Are there any known issues with the Prius braking system?

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Are there any known issues with the Prius braking system?

Some Prius models, particularly 2010-2015 3rd generation, have experienced problems with brake actuator failure and inconsistent regenerative braking. Discussing these issues and potential fixes can help owners maintain braking performance.

Lubaba asked on 13 Feb 2025 10:46:25 am

1 Answer

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Car Mechanic Expert - on 13 Feb 2025 10:58:05 am

The braking system in older Toyota Prius models 2010–2015 has been a known issue for some owners. Specific concerns include:

Brake Actuator Failure: This can lead to a loss of braking performance o r “spongy” brake feel. It can cause inconsistent braking, especially in wet o r slippery conditions.
Regenerative Braking Issues: Some Prius owners report inconsistent braking o r a delay in regenerative braking engagement, especially in models with high mileage. This can result in an unsafe braking response in emergency situations.

Fixes:

Regularly inspect the brake system, especially the actuator and brake fluid.
In some cases, a software update o r complete brake actuator replacement may be necessary.