2004 Toyota Prius service brakes problems
21 owner complaints filed with NHTSA name the service brakes on the 2004 Toyota Prius — 3% of all complaints for this model year.
What owners report
“Toyota has issued time-limited 'Warranty enhancement program ZG1' instead of working with the NHSTA to issue a comprehensive BRAKE ACTUATOR ASSEMBLY RECALL. ZG1 was explicitly in place only from April 2016 to Dec 2017, requiring dealer verification of an actual system failure prior to 31 Dec 2017…”
filed Nov 27, 2021
“Brake actuator went out and dealer said toyota used to cover it, but not anymore. I searched the internet and discovered this [part is bad in most prius vehicles and toyota extended the coverage on the 2010-2015 until august 31, 2021. Unfortunately my car is 2004 and does not get the benefit of the…”
filed May 12, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Service Brakes problems in other Prius years
| Year | Reports | Share |
|---|---|---|
| 2024 Prius | 2 | 9% |
| 2022 Prius | 4 | 17% |
| 2019 Prius | 9 | 31% |
| 2018 Prius | 3 | 9% |
| 2017 Prius | 14 | 15% |
| 2016 Prius | 18 | 12% |
| 2015 Prius | 84 | 52% |
| 2014 Prius | 91 | 44% |
| 2013 Prius | 225 | 56% |
| 2012 Prius | 182 | 43% |
| 2011 Prius | 260 | 50% |
| 2010 Prius | 591 | 21% |
Other reported problem areas on the 2004 Toyota Prius
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.