Mexico-produced, and 2020 Yaris Hatchback Mexico-produced vehicles may exhibit a squeal/squeak noise from the rear during brake application. The cause of this condition is an insufficient amount of grease on the mounting points and backing plates of the rear brake assemblies. Follow the Repair Procedure in this bulletin to address this condition.
