2004-2008 Toyota Prius: Reliability
Updated: 11/23/08
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Our reliability study for this generation Toyota Prius includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Toyota Prius .
Trouble Spots
Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search
for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested
solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer,
however, we have our own expert looking at additional vehicle problems.
Brake lights:
The parking brake light may stay illuminated after release and a revised pedal assembly was made available. (2004-06)
Check-engine light:
The check engine light may come on due to a problem with the coolant flow control valve. (2004-06)
Coolant leak:
A coolant leak may develop in the converter/inverter assembly, requiring component replacement, but this part is covered by the 96 month/100,000 mile warranty. (2004-05)
Dashboard lights:
Using the wrong oil viscosity can trigger the malfunction indicator light and throw a trouble code for "engine does not start." (2004-05)
Dashboard lights:
Some early production vehicles may light the malfunction indicator due to an air/fuel ratio sensor problem, but an improved sensor is available. (2005)
Dashboard lights:
The Hybrid System malfunction indicator light may come on even though there are not obvious problems on some early production vehicles, but a special wire must be installed in the high-voltage battery system. (2004)
Fuel gauge:
The fuel meter may be inaccurate and the tank may not hold the amount it is supposed to, requiring replacement of the meter and/or the fuel filler pipe. (2004)
Pedals:
The brake pedal may squeak and, if bleeding the system does not help, the brake actuator may have to be replaced. (2004-06)
Consumer Guide® Estimated Repair Costs
This table lists costs of likely repairs for comparison with other vehicles. The
dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the
typical repair without extras or add-ons. Like the pricing information, replacement
costs can vary widely depending on region. Expect charges at a new-car dealership
to be slightly higher.
| Item Name | Repair Cost |
| A/C Compressor | $1,750 |
| Alternator | $1,305 |
| Automatic Transmission or Transaxle | $9,350 |
| Brakes | $530 |
| Clutch, Pressure Plate, Bearing | |
| Constant Velocity Joints | $1,240 |
| Exhaust System | $800 |
| Radiator | $425 |
| Shocks and/or Struts | $920 |
| Timing Chain or Belt | $640 |
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