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.
This happened twice. The first time I was driving 40mph, the check engine light came on and then the accelerator stopped working. Then the check hybrid system light came on and I guided the car over to the side of the road. The car would start but the accelerator would not function and the (digital) speedometer numbers disappeared. I brought the car to the dealership where they replaced a valve and told me it was fixed. Two days later (after driving the car without incident on several trips for at least 40 miles) the same exact thing happened, however this time I was travelling 50 mph while entering a very busy highway during rush hour.
The vehicle's fuel guage became stuck causing me to run out of fuel on a busy highway almost resulting in an accident. An attempt to refill the tank was only minimally successful in that only 3 gallons were accepted by the tank.
I was driving approximately 35 mph and all of a sudden the car stalled and stated, "check hybrid system". stopped the car right away called my insurance company for emergency road service and had the car towed to a Toyota facility where they diagnosed the problem as a failed inverter, which is part of the hybrid system. This is a safety issue and must be addressed. If I had been on a freeway or in heavy traffic, I could see this being a very dangerous scenario.
Toyota release a recall for 2010 to 2014 Toyota Prius. Recall was made to affected Prius models to rectify software in two of the Prius's electronic control units, one for the motor/generator and the other controlling the hybrid system.I took my car to the dealer to have the recall done, here is where my problems started, I saw a drop on mpg from 52 to 44. I waited hoping it just needed to reset, so after driving more than 10,000 miles, mpg still did not come back. I had this car for more than a year and commute has been the same. Other Prius owner has raised the same concerns as noted in priuschat.com/threads/who-has-done-their-recall.137632/ I taken my car back and they can find anything wrong with and that 44mpg is ok. Having a recall mess up with the performance and not bee told so is no good business.please help.
Accelerated to get on highway. Once on the highway the system hybrid warning light and other warning lights and audio alarms came on. We had to exit immediately because we lost the ability to maintain highway speed.
- Bel Aire, KS, USA
Search CarComplaints.com for these popular complaint phrases...
I am writing due to having had my 2010 Toyota Prius self accelerate while driving on four occasions. This began occurring after I took my vehicle to Toyota of clermont, Florida for a routine service on 3/31/2014. While the vehicle was there, the dealership also performed a recall on the vehicle. This recall is referenced as: Tech(s) : 20799 recall eoe motor generator and power management update perform software update for mg ECU and power management ECU agg09A 0.7 as of 8/5/2014 my vehicle has had unintended acceleration on 4 occasions. In 3 of the 4 I know it has occurred as I released the brake. This release is confirmed by the fact that it is necessary to reapply the brake to stop the acceleration. The 4th occurrence may also have occurred after a brake release. I have attempted to resolve this problem via both my local Toyota dealer and Toyota customer experience center at 1 800 331-4331. I am being told the problem is operator error. I have done the research to see if this is even possible. For me to apply the brake and fuel simultaneously would be both extremely difficult and very obvious. Additionally if this diagnosis were correct the vehicle would stop accelerating when the brake was released. In fact the vehicle accelerates when the brake is released not while the brake is depressed.
After driving for a combined time of 4 hours in a 5 hour period, my wife left a store she visited off zebulon road and I-475 near macon ga. When attempting to re-enter southbound I-475 the car failed and would not accelerate. A few seconds after the drive system shut down and would not restart. The dash indicators said check hybrid power system. The car was towed to a dealer rogers Toyota in macon ga, where it now is. The dealer says that the problem was the engine control module though the inverter is being replaced under an existing recall issued last week. It is not clear if the engine control module is covered by the recall.
I was driving with the flow of traffic (around 30 mph) on a main surface street in a middle lane of a multilane street when suddenly the engine stopped, and I was unable to make the engine respond. The car immediately began to slow down; I could not make it accelerate to keep in the flow of traffic. I managed to carefully drift over to the right and maneuver through an intersection and glide to a stop on the right side of the road. I turned off the engine and repeatedly tried to restart it to no avail. I called for towing service and had the car towed to my Toyota dealer, where the service people said it was an "internal failure" and replaced the inverter assembly. What has terrified me is that I could have been on the freeway driving at least 60 mph, where the consequences would be devastating to me and others. I asked if Toyota would be reporting this to the NHTSA, and they said that was an internal determination. I asked if this had happened before to others and did not receive a clear answer.
On Monday February 24th 2014 my 2010 Toyota Prius, hybrid inverter failed while I was driving and my car suddenly stopped on the road. I looked on the instrument panel and the check hybrid system was illuminated. The car would not start. I decided to call a toll truck company to take me to the nearest Toyota dealer. Once I arrived the service advisor informed me, the 2010 Toyota Prius has two active safety recalls. I was never notified. The two safety recalls are the hybrid inverter & brake booster pump assembly. Today is Thursday February 27th 2014 and the Toyota dealer has failed to repair and return my car. The Toyota dealer stated this is a safety recall, they need permission from Toyota headquarters to approve parts. I pleaded with the Toyota dealer to provide me with a vehicle, while I wait, they refused.
While carefully parking my Prius 2010 at a hospital it accelerated suddenly and crashed over the cement curb. I say carefully because my Prius had done this before but not enough damage was done to file with insurance. There followed another accident and another accident. Then this evening while driving into my carport my Prius accelerated again. It threw my dog that was in the front seat to the floor but I was able to avoid car damage as I was going to stop. I was barely moving, that is I still had my foot on the accelerator, maybe I could say coasting, when this acceleration suddenly occurred. This was the same type acceleration that caused all the prior accidents. I have reported this to Toyota... and now you. Hopefully you will help me. My Prius is in the carport. It has not been moved. However, it is my only transportation. My Prius' latest happening, before the one just stated, the hybrid system quit working during rush hour traffic on the interstate near a busy intersection. This was repaired before Toyota sent some one to investigate the prior accidents. If more information is needed just let me know. This Prius also had a battery replaced shortly after it was purchased as a new vehicle. This Prius has wheel rim scratches.
Driving on the highway in albany, NY area, slowed down to go through tollbooth as I began to accelerate to continue on highway, check hybrid light came on and engine abruptly stopped. I was able to coast the car from left lane over to the breakdown lane. Turned off car and was unable to restart. Toyota dealership found that the power inverter had failed and needed to be replaced. Error codes listed by dealer: P0A94 DC/DC converter performance.
The contact owns a 2010 Toyota Prius. The contact stated that the fuel sensor unit malfunctioned and caused the vehicle to stall while driving 65 mph. The vehicle was towed to the dealer, who diagnosed the vehicle has having a faulty fuel sensor gauge. The dealer replaced the fuel sensor gauge. The failure mileage was 54,047.
While driving at ca. 20 mph a sudden jolt and clunk occurred and the car was stalled. Various dashboard lights came on, and the dash displayed "check hybrid system." Towed to a Toyota dealer, the problem was stated to be a failed inverter-converter that needed to be replaced.
Our 2010 Prius suffered a near total power failure on 5/10/13 when the car suddenly and without any advanced warning, lost power decelerating from about 35 mph to about 4 mph in less than 5 seconds. Every idiot light came on at once on the dash panel and a "hybrid system failure" notice came up on the alphanumeric display. Luckily, I was on a city street and not the highway when this happened. I was able to get the car safely off to the side of the road and call for a tow. Our Prius has approx. 44000 miles on it, is regularly maintained at the dealer, not mistreated in any way and gave no advanced warning indication that there was anything wrong with the electrical/propulsion system. The car lost almost total power, limped about 50 feet past parked cars and just died at the curb after I put it in park. It would light up across the dash, but never start the engine. We have had this car about 36 months. As this is my wife's car, I am greatly worried about the safety of the car and having this problem happening again, especially to her at high speed, multi-lane highway driving. It has been repaired at a local Toyota dealership. They installed a new 12V battery and eventually the main fix, a inverter/converter. The car now runs like day one. However, how do we trust this car in the future if it did not give any warning of imminent propulsion failure ? I am getting nowhere with Toyota about their providing some kind of advanced warning to get the car onto the shoulder of the road and keep it running for about 1 - 5 minutes. Thank you
The incident occurred when I attempted to accelerate onto a two-lane highway. Because of a slow and sharp U-turn which precedes the short on-ramp, I disabled the eco mode for better acceleration. When I pressed down on the gas, the car immediately emitted a loud sound, became unresponsive and was unable to gain additional speed. Even so, there was no other option but to merge onto the roadway while doing no more than 30 mph. In the meantime, the instrument panel showed a "check hybrid system" message along with several warning lights. I managed to avoid oncoming traffic (from behind) and safely pulled onto the grass. Attempts to restart the vehicle were unsuccessful with the previous message reappearing each time. The car required a tow to the nearest Toyota dealer. I received a call from them the next business day, and they explained the cause to be a defective inverter based on the diagnostic code. Fortunately, the repair will be covered under Toyota's hybrid warranty. It remains to be seen and I am hopeful this repair will fully resolve the issue.
A D V E R T I S E M E N T S
- Brookline, MA, USA