2017 Toyota Prius engine problems
12 owner complaints filed with NHTSA name the engine 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
“Dear NHTSA, I am seeking assistance and compensation for ongoing warranty and repair issues with my Toyota Prius. Key Incident Timeline: •March 21, 2024: Dashboard message “Grille Shutter Inoperable” •March 25, 2024: Toyota of Glendale visit •Charged $220 for diagnostics •Refused to honor service…”
filed Nov 21, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. This bulletin should be used in conjunction with the applicable model and model year…
T-SB-0110-20 Rev2 · Service Bulletin/Repair Instructions · issued Dec 10, 2024
Engine problems in other Prius years
| Year | Reports | Share |
|---|---|---|
| 2022 Prius | 2 | 8% |
| 2019 Prius | 5 | 17% |
| 2018 Prius | 2 | 6% |
| 2016 Prius | 17 | 11% |
| 2015 Prius | 8 | 5% |
| 2014 Prius | 17 | 8% |
| 2013 Prius | 37 | 9% |
| 2012 Prius | 31 | 7% |
| 2011 Prius | 46 | 9% |
| 2010 Prius | 140 | 5% |
| 2009 Prius | 19 | 4% |
| 2008 Prius | 49 | 3% |
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.