really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
17,327 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 #6

May 212010

Prius 4-cyl

  • Automatic transmission
  • 11,923 miles


2007 Toyota Prius. Consumer writes in regards to vehicle throttle malfunction. The consumer stated the vehicle accelerated out of control and crashed into another vehicle. The consumer stated she had problems with the throttle being stuck open, prior to the accident. Also, the air bag light illuminated. The dealer found an open circuit in the spiral cable.

- Lodi, CA, USA

problem #5

Jan 262012

Prius 4-cyl

  • miles
Sudden acceleration while entering one of the state of Wisconsin emission testing centers for annual required test. I had 10 to 15 seconds to respond after the car took off. I placed both feet on the brake and the car would not stop, as there was no time to try anything else. I had to choose to hit the testing center or a post; I made a conscious decision to hit the post. The air bag deployed. Insurer declared Prius a total loss. Car had 2009 recall for floor mats and accelerator at Toyota dealer. Picture after crash, showed the floor mats in place. Car had 50,000 mile maintenance at dealer 11 days prior to crash. Updated 02/28/12

- Milwaukee, WI, USA

problem #4

May 052010


  • 31,541 miles
The contact owns a 2007 Toyota Prius. While driving 45 mph, the accelerator pedal became stuck and the speed increased to 55 mph. The contact was forced to kick the pedal in order to release it; however, within a few seconds it became stuck again. The vehicle slowed down as the contact continued to depress the brake pedal firmly. He pulled over to the side of the road and turned off the engine. The vehicle was towed to an authorized dealer where the repair for the recall on the accelerator pedal was performed. The dealer did not explain the repair in detail. He called the manufacturer but was offered no assistance. The current and failure mileages were 31,541.

- Whitestone, NY, USA

problem #3

Sep 032009

Prius 4-cyl

  • Automatic transmission
  • 22,000 miles


The contact owns a 2007 Toyota Prius. While driving 55 mph the contact attempted to accelerate and pass another vehicle when the accelerator pedal had became stuck to the floor. The contact pushed the pedal back into position which stopped the acceleration. The vehicle was taken to the dealer who stated that the failure could not be reproduced. The current and failure mileages were 22000. Updated 03/16/10 the consumer stated the vehicle accelerated three times after the mats were removed. Updated 07/13/10

- Fresno, CA, USA

problem #2

Dec 172009

Prius 4-cyl

  • Automatic transmission
  • 25,000 miles
The contact owns a 2007 Toyota Prius. The contact received a recall notification under NHTSA campaign id number 09V388000 (vehicle speed control:accelerator pedal). The technician refused to repair the vehicle under the first recall remedy. There was concern of the potential safety hazard; however, no failure has occurred at this time. Updated 3/8/10 the consumer stated he received the recall for the pedal modifications, but when he arrived at the dealer, he was informed they were not going to perform the recall and they were waiting for a permanent fix. Updated 04/06/10.

- Daton, OH, USA

problem #1

Mar 042008

Prius 4-cyl

  • Automatic transmission
  • 13,497 miles
To:NHTSA.webmaster@dot.gov subject:Toyota Prius 2007 model comments: Although my dealer has run a complete battery of computer tests, no explanation is apparent for the vehicle accelerating on its own at high speed on the highway. It has happened to me twice and it is terrifying. The two instances were a couple of months apart. Both times, I was on the highway and had driven 10-20 miles without a problem. Once the gas pedal was physically jolted up, the problem was corrected. When it is occurring, the brakes do not slow it down by more than 3-4 mph. My dealer is A-1 Toyota in new haven.

- New Haven, CT, USA

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