2006 Toyota Prius Engine cooling Problems
- Complaints
- 20about this part
- Share
- 1%of 1,439 total for the year
- Median mileage
- 46,100miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 20 complaints about the engine cooling of the 2006 Toyota Prius, 1% of the 1,439 complaints for this model year. Where a mileage was given, the median is 46,100 miles. 1 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have a Toyota Prius (hybrid). A little cat got underneath my car without me noticing it and since this type of car does not turn the engine when you turn the car on, it does not make any noise (when you turn the car on it runs from the battery at the beginning... Eventually the engine kicks in) since the car made no noise the little cat did not notice that the car had been turned on and the little cat did not move away from the car. …”
NHTSA complaint #10276023, filed 2009-07, 77 miles“Starting up my Toyota Prius coming out of a car wash the engine stuck with high revs. I confirmed it was not the car mat because I had been in the car wash and that was my thought. Could not get the engine to stop over revving (was consistently high). Never went into high speed. Was able to control it by putting it in low gear and neutral at the intersections. In less than 1 mile I turned off the car and did not have any follow-on problems. Not the car mats.”
NHTSA complaint #10304720, filed 2010-02, 57,500 miles“I have a 2006 Prius. When going over bumps, I experience a total loss of power for 1 or three seconds -generally. A yellow light also comes on the dash board. It often happens daily. I have only had one or two experiences when the power didn't return so quickly and then I was afraid because I had no brakes and was just skidding. I believe that I have seen this problem discussed by other Prius owners of chat sites. It can occur at any mileage speed but I was only able to put a mileage number in the box can it be fixed?”
NHTSA complaint #10306391, filed 2010-02, 100 miles“A gasoline and or oil smell in the car that permeates everything in the car. My clothes, computer bag, papers, just everything that comes in contact with the inside of the car. I also get sick from the odor ie headaches, nausea, blurred vision, dizziness. I also have a burning taste in my mouth, throat and eyes. I have been to the doctors and they there is no other reason for me to be feeling the way I do and that it is the environment of my car that is producing this very serious irritant . …”
NHTSA complaint #10167777, filed 2006-09, 1,000 miles“I own a 2006 Toyota Prius. Before I heard of any complaints of the engine revving at high speeds, this occurred to me when the car was only 1 year old, while it was in park. The engine suddenly started revving at high speed shortly after I pressed the power bottom. I thought the engine may have been cold. I was still in park when I turned the engine off, waited about 2 minutes, then pushed the start button again with the engine returning to normal. Around this time I had heard of a problem with the cruise control causing this problem, but it has not occurred since.”
NHTSA complaint #10304738, filed 2010-02, 15,000 milesRelated service bulletins
- 10253223Mar 4, 2024This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the…
- 10179698Aug 5, 2020TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid…
- 10179602Aug 5, 2020TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid…
- 10132091Oct 8, 2013Some 2004 ? 2009 model year Prius vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P0A80 or P0A7F stored due to dust or debris build-up in the HV…
- 10132204Aug 12, 2013For vehicles that are used under certain severe operating conditions, the HV Battery Cooling Fan may experience an excessive buildup of dust, lint, or other debris that can…
- 10042966Dec 1, 2011Toyota: see document search button for owner letter. Information regarding water pump replacement, on some electric hybrid vehicles, which causes slowness of the pump actuation.
- 10034284Feb 4, 2010Toyota: techstream ecu flash reprogramming procedure. Flash reprogramming allows the ecu software to be updated without replacing the ecu. Flash calibration updates for specific…
- 10025867Jun 6, 2008Toyota: engine control: some customers may report a m.I.l. On condition that occurs after operating the vehicle for extended times in ready on mode with the transaxle in the park…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 1 | 4% |
| 2019 | 1 | 3% |
| 2018 | 3 | 8% |
| 2017 | 1 | 1% |
| 2016 | 1 | 1% |
| 2012 | 1 | 0% |
| 2011 | 5 | 1% |
| 2010 | 33 | 1% |
| 2009 | 7 | 1% |
| 2008 | 16 | 1% |
| 2007 | 17 | 1% |
| 2006 | 20 | 1% |
| 2005 | 64 | 6% |
| 2004 | 89 | 15% |
| 2003 | 11 | 11% |
| 2002 | 11 | 7% |
| 2001 | 18 | 11% |
Other parts of the 2006 Toyota Prius
941 complaintsBrakes
210 complaintsElectrical system
152 complaintsVehicle speed control
84 complaintsOther or unknown
44 complaintsAir bags
30 complaintsEngine
25 complaintsSteering
22 complaintsTransmission and drivetrain
22 complaintsFuel system
20 complaintsEquipment
18 complaintsElectronic stability control
15 complaints
← All problems reported for the 2006 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