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 2 of 4)

« Read the previous 20 complaints

problem #54

Mar 292010


  • miles


Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6) since the Toyota recall of their Prius cars my family and I have been worried about our safety in our Prius 2006. We did not want to wait until something happens. We would rather take care of the problem before anything happens but we cannot do that because Toyota dealers are not doing any repairs to my 2006 Prius and their employees lied to me and maybe to all other customers. On 03/29/2010 I took my 2006 Toyota Prius to mike calvert Toyota located at 2333 S. loop West houston tx 77054 for regular service. They finished servicing my Prius about 12:24:20 pm. I asked the cashier how was Toyota takeing care of the Prius recalls. She answered that she did not know anything about it and if I had any questions to ask my service men. My service men, noel butler was present and he said that the recall was only on Prius 2010. My service men kept on talking to the cashier while he was exiting the door and saying "he just want to capitalize on the recall because his car has over 82000 miles and is a Prius 2006. The cashier and noel butler lied to me because everybody knows about Toyota recalls. The recall has been on the news all over the world. On Monday, May 03 2010 I received a letter from Toyota stating that "Toyota has decided that a defect which relates to motor vehicle safety exists in 2004 through 2009 model year Prius vehicles." Therefore, neither Toyota dealers nor employees are being honest with the consumers because they are not honoring any promised repairs. I will never buy a Toyota because they are a bunch of liars. [xxx]

- Houston , TX, USA

problem #53

Apr 232010


  • 130,000 miles
The contact owns a 2006 Toyota Prius. While traveling at approximately 20 mph, the contact depressed the brake pedal but the vehicle did not slow down. The vehicle then crashed into the rear of another vehicle and continued to lunge into the other vehicle until the engine stalled. A police report was filed. The vehicle was at the dealership but repairs had not been performed at the time of the complaint. The current and failure mileages were approximately 130,000.

- Lake Forest, CA, USA

problem #52

Apr 142009


  • 0 miles
The contact owns a 2006 Toyota Prius. While driving at approximately 70 mph, the contact stated that the accelerator pedal went down to the floorboard when depressed. He engaged the brake pedal, turned the vehicle off and then restarted it which seemed to correct the problem. The contact stated that this failure was the second occurrence of the problem. He called the manufacturer and was told that they would get back with him when they were ready to repair the problem. The VIN was unavailable. The failure mileage was unknown. The current mileage was approximately 104,000.

- Walled Lake, MI, USA

problem #51

Mar 232010


  • 25,000 miles


Returning home at 10 P.M I drove up to my garage door and attempted to turn off the motor. Instead the car lurched forward, hitting the door with some force. I slammed on the brakes and put the car in reverse. But instead of stopping it backed rapidly out of the driveway, across the roadway, and into my neighbor's Cadillac. When I put it back in drive it still moved rapidly, this time back across the road and into my garage, causing terrible damage. This happened 4 days ago. Never before. I'm now waiting for a settlement so I can buy a less risky car.

- Goleta, CA, USA

problem #50

Mar 172010


  • 74,000 miles
I floored my '06 Prius on the on-ramp to the parkway. When I took my foot off the accelerator, the car continued to accelerate at full throttle. I could slow the car with the brake, but felt I could not stop it without serious damage to the brake or the drive train. Instead, I slipped my the sole of my shoe under the edge of the accelerator and lifted it up. The engine responded normally and the problem has not recurred, although I have been careful not to floor the accelerator until I have the Toyota shop look at it.

- Huntsville, AL, USA

problem #49

Mar 152010


  • 80,000 miles
1996 Toyota Prius - (3) things I have noticed when operating car. (1) when braking and going over rough pavement, car will behave as though it is hydroplaneing - the brakes not slowing the car for a brief period until car settles down. This can happen when going as slow as 5 mph. The faster one is going when hitting the rough pavement, the farther the car will travel before braking sensation re-appears. I believe this occurs everytime I travel rough pavement (la city streets, not back country or 4 wheeling). Note that warning light on dashboard does light suggesting loss of control. I called dealer service center and described problem, they assured me that no safety warnings or recalls had been made. 2) when turning off cruise control, car will accelerate slightly for approximately 1-2 seconds. This is most noticeable when trying to exit carpool lane in heavy traffic and spacing is limited. Again called dealership and assured no safety notices or recalls. I now cover brake when turning off speed control. 3) car just eats up hid headlight (9 in 80K miles + 2 original installed) and taillight bulbs (11 + 2 originally installed). Again no safety notices or recalls. I replace them as I notice them. I have never had both headlights go out at once as described on your website. Note that other than the above issues/concerns, this car has been a great car with no service except for gas, oil changes, and replace the bulbs when they go out.

- Cypress, CA, USA

problem #48

Mar 132010


  • miles


The contact owns a 2006 Toyota Prius. The contact stated that while driving at speeds of 30 mph and attempting to make a turn, the vehicle abnormally accelerated. Simultaneously, the power steering failed causing inhibited control of the vehicle. The vehicle proceeded to make a 180 degree turn, and crashed into a pole. The manufacturer was contacted and stated that the process would take a matter of time before they could provide any assistance. The VIN, current, and failure mileages were not available when the complaint was filed.

- Seguin, TX, USA

problem #47

Dec 092009


  • 56,000 miles
The contact owns a 2006 Toyota Prius. The contact stated that on three separate occasions, she had experienced instances of unintended acceleration. She was advised to remove the floor mats from the vehicle but the failure persisted. She confirmed when attempting to pass another vehicle, the vehicle would abnormally accelerate without her intent. The approximate failure mileage was 25 mph. The dealer could not duplicate the failure. The failure mileage was 56,000 and the current was unknown.

- Sparks, NM, USA

problem #46

Feb 192007


  • 600 miles
The contact owns a 2006 Toyota Prius. When the contact first drove the vehicle, he noticed smoke emitting from the dashboard area. The vehicle was taken to the dealer where they advised him that there was nothing wrong with the vehicle and no repairs were made. On approximately twelve occasions afterward, while utilizing the cruise control mechanism, the vehicle would abnormally accelerate without warning. The acceleration would usually occur on a small decline or incline. The vehicle would downshift on its own and accelerate up to 80 or 90 mph. He had to completely disengage the cruise control to prevent the vehicle from accelerating. He did not contact the dealer or manufacturer in regards to the vehicle accelerating. During inclement weather, he attempted to pass another vehicle at speeds of approximately 40 mph. As the vehicle glided over wet snow and ice, the vehicle slid sideways and crashed into a nearby guardrail. The vehicle was destroyed. There were no injuries; however, a police report was filed. The current mileage was approximately 60,000 and the failure mileage was 600.

- Gobles, MI, USA

problem #45

Mar 102010


  • 89,000 miles
Accelerator sticking on a 2006 Toyota Prius. It is not catching on the floor mat, which is the recall for that year. The car has 89,000 miles. This problem just started in the past month. I will start to accelerate, and it will just take off without warning. So far, it has popped loose and returned to normal. Most recent date is listed below.

- Coconut Creek, FL, USA

problem #44

Mar 092010


  • 54,325 miles


For the past several weeks my 2006 Toyota Prius temporarily accelerates after crossing minor road bumps. I do not have a floor mat in the driver's side as Toyota had issued a recall for this model several months ago saying there was a problem with the floor mat causing accelerator problems. This acceleration problem has occurred without the presence of a floor mat.

- Excelsior, MN, USA

problem #43

Jan 212010


  • 47,000 miles
The contact owns a 2006 Toyota Prius. While traveling at speeds of 70 mph with the cruise control activated, the vehicle began to abnormally accelerate. The vehicle then decreased speeds far below the speed in which the cruise control was set, without driver intent. The cruise control was shut off and reset. The vehicle began to exhibit the exact same failure. The failure mileage was 47,000 and the current was 48,000.

- Norco, CA, USA

problem #42

Aug 072007


  • 6,500 miles
Sudden acceleration while driving around a curve on interstate 40 - stopped driving on interstate to avoid problem.

- Little Rock, AR, USA

problem #41

Jan 152010


  • 26,000 miles
Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6) 1, 2. moving slowly into parking space at launderland ([xxx]), our Toyota Prius 2006 leaped out of control, though my foot was hovering over the brake and not touching the accelerator. It hit a wall and damaged the car. Two weeks earlier, the car had also jumped suddenly at low speed but hit nothing. Car repairs to bumper and underlying structures totaled $3135; repairs to the wall totaled $750. (3) nothing was done by Toyota to inspect the accelerator or to insure us that the car was now safe to drive. The car has been sitting on the dealer's lot for about two weeks.

- Santa Barbara, CA, USA

problem #40

Aug 082007


  • miles
2006 Prius acceleration while under cruise control in curves - several occasions.

- Maumelle, AR, USA

problem #39

Jan 182010


  • 33,000 miles
Approaching state hwy. In cruise, assumed stop area would be slippery as it sometimes is in the winter..tapped brakes to disable cruise, applied brakes, kept right on going & ended in the ditch across the hwy. Was lucky that there was no collision.. can't remember if the motor was racing at the time.

- Caro, MI, USA

problem #38

Dec 152009


  • 7,400 miles
My 2006 Prius has on at least 3 occasions has accelerated inexplicably on at least three separate occasions. The first two incidents occurred during my first year of ownership and were reported to the dealer. I was told there was no problem. The most recent event was in December 2009. I was driving down the highway when the car began accelerating rapidly, even after I removed my foot from the gas pedal.. I was able to slow the car down and pull over safely. Please note that at this time, I had already removed the floor mat as suggested by Toyota. Again, I was told by the dealer that nothing was wrong with my car, a response that did nothing to reassure me. I was told in a follow up call to the dealer that Toyota would be doing nothing to assist with this problem.

- Denver, CO, USA

problem #37

Oct 152009


  • miles
I received notification from Toyota some months ago of a floormat/accelerator problem indicating they would contact me when a solution was available. It has now been months with no word. Recently, I contacted them only to get a response concerning a 2010 Prius braking problem. My vehicle is a 2006 Prius.

- Sinking Spring, PA, USA

problem #36

Jan 072010


  • 85,178 miles
2006 Prius was arriving at work and pulling into a parking space. My foot was removed from gas, but accelerator stuck open. The car bounced over the concrete curb, over a snow bank and over a second curb into the university driveway. Car sustained $3800+ in body damage and another $370 in service repairs for brakes, tires, suspension and dash warning systems that erupted. Vehicle was recently repaired. Local dealer would not accept any responsibility or acknowledge any problems with the car. Final repair invoice states the vehicle floor-mats, ABS and pedal stroke sensors were all working properly. Claim was made to our insurance company [erie insurance].

- Annapolis, MD, USA

problem #35

Jan 012010


  • 5,000 miles
I have experienced extreme acceleration when using my cruise control on my 2006 Prius. I have not determined how fast it would continue to go for safety reasons so when it has started to accelerate extremely fast, I would turn off the cruise control so as not to continue to accelerate that fast. I would turn it off as soon as I began to feel out of control with the car.

- Pawleys Island, SC, USA

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