2019 Toyota Prius problems and complaints
Owners have filed 30 complaints with NHTSA about the 2019 Toyota Prius. The most-reported areas: Service Brakes (11), Unknown Or Other (8), Engine (6).
Key takeaways
- 30 owner complaints on file with NHTSA.
- 7 involve a crash, 0 a fire, 2 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Service Brakes | 11 | 37% |
| Unknown Or Other | 8 | 27% |
| Engine | 6 | 20% |
| Electrical System | 4 | 13% |
| Forward Collision Avoidance | 4 | 13% |
| Vehicle Speed Control | 4 | 13% |
| Air Bags | 4 | 13% |
| Power Train | 2 | 7% |
| Tires | 2 | 7% |
| Lane Departure | 1 | 3% |
| Engine And Engine Cooling | 1 | 3% |
| Fuel/Propulsion System | 1 | 3% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2019 Toyota Prius 5 HB AWD | 5/5 | 4/5 | 5/5 | 4/5 |
| 2019 Toyota Prius 5 HB FWD | 5/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine - filed 2026-08-26
Coolant is leaking into the catalytic converter. This seems to be a common issue. Toyota issued a technical service bulletin on XXX covering this exactly. Some 2016–2019 Prius and 2017–2019 Prius Prime vehicles may exhibit low coolant level, MIL on with DTC P148F00, and/or poor heater performance due to coolant lea...
Electrical System,unknown Or Other - filed 2026-07-13
Frequency when I start car makes a very loud , painful high pitch noise for anywhere from 5-15 seconds
Unknown Or Other - filed 2026-01-06
Body of car has rust perforation starting from the inside working out. This is on the roof, so water incursion will effect airbags and electrical system. FIrst noticed rust bubbles a few years ago, but did not think much of it. Now two body shops have said roof panel needs to be replaced. This is big stuff!
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More for the 2019 Toyota Prius
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.