2017 Toyota Prius fuel/propulsion system problems
12 owner complaints filed with NHTSA name the fuel/propulsion system on the 2017 Toyota Prius — 13% of all complaints for this model year.
What owners report
“The catalytic converter heat exchanger failed internally, causing coolant to leak into the exhaust system. Symptoms included white smoke from exhaust and coolant loss with no visible ground leak. This is a documented factory defect per Toyota Technical Service Bulletin T-SB-0135-19 affecting…”
filed May 19, 2026
“During hot temperatures and after coming to a full stop, the car stalls/hesitates significantly (5-6seconds) when pushing the gas pedal. The car eventually proceeds but the issue reoccurs. It can only be intermittently reproduced and no codes are shown on the car dashboard. Mechanics are unable to…”
filed Jul 18, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Prius years
| Year | Reports | Share |
|---|---|---|
| 2019 Prius | 1 | 3% |
| 2018 Prius | 2 | 6% |
| 2016 Prius | 5 | 3% |
| 2015 Prius | 6 | 4% |
| 2014 Prius | 5 | 2% |
| 2013 Prius | 16 | 4% |
| 2012 Prius | 9 | 2% |
| 2011 Prius | 11 | 2% |
| 2010 Prius | 60 | 2% |
| 2009 Prius | 8 | 2% |
| 2008 Prius | 27 | 2% |
| 2007 Prius | 11 | 1% |
Other reported problem areas on the 2017 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.