Years ago the NHTSA investigated the Toyota Prius over potential issues with its brake actuator solenoid. It closed that initial investigation when the petitioner withdrew the complaint. Now, a second petitioner has come forward with a similar issue and they claim that their Prius lost braking power.
That initial complaint came in mid-2019 and the petitioner highlighted 117 NHTSA complaints. They said that the brake actuator solenoid valve had a wear issue that would result in reduced brake effectiveness. In fact, Toyota recalled a number of vehicles with similar issues before 2019. The petition intended to simply add the Prius to the batch. For unknown reasons, the initial petitioner withdrew their petition.
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