2004 Toyota Prius Electrical System Problems
Owners have filed 177 complaints with NHTSA about electrical system problems on the 2004 Toyota Prius, 29% of all complaints for this model year. Half of the reports with a mileage happened before 30,000 miles. The words owners use most often: “gas engine” (5% of reports).
- 177electrical system complaints
- 30,000median miles at failure
- 4mention a crash
- 1mention an injury
- 0related recalls
- $3,700typical repair cost reported by owners
- 37%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Gas engine: mentioned in 9 of 177 complaints (5%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical electrical system repair on the 2004 Toyota Prius at $3,700, and half of them between $1,500 and $5,700.
Based on 10 NHTSA complaints about this problem alone that state a repair bill or quote (2007–2015), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do electrical system problems happen?
Based on 144 complaints that reported the odometer reading.
How serious are the reports?
Of 177 complaints, 4 mention a crash, 2 a fire, 1 an injury.
Toyota Prius electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Prius | 2 | 33% | — |
| 2025 Prius | 6 | 38% | 12,450 |
| 2024 Prius | 4 | 15% | — |
| 2023 Prius | 5 | 25% | — |
| 2022 Prius | 6 | 25% | 114,000 |
| 2021 Prius | 1 | 17% | — |
| 2020 Prius | 2 | 14% | 1,325 |
| 2019 Prius | 4 | 13% | — |
| 2018 Prius | 2 | 5% | 19,100 |
| 2017 Prius | 11 | 12% | 5,000 |
| 2016 Prius | 20 | 13% | 25,500 |
| 2015 Prius | 27 | 16% | 21,000 |
| 2014 Prius | 33 | 16% | 19,483 |
| 2013 Prius | 52 | 13% | 65,000 |
| 2012 Prius | 52 | 12% | 36,600 |
| 2011 Prius | 68 | 13% | 81,482 |
| 2010 Prius | 192 | 7% | 65,000 |
| 2009 Prius | 60 | 12% | 89,761 |
| 2008 Prius | 235 | 16% | 81,500 |
| 2007 Prius | 248 | 12% | 66,945 |
| 2006 Prius | 152 | 11% | 61,500 |
| 2005 Prius | 178 | 17% | 100,000 |
| 2004 Prius | 177 | 29% | 30,000 |
| 2003 Prius | 13 | 13% | 108,000 |
| 2002 Prius | 18 | 11% | 88,500 |
| 2001 Prius | 27 | 16% | 61,000 |
When owners reported it
Related recalls (0)
No safety recall lists electrical system for the 2004 Toyota Prius. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
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…
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…
The contact owns a 2004 Toyota Prius. The contact stated while driving approximately 30 MPH, the vehicle stalled. The vehicle lost power steering functionality but the contact was able to safely pull off of the road. The contact stated that the check engine warning light and other unknown warning…
Frequently asked questions
Do all 2004 Toyota Priuss have electrical system problems?
No. NHTSA has 177 owner complaints about electrical system for the 2004 Toyota Prius (29% of the 610 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2004 Toyota Prius electrical system?
No recall currently lists electrical system for this vehicle.
At what mileage do electrical system problems start?
The median reported mileage is 30,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix electrical system problems on the 2004 Toyota Prius?
Owners report a typical cost of $3,700 (half paid between $1,500 and $5,700), from 10 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about electrical system problems on the 2004 Toyota Prius?
The most frequent phrase is “gas engine”, in 9 of 177 complaints.
Other 2004 Toyota Prius problems
See all 2004 Toyota Prius problems or electrical system problems across all Prius years.