2004 Toyota Prius electrical system problems
177 owner complaints filed with NHTSA name the electrical system on the 2004 Toyota Prius — 29% of all complaints for this model year.
What owners report
“The odometer on my 2004 Prius stops at 299,999. This is a known problem in the 04-05 models that was corrected in 2006. Leaves me unable to track miles for maintenance and other uses. This also has the problem with the entire digital dash going dark which means no speedometer or gas gauge. Making…”
filed Jul 21, 2025
“During a hot period of summer, my drive selector decided to not stay in the drive position unless I held it there. I could make the initial selection of drive and then stop on the gas, but it would not stay unless I physically held the lever down in the drive position. I never had an issue with the…”
filed Nov 12, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Prius years
| Year | Reports | Share |
|---|---|---|
| 2024 Prius | 3 | 14% |
| 2022 Prius | 6 | 25% |
| 2019 Prius | 4 | 14% |
| 2018 Prius | 2 | 6% |
| 2017 Prius | 11 | 12% |
| 2016 Prius | 20 | 13% |
| 2015 Prius | 27 | 17% |
| 2014 Prius | 33 | 16% |
| 2013 Prius | 50 | 12% |
| 2012 Prius | 52 | 12% |
| 2011 Prius | 68 | 13% |
| 2010 Prius | 192 | 7% |
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.