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really awful
Crashes / Fires:
16 / 2
Injuries / Deaths:
9 / 0
Average Mileage:
49,544 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.

2006 Toyota Prius engine problems

engine problem

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2006 Toyota Prius Owner Comments (Page 1 of 4)

problem #74

Nov 232011


  • miles


I was in a 2006 Toyota Prius car accident on the freeway when the steering wheel started jerking (to the point of no control), the brakes stopped working and the car kept accelerating. Car lost control. Car was totaled, two witnesses and a police report. I was sent the emergency room. No responsibility was assumed by Toyota, which completed their "inspection" on March 9th, 2012. Then eight months later on November 14, 2012 they come out with two recalls: A steering recall & an engine and engine cooling, hybrid propulsion system recall, probably as part of what they saw happened to me. I was never notified after about these recalls that my car potentially could've been defective from and part of.

- Bellevue, WA, USA

problem #73

Nov 042015


  • 128,780 miles
While driving 20 M/H vehicle suddenly eccelerated and I hit the guard rail when experiencing unintended acceleratition

- Westminster, SC, USA

problem #72

Sep 022015

Prius 4-cyl

  • 103,000 miles
My wife [xxx] had a serious accident in the parking lot of the victorian on main St in santa monica on Wednesday September 2. from standstill, her 2006 Prius suddenly accelerated to a very high rate on its own and the car's brakes were completely non-responsive. In this relatively confined parking area, after a frightening period of trying to regain control of the vehicle, she made a split-second decision to crash into a tree at a relatively high speed in order to avoid steering the car onto main St. And causing a much more serious accident that would have impacted many people, automobiles and public and private property and possibly resulted in multiple deaths and multiple serious injuries. She sustained a broken foot. Her passenger sustained bruising. Both were taken by ambulance to St. John's hospital. Both airbags deployed. The 2 occupants were wearing seat belts. As a result, and only because of [xxx] quick thinking and potentially sacrificial action, [xxx], her passenger and many other non-suspecting people are alive today. It is apparently well-established that the Prius can accelerate in this manner. In this case, the circumstances would appear to be straight forward: A car parked in a parking lot and started suddenly accelerates on it's own and refuses to allow the driver control. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Los Angeles, CA, USA

problem #71

May 042015


  • 116,000 miles


On the morning of may,04,2015 upon entering the car and starting it up the instrument panel fails to display. Not certain what the issue was I performed various check including the the accessory battery and attempted multiple times starting and stopping the car to no avail. I left the car where it was and a few hours later when I returned everything worked fine for a few more weeks then the issue occurred again. However, I have noticed that the issue is occurring now more frequently including when driving (stopped then go). Furthermore, whenever this issue occurs it becomes almost impossible to power the engine off and since their is no cluster display to let you know vital safety information, including speed, gas, mileage, gear (D-R-N) this creates an unsafe and hazardous condition for operators of this vehicle. Toyota motor Corp. Is very much aware of this hazard which results from a manufacture defective combination meter.

- Piscataway, NJ, USA

problem #70

Feb 162015

Prius 4-cyl

  • 246,000 miles
Combination meter failed leaving the vehicle without instrument cluster information. There is a manufacturer warranty extension which does not cover vehicles on the road over 9 years. This represents a hazard to the public which has a documented solution and replacement components.

- Willow Street, PA, USA

problem #69

Feb 032015

Prius 4-cyl

  • 138,100 miles
Automatic transmission selector shifted from drive (D) into neutral (N). This could be temporarily corrected by manually re-selecting D, but in about 3 seconds, it shifted back to N. we drove by keeping one hand on the lever to keep it in D. after we stopped, the same problem occurred in reverse (R) -- the selector shifted into N after a couple of seconds. Again, we were able to move the vehicle by maintaining pressure in the direction of the R selection. I've found several references to this problem on websites. It appears to be solved by installing a new selector assembly.

- Arlington, VA, USA

problem #68

Mar 062014

Prius 4-cyl

  • 118,000 miles


The contact owns a 2006 Toyota Prius. The contact stated that while traveling various speeds, the vehicle suddenly lost acceleration power. The vehicle was taken to a private mechanic where the failure could not be replicated. The manufacturer was contacted about the failure. The failure mileage was approximately 118,000.

- West Covina, CA, USA

problem #67

Oct 012007

Prius 4-cyl

  • 10,000 miles
We have had several head lights on our pruis stop working. Usually you have to turn the lights on and off to get them to go back on when they turn off on their own. We have replaced the headlights approx. 4 times over the years and again we are having the same problem. They are extremely expensive headlights. The consumer stated she experienced sudden acceleration on three separate occasions.

- Central Point, OR, USA

problem #66

Jan 222013


  • 112,000 miles
Car's engine would not shut off. Additionally, the digital dashboard (which shows the speedometer, odometer, gas gauge, etc.) would not light up. Toyota dealer says it is due to a failed combination meter. The part is on national backorder. It has been more than two weeks and my car is still awaiting the part.

- Royal Oak, MI, USA

problem #65

Oct 152012

Prius 4-cyl

  • 91,710 miles
I found that there is malfunction on the buttons on steering wheel, especially info button and buttons for climate. I researched the problem on internet and I found the problem is caused by a bad clock spring. Also, I found the clock spring is related with air bag module. There are a lot of owners have the same problem (such as I think that it could be a recall issue. And I experienced another problem. The accelerator pedal of my car was repaired by the recall service before. But when I release the accelerator pedal and try to push brake pedal, there is difference of height between both pedals. The height of brake pedal is higher than the accelerator pedal, even if I released the accelerator pedal. So it is dangerous to operate both pedals. When I tried to push the brake pedal after I released the accelerator pedal, my right feet was stuck with the brake pedal. I think the recall service for the accelerator pedal of my car was not successful. Or there is another problem on the brake pedal of Prius.

- Overland Park, KS, USA

problem #64

Sep 012006


  • miles


The contact owns a 2006 Toyota Prius. The contact stated that while starting the vehicle, the instrument panel went blank and the vehicle erroneously accelerated. The vehicle was driven to the dealer where the failure could not be replicated. The manufacturer was contacted about the issue. The vehicle was not repaired. The failure mileage was unavailable. The VIN was unavailable.

- Shippensburg, PA, USA

problem #63

Jun 142012

Prius 4-cyl

  • 47,000 miles
I needed to wait for a service person to arrive and open the door to their business. After several minutes, while gear was set in park outside a building with the motor running and radio on, the car suddenly jumped ahead by several inches. It stopped just as suddenly. Very scary. I have left the car in park with the motor running a few more times to see if it would do it again. No repeat incident so far. It moved a short distance, but would have been enough to hit a curb, person, or container who/that was near the car.

- Durham, NC, USA

problem #62

Aug 042010

Prius 4-cyl

  • 128,858 miles
"!", ABS, and vsc lights come on and brakes stop working - while driving. Must coast to side of road, turn off vehicle, and restart. Then brakes work for a while until problem recurs. Replaced brake stroke sensor. Fixed problem for 17 months - 20,000 miles. Again, brakes fail while driving. Getting code dtc 1247 - fault in stroke sensor. Told part is out of warranty and must be replaced again. Vehicle shouldn't have a part that fails every 20,000 miles resulting in complete loss of braking while driving.

- Skokie, IL, USA

problem #61

Nov 052011

Prius 4-cyl

  • 52,000 miles
Combination meter failed, there was no dash display, no speed display, and vehicle would not shut down. Fortunately we were not out of town so we drove the vehicle to our regular Toyota dealer, ourisman fairfax Toyota, fairfax, va, and left it there.

- Washington, DC, USA

problem #60

Dec 202010


  • 95,000 miles
The contact owns a 2006 Toyota Prius. The contact stated that while driving approximately 5 mph and trying to park her vehicle it suddenly accelerated forward and crashed into steel cables. The vehicle then shifted into reverse and crashed into the steel cables again. The contact was not injured from the crash. The vehicle was towed away from the scene. The vehicle was not repaired. The failure mileage was approximately 99,000. The VIN was unavailable.

- La Habra Heights, CA, USA

problem #59

Sep 282010


  • 182,000 miles
2006 Toyota Prius. Consumer states unintended acceleration the consumer stated the vehicle was on cruise control, when the engine suddenly revved. He noticed the speed had increased from 72 mph to 74 mph. He released the cruise control and the engine stopped revving. He then set the cruise control again, and it happened again. The consumer also stated he noticed the lcd screen had froze and it was giving false information. The consumer has since sold the vehicle.

- Olean, NY, USA

problem #58

Sep 072010


  • 45,000 miles
As a follow up to ODI 10354506 - Toyota pulled the information off the event data recorder and it indicated that the throttle and the brake were both engaged at the same time. That is true, but my foot was only on the brake. I only use my right foot to accelerate and to brake. As soon as the car started accelerating, I moved my foot over to slam on the brakes. It makes sense that the event data recorder would show the throttle and brake engaged at the same time, but my foot was only on the brake. Something else was engaging the throttle, and apparently Toyota has no way to figure out what that could be. The dealer, while sympathetic, had no fix that he could apply.

- State College, PA, USA

problem #57

Sep 072010


  • 45,000 miles
I was pulling into a parking space at a very low rate of speed (less than 5 mph) and the car suddenly shot forward. I stood on the brakes and the car responded as expected - it stopped. I turned off the power. About 10 minutes later, I turned the car on and it drove normally. There was no floor mat - I had removed it months ago. My foot was on the accelerator, easing into the parking space and I didn't feel the accelerator move at all. It was like the car accelerated without any input from the accelerator at all. I've taken the car to the dealer, but I'm afraid to drive it now, and I'm afraid to take my children anywhere in it.

- State College, PA, USA

problem #56

Sep 072010

Prius 4-cyl

  • 108,577 miles
After exiting an interstate, I was stopped at a traffic light. I accelerated when the light turned green, to approximately 40 mph. After about 200 feet, as I approached a merge point, I took my foot off the gas, but the car kept accelerating. I immediately stepped on the brake, and the car slowed. I removed my foot from the brake, and felt the car continue to accelerate on its own. I didn't have another car in front of me, so I stepped on the gas pedal briefly, and then on the brake again, and then it seemed to operate normally again. Remembering about the floor mat recall, I immediately looked down to check to see if the gas pedal was clear of the mat. It was. After I had parked the car, I noticed that the mat was still secured in its proper place. There wasn't anything else that could have interfered with the pedal. Later that same day, I was driving my 13yr old daughter home from school. I was stopped at a stop sign. I made a left turn onto a busy street during rush hour. After accelerating through the turn, I took my foot off the gas because there were cars ahead of me stopped for another light. The car continued to accelerate. I stepped on the brake, which was stiffer than usual, and I could hear the engine continuing to rev in the background. The car slowed. I had a little space in front of me, so I eased up off the brake, but the car continued to accelerate on its own. I pressed down on the brake again, all the while feeling the continued acceleration, and moved off to the side of the road, where I braked until I came to a stop. This was a two lane road with no shoulder, so I just moved over as far as I could and put my hazards on. I was still part way on the road. I put the car in park, pushed the on/off ignition switch, and shut down the car. I sat there for a few minutes, re-started the car and drove home without further event.

- Ballston Lake, NY, USA

problem #55

May 152010


  • 28,000 miles
I own a 2006 Toyota Prius. When I apply the brake when going over rough terrain or potholes, it feels like the car speeds up momentarily before the braking kicks in. I have talked to my dealer about this, but he the mechanic says it is normal for hybrids.

- Pittsburgh, PA, USA

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