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Body and structurePart report

2004 Toyota Prius Body and structure Problems

Complaints
2about this part
Share
0%of 610 total for the year
Median mileage
140,422miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the body and structure of the 2004 Toyota Prius, 0% of the 610 complaints for this model year. Where a mileage was given, the median is 140,422 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Water intrusion caused corrosion of the main engine wiring harness which caused a fault in the auxiliary 12v battery and has made the vehicle undriveable. Toyota cannot determine the source or cause of the water intrusion even though I have brought in the vehicle for routine maintenance since I purchased it and I have complained about a problem which is related to the auxiliary 12v battery several times in the past. This seems to be a flaw in the 2004 Prius design.”

NHTSA complaint #10482546, filed 2012-10, 140,422 miles

“2004 Toyota Prius. Failure to seal the cabin and under dash areas from open access allowed small rodents to enter the outside air vent leading to the cabin air filter, caused wiring and tubing damages. Updated 11/29/2005 -a foul odor could also be smeele inside the vehicle due to the rodents living inside the vehicle.”

NHTSA complaint #10144306, filed 2005-11

Related service bulletins

Body and structure: other model years

YearComplaintsShare of year
202516%
202427%
2023314%
202214%
202017%
201838%
201778%
2016117%
201564%
201494%
2013133%
2012235%
201192%
2010351%
2009194%
2008685%
20071849%
2006151%
2005111%
200420%
200311%
200211%
200132%

Other parts of the 2004 Toyota Prius

Exterior lighting
184 complaints
Electrical system
177 complaints
Engine cooling
89 complaints
Brakes
76 complaints
Vehicle speed control
52 complaints
Transmission and drivetrain
34 complaints
Air bags
18 complaints
Other or unknown
18 complaints
Fuel system
13 complaints
Steering
10 complaints
Visibility (wipers, defrost, mirrors)
10 complaints
Engine
9 complaints

← All problems reported for the 2004 Toyota Prius

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology