2008 Toyota Prius engine problems
49 owner complaints filed with NHTSA name the engine on the 2008 Toyota Prius — 3% of all complaints for this model year.
What owners report
“Water pump failed after replacement in 2013 with 30k miles, car had only 93k miles when failed again in 2016. The potentiometer part failed, there is corrosion in the part. Was in freeway when it failed. I have reported this to different representatives. I was charged more 1.5k for a replacement of…”
filed May 12, 2026
“My name is [XXX] ,i am filing this report on behalf of My daughter [XXX] the driver of the vehicle that involved with the unintended acceleration on the 2009 Toyota Prius .On a good clear morning on [XXX] . My daughter drove the 2009 Toyota Prius to work- when she enter to the parking lot at the…”
filed Jul 2, 2025
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 on Ni-MH high voltage (HV) batteries. This bulletin should be used in conjunction with the applicable model and model year Repair Manual while…
T-SB-0009-26 · Service Bulletin/Repair Instructions · issued Feb 13, 2026OBSOLETE NOTICE February 13, 2026: This bulletin is now obsolete. Please see T-SB-0009-26.
T-SB-0119-15 Rev2 · Service Bulletin/Repair Instructions · issued Feb 13, 2026
Engine problems in other Prius years
| Year | Reports | Share |
|---|---|---|
| 2022 Prius | 2 | 8% |
| 2019 Prius | 5 | 17% |
| 2018 Prius | 2 | 6% |
| 2017 Prius | 12 | 13% |
| 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% |
Other reported problem areas on the 2008 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.