Skip to content
EquipmentPart report

2004 Toyota Prius Equipment Problems

Complaints
7about this part
Share
1%of 610 total for the year
Median mileage
18,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the equipment of the 2004 Toyota Prius, 1% of the 610 complaints for this model year. Where a mileage was given, the median is 18,500 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.

“I have a 2004 Toyota Prius. Since 2004, my headlights have gone out 5 times. The right headlight has gone out 3 times and the left 2 times. The last time I replaced the right headlight, it did not last 12 months.”

NHTSA complaint #10384542, filed 2011-02, 20,000 miles

“Regarding my 2004 Toyota Prius: the 'multi-information display, I.e., computer display, does not function frequently, at which time a message saying the air conditioner is disconnected. Simultaneously, when this message appears, the radio instantly turns off. When this occurs access to the computer is impossible, controls of the air conditioner system are unavailable except through those on the steering wheel which continue to function. The computer function later randomly is restored for brief to long periods but remains subject to random failure again. This failure has existed for years. …”

NHTSA complaint #10313582, filed 2010-02, 25,000 miles

“Consumer stated while traveling 40 MPH all of a sudden , the lights illuminated on the dashboard and then everything shut off. The consumer had the vehicle towed to the dealer and they said it was a computer glitch regarding the release of gas to the engine. Just before a loss of power the dvd navigation system went completely out about 2 miles before everything else. The dvd navigation system failed as well.”

NHTSA complaint #10121438, filed 2005-06, 6,800 miles

“2004 Toyota Prius with navigation system problems customer states that now the AC and defroster does not work and the dealership fixed it thank you to the dealership note**nar**cc the consumer stated from time to time the radio would turn off and it would have to be turned back on manually. Then the display began to act erratically . The audio off would appear on the screen and the radio was still playing . The climate control became unresponsive and the screen displayed check the connection of the air condition . …”

NHTSA complaint #10199162, filed 2007-08, 29,000 miles

“Started my 2004 Toyota Prius and placed vehicle into reverse to back out of parking space at daughter's school. Car died while backing, blocking traffic, and would not restart. Orange light glowed on the starter button. This is 7:45pm. Called original dealer in washington pa for advice. No help. Looked in owner's manual for advice. No help. Called local dealer in charlottesville va. No help. A male teacher opened the hood and fuse cover to ensure that all fuses were snug and secure. Nothing. …”

NHTSA complaint #10124564, filed 2005-06, 17,000 miles

Related service bulletins

Equipment: other model years

YearComplaintsShare of year
201611%
201410%
201320%
201241%
201141%
2010151%
200971%
200881%
2007221%
2006181%
200581%
200471%
200344%
200142%

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 31, 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