general problems of the 2005 Toyota Prius

24 problems related to engine and engine cooling have been reported for the 2005 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Prius based on all problems reported for the 2005 Prius.

1 Engine And Engine Cooling problem

Failure Date: 02/14/2026

Eingen faliur acording to dealership Toyota of anthioc the veicle is on there lot for now but there diagnostic was engine faliure.

2 Engine And Engine Cooling problem

Failure Date: 04/01/2021

Car stopped accelerating/ engine died while driving at 20-30 mph exiting holland tunnel. Coasted, then braked to stop, pulling over to shoulder. Turned ac off. Red warning light on. Ac warning light? pressed park button. Press power button to turn off car. Waited 5 sec and then pressed power button, keeping ac off , and resumed accelerating.

3 Engine And Engine Cooling problem

Failure Date: 04/03/2018

2005 Toyota Prius. Consumer writes in regards to red and white service light indicator. The consumer inquired about an ad to have to the vehicle be at no cost.

4 Engine And Engine Cooling problem

Failure Date: 08/22/2017

Toyota Prius combination meter not working for 2 days when I repeatly turn it on and turn it off. . . . Then works one day then is not working now---I can't see the instrument panel and how fast I am driving and then I can not shut the car off for several minutes. . . . Very unsafe. And I just had the car serviced for a messed up battery. This is a used car that I bought to replace the 2001 Toyota Prius that was rearended in Dec 2016 then the dealer sold me a junk car in April 2017 now having to fix all these problems. I will sell this car as a piece of junk to the junk yard as strap metal because that what it is. Very unsafe and the NHTSA is allowing this to happen. Started on 08/22/2017 & 08/23/2017 & 08/25/2017 I can't see the panel.

5 Engine And Engine Cooling problem

Failure Date: 08/19/2015

Tl- the contact owns a 2005 Toyota Prius hybrid. The contact stated that he was hand washing the car when he noticed 2-3 drops of water entering from the passenger's side front window. The window was closed at the time of the failure. Additionally, when the vehicle was started he noticed that the instrument panel failed and would not illuminate. The contact then engaged the push-to-start button with the brakes applied to shut off the vehicle but to no avail. The contact then shifted into park and attempted to exit the vehicle when the vehicle abnormally accelerated. The contact was knocked to the ground by the driver's side door and sustained minor injuries as a result. The dealer was contacted and advised him that the instrument panel computer needed to be replaced. The dealer failed to perform a diagnostic to determine the cause of the electrical failure or the acceleration failure. The dealer also advised the contact that the manufacturer extended a warranty to cover the failure but the contact's vehicle was over the mileage limitation by 4,000 miles. The vehicle was not repaired. The failure mileage was 174,000. The VIN was not available. Kmj.

6 Engine And Engine Cooling problem

Failure Date: 07/19/2015

Car started skidding on the road, couldn't take control because car started to speed up and then rammed into the concrete barrier, spun around and ended up facing oncoming traffic. Luckily, there wasn't any car right behind me and I managed to push open the driver's side door although it wouldn't open completely and opened just enough for me to squeeze through and ran out of the car. At no time did the airbag open up at all. I was lucky that I sustained no major injury except for a badly knocking my left knee on the dash. My question to Toyota would be why the airbad didn't open! what if another car had hit mine and I wouldn't have been protected by the airbag!.

7 Engine And Engine Cooling problem

Failure Date: 01/09/2014

Failure of engine throttle controls: sudden rapid acceleration, un-commanded, which terminated quickly after applying the brakes.

8 Engine And Engine Cooling problem

Failure Date: 02/25/2013

The three way coolant control valve failed.

9 Engine And Engine Cooling problem

Failure Date: 09/01/2012

My Prius dash keeps going black, the car won't shut off . Also had it in park engine revved and started to drive away. I jumped in and it wouldn't shut off I had to rip the key out. The rear taillights go out all the time. The doors and hatch locks won't unlock half the time. I had a new battery put in but it still happens.

10 Engine And Engine Cooling problem

Failure Date: 01/19/2011

Incident = on 1/19/11 my 2005 Prius began to shake while driving on surface streets. I pulled over checked the car but saw nothing that would cause the shaking. I then started the car and began to drive. The shaking started again like an unbalanced washer. I took the car to hollywood Toyota. Toyota checked the car and indicated that 2 spark plugs had gone bad and that 2 ignition coils had shorted out. As a result the engine had carbon deposits and needed extensive cleaning. I have done all scheduled maintenance to Toyota specification.   as a result I contacted Toyota's offices to voice safety concerns. Were there any other similar reported incidents and do they consider any safety issues. Didn't get a clear answer at all from them. Toyota once again is in denial with Prius problems. Damage resulting = cost was $989. 81. I feel that Toyota needs to reimburse me for these repairs. Had this happened on the freeway results could have been different. I complained to Toyota and they have offered me $348. 10 off the total work. Its not just a money issue its a safety issue as well.  .

11 Engine And Engine Cooling problem

Failure Date: 01/19/2011

The contact owns a 2005 Toyota Prius. The contact was driving approximately 25-30 mph when the vehicle began to shake abnormally violent. The contact inspected the vehicle but could not locate a cause for the failure yet the failure persisted. The vehicle was taken to an authorized dealer where the contact was advised that two spark plugs had failed, two of the ignition coils had shorted out and that carbon was built up on the engine as a result of the failure. The dealer replaced the spark plugs, ignition coils and cleaned the carbon from the engine. The vehicle was repaired. The failure mileage was 78,646 and the current mileage was 78,746. Updated 03/02/11.

12 Engine And Engine Cooling problem

Failure Date: 11/09/2010

The contact owns a 2005 Toyota Prius. While driving 65 mph the vehicle suddenly shut off. The vehicle was towed to the contacts residence. The contact called the manufacturer who advised him to take it to the dealership for diagnostic testing. The vehicle was not inspected or repaired. The current and failure mileages were approximately 187,000.

13 Engine And Engine Cooling problem

Failure Date: 05/20/2010

I drive a 2005 Toyota Prius. My car has 26,000 miles on it; which is very low mileages. While I was on the highway, my car`s lights on the dashboard starts to flash. The brake system warning light and buzzer comes on along with the abs warning light and the malfunction indicator lamp. I had nowhere to pull aside. After two minutes the warning signs shut off so I kept driving. Five minutes later, all the warning lights come on so I decide to get off the highway to take it to the knoxville Toyota dealer. As I`m exiting the highway, I immediately realized that I had no breaks (when I pressed the brake pedal with my foot it automatically touched the ground)! I remembered that my dad always told me that in case of a brake emergency to pump the paddle until the breaks work. I almost crashed into another car; the exit ramp was very steep. I was going about 50 miles per hr by then; luckily I managed to stop while I kept pumping my breaks. I took it to the dealer right away. They checked my car and replaced: pump assy. Water, super long life c, inverter coolant pump, sliding yoke, reflashed engine and hv ecu and shaft kit. Steeri. I found my case very dangerous and my life was at risk. Not only was my life at risk but as well as other individuals. I would hate for this to happen to someone else! it was scary and I felt like my life might have been over.

14 Engine And Engine Cooling problem

Failure Date: 10/20/2009

I have a 2005 Toyota Prius with 255k miles. I service my car regularly (about every 5 weeks). When I started my car after work, none of the dashboard lights came on. I put my car in drive and the car moved forward. I drove my car about 60 miles and stopped by the store. I became alarmed when the car wouldn't shut off. I pressed the "power" button several times but the car would not turn off. I drove the car to the stafford Toyota at approximately 7:30pm and requested assistance from the sales manager (since the service department was closed). The sales manager confirmed that the car was not supposed to operate without the dashboard lights because there was no way to determine if the car was on and whether the car was in park, reverse or drive. After numerous attempts of holding down the "power" button, the car finally shut off. When I restarted it, the lights still did not work.

15 Engine And Engine Cooling problem

Failure Date: 05/23/2009

The contact owns a 2005 Toyota Prius. While driving 55 mph the mass air flow sensor failed causing the vehicle to shut off. The contact towed the vehicle to the dealer to have the mass air flow sensor replaced. The abs warning lights also flashed on the dash board causing the brakes to fail while driving 40 mph. The contact drove the vehicle to the dealer to have the abs brake actuator replaced. The failure mileage was 18,461. Updated 11/10/10 updated 11/18/10.

16 Engine And Engine Cooling problem

Failure Date: 03/29/2006

I was involved in an accident with my 2005 Prius on 3/29/2006. The cause of the accident remains a mystery. I was sitting at an intersection, waiting for traffic to clear. Witnesses reported that I pulled out into the oncoming traffic, resulting in a collision with another vehicle. Due to the injuries I suffered (a minor concussion resulting in retrograde amnesia), I had no recollection of the period prior to arriving at the intersection up until the paramedics removed me from the vehicle. As such, I can't explain exactly what happened. While I have no proof of this, it seems that a possibility would be an issue with the stuck accelerator that's being reported relating to the Prius. I've been at a loss to explain why I would have pulled out in front of oncoming traffic at an intersection that I was very familiar with. When I heard of the acceleration issues with the Prius, I wondered if that could have been the cause. Since the vehicle was totaled, it's no longer available for inspection. I thought I'd submit this report to add to the suspected cases of accelerator issues.

17 Engine And Engine Cooling problem

Failure Date: 12/09/2005

I took my Toyota Prius in for the recall noted in pe05029 and since have lost 8 miles per gallon in performance. I contacted Toyota customer service to let them know and asked if they could tell me if other customers were experiencing the same problem. The reply was that customer service information is proprietary and that they would record my complaint but could give me no further information. I am not sure the car would still meet the epa mileage rating originally given.

18 Engine And Engine Cooling problem

Failure Date: 10/31/2005

Toyota Prius; driving on interstate 287 in new jersey when the engine cut out and would not restart.

19 Engine And Engine Cooling problem

Failure Date: 09/05/2005

Possibly relevant to current Prius software reliability investigation number : pe05029 I spoke to gilles labelle of westboro Toyota in westborough massachusetts regarding the Toyota Prius (this was a pre-sales conversation; I do not at present own a Prius though until this conversation I was very close buying one; now I find myself taking a step back to ensure I've done my own due diligence). He mentioned the use of a reset sequence to "reboot" the car in the event of problems as a way to avoid the need to have the car serviced; I asked him how often he had to reboot his own Prius; he didn't answer directly but instead said that he had helped about 100 customers through the reboot process. I am a operating systems software engineer by profession and was alarmed at this "just hit reset" attitude towards systems failures; ideally crashes in the field should be rare enough that each one can be root-caused, rather than shrugged off.

20 Engine And Engine Cooling problem

Failure Date: 07/22/2005

Purchased 2005 Toyota Prius - VIN # jtd kb2 ou1 530 793 29 on July 20, 2005 -registered it to my wife krista gottlieb. On July 22, 2005 when this car had about 80 miles on it, I was driving it on the highway in traffic at about 50 mph - when suddenly I lost complete power. By that, I mean that the accelerator pedal was completely unresponsive. I am not aware of what the instruments indicated as I was preoccupied with the traffic (for more details - I sent a very detailed e-mail about the failure to our dealer culligan Toyota, amherst, NY on July 24, 2005 - I have also sent additional follow-up e-mails to culligan since that date. ). As a result of the July 24 message, I arranged to leave the car with culligan Toyota service advisor stephen desotell on Wednesday, July 27, 2005 to be checked out. At about 3:00 p. M. On July 27 stephen called me to tell me that they had checked out the car and could find nothing wrong with it in any way ã‚ mechanical or computer or anything. He said that it had the latest software and that there were no outstanding service bulletins of recalls for the car and that in his discussion with Toyota, it was suggested to him that I must have inadvertently hit the ã‚powerã‚쳜 button on the dashboard - or words to that effect. Subsequently I tested the car and found that I could not turn off our Prius by deliberately pushing or holding the power button in. By call to the above service advisor since then, he later confirmed that this was correct - that it was not possible to accidentally or deliberately shut any Prius down by hitting the power button while the car was in motion under power. We have had no repeat of this event. However, the failure happened to us in heavy traffic when I was in the passing lane with traffic on my right and oncoming traffic on my left and a high-speed car approaching me from the rear - and I had nowhere to steer to! it was very frightening and we could have been hit from behind.

21 Engine And Engine Cooling problem

Failure Date: 07/11/2005

2005 Toyota Prius, when coasting at high speeds, the engine cuts out so it is impossible to accelerate.

22 Engine And Engine Cooling problem

Failure Date: 06/10/2005

I was driving 20mph when a red alert light came on the screen on my Prius; it said gps underneath it so I ignored it, thinking I would be ok since I did not need my gps system. I sped up to about 30mph and suddenly was not able to accelerate although I was pressing down on my accelerator. I came to a stop at the traffic light on a green; luckily there was no collision. The electric mode remained intact for the next 2. 5hrs untli the car was towed so I could still turn the car on.

23 Engine And Engine Cooling problem

Failure Date: 06/02/2005

While driving 2005, Toyota Prius hybrid at speeds between 15-20 mph on a 2 lane road the engine died. After a short time it did restart.

24 Engine And Engine Cooling problem

Failure Date: 12/14/2004

I was driving the vehicle to a gas station on a major road when the engine died and the vehicle shifted to battery power. I was able to get to the gas station and it was clear I had not run out of gas. The vehicle has been fine since so I didn't think about it until the media reports came out.



Prius Service Bulletins
Prius Safety Recalls
Prius Defect Investigations