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Engine coolingPart report

2007 Toyota Prius Engine cooling Problems

Complaints
17about this part
Share
1%of 2,004 total for the year
Median mileage
34,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 17 complaints about the engine cooling of the 2007 Toyota Prius, 1% of the 2,004 complaints for this model year. Where a mileage was given, the median is 34,000 miles.

Example complaints

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

“Toyota has failed to recall the electric water pump in the second generation Prius. Toyota has recalled the first generation Prius for a faulty electrical water pump, which is the same pump found in the second generation. While driving home from work, my check engine light turned on and I had to go to the Toyota service to get it checked. After being told that it was recalled on the first generation, I looked up information online on if this was the same water pump. …”

NHTSA complaint #10404282, filed 2011-06, 76,000 miles

“Date: 02/09/2010 time: 10:01:20 creation date: 02/09/2010 creation time: 09:58:43 I would like to report a braking/traction control/loss of engine power safety problem with my 2007 Toyota Prius. The problem happens while driving on snow covered flat road surfaces (1 inch of snow), snow covered hilly roads (1 inch of snow), and bumpy road surfaces. When the traction control system (trac) engages on these road surfaces, I lose the ability to brake and also lose power to the engine simultaneously. I have had four (4) near-accidents due to this safety problem. …”

NHTSA complaint #10307785, filed 2010-02, 7,500 miles

“I own a 2007 Prius with 35,000 miles on it. We have been a 2 Prius family for 6 years, so I am highly familiar with driving one. I have had three very frightening incidents happen in about the last 4 months in my car. Each has happened in exactly the same spot during a commute that I do several times a week. I have been exiting from a freeway, going 65 MPH, down a gentle downslope. When I exit (continuing the downslope) the engine starts revving at a speed that I never have heard during any normal driving circumstance. This is while I am braking to stop at a light at the bottom of the exit. …”

NHTSA complaint #10313109, filed 2010-02, 34,000 miles

“Indicator lights flashed. Malfunction indicator lamp stayed on. At 2,644 miles, 12 v. Battery dead & replaced. I was told to keep the gas tank half or a quarter full or the reserve gas tank would cause the car to run on battery. The battery might have died because the car sat too long before it was sold/at 8,879 miles, I went in. After filling the gas tank & taking out the nozzle, gas spewed & bubbled out. The car stalled while driving slowly & while in park. Indicator lights flashed. The malfunction indicator lamp and master warning lights stayed on. It took 5 min. To turn off the car. …”

NHTSA complaint #10195443, filed 2007-07, 2,644 miles

“On june 17, 2014 longo Toyota service consultant stated the inverter water pump part #04000-32528 needed to be replaced at a part cost of $146. This same inverter water pump was replaced at longo on march 6, 2011.”

NHTSA complaint #10598993, filed 2014-06, 124,989 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202214%
201913%
201838%
201711%
201611%
201210%
201151%
2010331%
200971%
2008161%
2007171%
2006201%
2005646%
20048915%
20031111%
2002117%
20011811%

Other parts of the 2007 Toyota Prius

Exterior lighting
1,060 complaints
Brakes
331 complaints
Electrical system
248 complaints
Body and structure
184 complaints
Vehicle speed control
124 complaints
Other or unknown
105 complaints
Air bags
50 complaints
Latches, locks and linkages
42 complaints
Transmission and drivetrain
41 complaints
Engine
37 complaints
Electronic stability control
34 complaints
Steering
34 complaints

← All problems reported for the 2007 Toyota Prius

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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