definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
40,538 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Toyota Prius engine problems

engine problem

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2007 Toyota Prius Owner Comments

problem #10

Jun 012016


  • miles


2007 Toyota Prius. Consumer writes in regards to vehicle oil consumption issues. The consumer stated the vehicle used a quart of oil a week.

- Chicago, IL, USA

problem #9

Feb 282013


  • 121,568 miles
The contact owns a 2007 Toyota Prius. The contact received notification of NHTSA campaign number: 12V536000 (engine and engine cooling, hybrid propulsion system). The vehicle was taken to an independent mechanic where it was diagnosed that the water pump needed to be repaired. The contact stated that the water pump was repaired previously under a manufacturer's recall. The manufacturer was notified of the failure. The approximate failure mileage was 121,568.

- Simpsonville, NC, USA

problem #8

Jun 162014

Prius 4-cyl

  • 124,989 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.

- Monterey Park, CA, USA

problem #7

Jul 192010


  • 96,400 miles


The contact owns a 2007 Toyota Prius. The contact stated that while driving approximately 55 mph the vehicle started to overheat. The check engine light illuminated on the instrument panel prior to the failure. The vehicle was taken to a dealer nearby and they advised him that they needed to replace the inverter pump. The vehicle was repaired for the inverter and water pump. The failure mileage was approximately 96,400.

- Bomont, CA, USA

problem #6

Jan 012011


  • miles
I have recently moved to Pennsylvania, a state with many hills, and have found that on icy hills, the traction control causes the engine to shut down entirely when the wheels slip. This creates a very dangerous situation where there is no power at all to the wheels, causing the car to slip backward on the ice. I live on a steep hill and my car has almost rolled off the hill three times due to the failure of the traction control / engine. The Prius, unlike many other cars with traction control, has no traction control shutdown/override switch. In researching this online, many other owners report the same problem. Toyota refuses to acknowledge that there is a problem. This is very dangerous.

- Phoenixville, PA, USA

problem #5

Sep 182010


  • miles
I have a 2007 Toyota Prius that is approaching 36,000 miles soon. Its brakes stutter when I try to come to a smooth stop. Its engine also vibrates excessively as if its misfiring, when idling. The symptoms do not happen all the time, but they happen frequently. I have taken the car to the local dealership several times, but they have not been able to fix the problems permanently. After my most recent visit to the dealer, they claimed they could not replicate the brake stutter symptoms and that the car\'s computer had no record of it misfiring. If you do a google search on the internet about "2007 Prius brake stutter problems", it appears to have happened to many other people. Please help. I want the problem fixed, or the vehicle replaced. There has been no physical damage nor crashes nor injuries. However, I am concerned that such symptoms detract from the value of the automobile, or at worst may result in an actual crash and injuries later on. The symptoms are a distraction and annoyance while driving.

- San Luis Obispo, CA, USA

problem #4

Aug 252010


  • 57,775 miles


Was driving at 30mph in residential area. No prior warnings of failure. 1. car turned off - not the power but the ability to drive or put in gear or run. Car was non-drivable or movable in any way for next 3 hours. 2. never happened before, problem unknown as the car works perfectly. 3. dealer said they had no explanation Toyota Prius 2007 stalled and would not start - had car towed to dealer and problem disappeared after 12 hours. They had no explanation.

- La Jolla, CA, USA

problem #3

Dec 252007


  • 2,000 miles
The contact owns a 2007 Toyota Prius. The contact stated that whenever the front wheels began to spin in icy or snowy conditions, the engine completely shut off. The failure occurred multiple times while trying to drive up a hill or an inclined driveway. The dealer inspected the fuel injection system on several occasions and was unable to find the cause of the failure. The manufacturer stated that the vehicle was designed in such a way that the engine would turn off to avoid damaging the stability control system. The vehicle has not been repaired. The current mileage was approximately 36,000. The failure mileage was approximately 2,000. Updated 3/16/10 updated 06/29/10

- New London, NH, USA

problem #2

Nov 282007

Prius 4-cyl

  • miles
My 2007 Toyota Prius stalled without warning in heavy freeway traffic on a bridge with no shoulder. The wa state D.O.T. pushed me to safety. Again, my 2007 Prius stalled without warning in freeway traffic!!!!!!

- Seattle, WA, USA

problem #1

Apr 072007

Prius 4-cyl

  • Automatic transmission
  • 2,644 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. I started the car. Those lights stayed on. I was told I left the "trunk door" open & ran down the battery. (not true.) there is a gasket around the access hole and if a person "is a little bit off, " the gas will regurgitate. (I was not " off" & did not top off the tank.) they reprogrammed the computer. The gas tank had not been filled so I knew they did not fill the gas tank and try to recreate the situation as they said they would. I bought gas at a different pump. I stopped at a stop light. I could feel a loss of power in the car. When I pushed the gas pedal, the car would not move. I turned the car off and on 3 times before it would move. It crept slowly through the intersection as the traffic signal turned red. I took the car in at 8,936 miles. I was told if my problem is associated with the battery that was taken out of my car, it is not at repair person's responsibility because he did not touch my battery. When a battery is disconnected for a certain amount of time, if something is not reset, it could cause problems. Then, he said no trouble found/my car stalled and/or had a loss of power. I took it in at 9,014 miles. No trouble found. I was told that my problems could have been caused by a faulty gas pump overfilling my tank. The gas station is new. The manager said the pumps were inspected. If there were a faulty pump, everyone would have problems.

- Moorpark, CA, USA

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