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Electrical System Problems of Toyota Prius - part 1

Toyota Prius owners have reported 749 problems related to electrical system (under the electrical system category).

car image   Electrical System problem of the 2005 Toyota Prius 1
Failure Date: 10/11/2017

The headlights are prone to turning to off randomly, sometimes one side, other times both sides. After turning them on/off at the steering column they will come back on for a while then the issue starts over. This problem occurs with the vehicle either moving or in the stationary mode. No headlights when driving at night is a definite safety hazard. So far, Toyota refuses to honor a fix!.

See all problems of the 2005 Toyota Prius.

car image   Electrical System problem of the 2006 Toyota Prius 2
Failure Date: 10/03/2017

When vehicle is started no dash lights for fuel gage, speedometer, odometer inoperable due to faulty combination meter. No recall just extended warranty that Toyota will not replace.

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car image   Electrical System problem of the 2008 Toyota Prius 3
Failure Date: 09/26/2017

My display has gone black multiple times. Start the car and there is no display, no rear camera. . . . A major safety concern I have found out through the Toyota forum. So I have to go to the back unplug something from my battery - or my wife or daughter. Not safe by any means!! no recall for this fmvss issue. Unacceptable.

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car image   Electrical System problem of the 2008 Toyota Prius 4
Failure Date: 09/16/2017

I am writing to you about my 2008 Toyota Prius. . . The dashboard will go completely out while driving on the hwy when this happens you have no complete dashboard and the ignition will not operate. I have reached out to Toyota and was told my 9 year warranty is out of date and this my problem. . . Very unsafe component to have fail while driving.

car image   Electrical System problem of the 2004 Toyota Prius 5
Failure Date: 09/16/2017

My 2004 Prius's check engine light turns on randomly wnd often and I lose full power of the car. The battery is fully charged. The car stopped 4 times today - lost all power and the brake would not stop the car.

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car image   Electrical System problem of the 2001 Toyota Prius 6
Failure Date: 09/16/2017

The contact owns a 2001 Toyota Prius. While driving 20 mph, the vehicle lost complete power and braking ability without warning. As a result, the contact drove over the median aand crashed into a pole. The air bags deployed. A police report was filed. There were no injuries. The vehicle was towed to the local dealer (titus-will Toyota, 3506 s sprague Ave, tacoma, wa 98409). The vehicle was not declared destroyed. The manufacturer was not contacted. The failure mileage and VIN were unknown.

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car image   Electrical System problem of the 2005 Toyota Prius 7
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.

car image   Electrical System problem of the 2006 Toyota Prius 8
Failure Date: 08/17/2017

I believe its a glitch in the car's computer. At unpredictable and intermittent intervals the electronic heads up display does not operate. This leaves me with no speedomoeter, no fuel level indicator, no bright or dim indicator for the headlights, and the cruise control does not work. During the incidents the car also might not respond to the power off button, so it keeps running. This problem might last for a day or two and then it starts to work again.

car image   Electrical System problem of the 2008 Toyota Prius 9
Failure Date: 07/19/2017

The main display/touch-screen in my Toyota Prius stopped working while it was parked and the engine was off. The device worked in the morning when, but it would not work that afternoon when I re-started my car. The device also stopped working at that same time. As a result, I am unable monitor the hybrid system; access the climate controls (there are some controls on the steering wheel, but, since I cannot see the effect, I am very reluctant to touch them fearing that I will lose what little a/c I have now); the back-up camera; the blue-tooth (for my hands-free cell phone); the navigation system; vehicle maintenance info; etc. I have driven my vehicle since, and now my vehicle flashes the symbol indicating the absence of my key-fob (even though I have it with me in my pocket) unless/until I push the key-fob into its slot in my Prius. As a result, in addition to all of the other things I am no longer able to access, I am now very concerned that my Prius is going to malfunction while I am driving down the road due to its failure now to recognize the presence of my key-fob. In researching this issue, it is apparent that many other Prius owners (several year models) have had similar issues with this device. When I took my vehicle to Toyota to have them repair/replace my device, the asst. Service manager informed me that Toyota did not make the device, that they do not have any replacements, that the manufacturer also does not have any more replacements, and that my only hope was for them to disconnect/remove the device, send it off to a 3rd party to "hopefully repair" my device, and that this process will take up to 2 weeks (while I drive without it). It is inconceivable to me that Toyota is unaware of this problem (since all of their supply and the manufacturer's supply of replacement units has been exhausted). Please help.

car image   Electrical System problem of the 2017 Toyota Prius 10
Failure Date: 07/17/2017

1) the tablet information screen is so large and the instructions so complicated that you have to take your eyes off the road for a long time just to regulate hvac and radio 2) the car goes completely dead randomly after driving it. Must be towed.

car image   Electrical System problem of the 2005 Toyota Prius 11
Failure Date: 07/10/2017

The Prius odometer stopped at 299999 and won't record more mileage. However, the trip odometer continues to register miles, so it seems clear the mechanisms are working to collect miles. The problem this causes is that some states view this failure to move on or reset at 000000 as an inspection failure. Should not be a designed failure, as previous comlaint indicated since this is a digital readout.

car image   Electrical System problem of the 2010 Toyota Prius 12
Failure Date: 07/05/2017

I was driving on the freeway at about 70 mph when the "check hybrid system" light came on and the car lost all power and ability to accelerate. It completely began to descend in speed and within 2 minutes came to a complete shut down. I could have easily been rear ended had I not moved to the side of the freeway as quickly as I did.

See all problems of the 2010 Toyota Prius.

car image   Electrical System problem of the 2008 Toyota Prius 13
Failure Date: 07/03/2017

The main display randomly goes out after starting the car. My Prius was at 82,000 miles when the problem began. I contacted the dealer, central florida Toyota, who informed me it's a bad euc module that controls the display for speed, fuel, what gear you are in and if your head lights are on. All of those items are extremely important when operating a vehicle and if not working could cause an accident. I contacted Toyota corporate on the issue and was provided a case number. They informed me the 9 year out warranty had expired since my car left the lot in Sep. 2007. Toyota corporate nor central florida Toyota would offer any assistance on the part, labor or even proving a loaner car while service was preformed to correct the issue. I was informed from central florida Toyota it could take up to 6 weeks for the part / labor to be completed. Please open an investigation of this part, as research has shown this to be a known bug with the system. Due to the tools this module controls (speed, gears, lights) this could cause a catastrophic accident. Please hold Toyota accountable to keeping their customers safe. As a long time Toyota owner, I am extremely disappointment in their handling of the situation. I will be happy to provide any information needed to help correct this issue for all Prius owners that have or have had this issue with no assistance from Toyota.

car image   Electrical System problem of the 2005 Toyota Prius 14
Failure Date: 06/24/2017

Car headlights will intermittently go off during nighttime driving. This issue has occurred on multiple occasions.

car image   Electrical System problem of the 2006 Toyota Prius 15
Failure Date: 06/11/2017

Afternoon 07/11/17 while driving downhill @ 50 mph my 2006 Toyota Prius turned off- no steering, exterior lights, dash/computer lights, radio- except for front interior dome light. No warning lights prior to or after car turned off. I was able to brake (very stiff brakes) & pull over. Replaced 2015 12v battery hoping for quick fix. Car still would not turn on, could not be towed on flat bad for fear of damaging transmission. Car was towed to closest mechanic. On 07/12/17 independent mechanic said both coolant pumps failed and the leaking shorted a fuse and turned off the car. Every time they attempted to replace fuse it would pop fuse again. Mechanic replaced water pump (including coolant/antifreeze) & inverter electric pump (including inverter cooler water) & changed auto transmission fluid & filter ($1,115). Early morning 07/14/17 dash display would not light up when car was turned on- no speedometer, odometer, gas gauge, reverse camera. (happened couple of times in past but could not duplicate for dealer. ) while driving to Toyota dealer I noticed computer screen stuck @ 48 mpg & 61 miles driven, but never increased miles as I drove 18 miles or updated mpg calculation. Refused to turn off car until someone from Toyota dealer looked @ dash to verify condition. Toyota dealer says combo meter (combination meter) failure, which is not recall but "campaign" that expired & repair costs $1,111. Motherboard part can take up to 3 weeks but car cannot be driven while Toyota "burns" my computer's information into new computer part. Toyota dealer provided loaner car until repair is completed. On 07/14/17 called Toyota & filed complaint about water pump & combo meter. Toyota says hybrid electric water pump campaign did not affect my VIN, which I do not believe. Toyota says combination meter campaign expired for my VIN. Pending call back from Toyota at this time.

car image   Electrical System problem of the 2011 Toyota Prius 16
Failure Date: 06/09/2017

Dash board keeps beeping, yet I have replaced the key battery 3 times and now dealer says key not detected, yet car runs so the key is detected but the beeping will not stop. Took to dealer paid 89. 99 for diagnostic per dealer. Dealer now says the left harness needs replaced for $1802 plus tax. I feel manufacturer should allow consumers who bought there product be given information about history of faulty electrical wires even when it is not a safety hazard. Just turn off the beeping noise if that is the only issue. Mileage 58847. . .

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car image   Electrical System problem of the 2008 Toyota Prius 17
Failure Date: 06/05/2017

Faulty combination meter, which displays car speed, odometer, fuel level, and turning off the car. Toyota extended their warranty for 9 years but won't fix the known issue anytime past 9 years. Mine failed 9 years 2. 5 months. Toyota customer service said that they have replaced a whooping 669,000 combination meters.

car image   Electrical System problem of the 2006 Toyota Prius 18
Failure Date: 06/05/2017

The passenger side headlight intermittently turns off and on. The lightbulb is still functional. This will happen wether I'm driving or stationary.

car image   Electrical System problem of the 2007 Toyota Prius 19
Failure Date: 05/25/2017

The dashboard went black with no visibility to speed, fuel tank gauge, or other instruments in this panel. Also, car would not power off. The instrument panel went dark while I was driving on a city street. The engine power down problem occurred in my driveway upon my return from my city use.

See all problems of the 2007 Toyota Prius.

car image   Electrical System problem of the 2014 Toyota Prius 20
Failure Date: 05/10/2017

Electric burning smell emanating from front of car smell coming questionably through air ducts which comes/goes and is noted upon starting car and for five minutes duration after start. Increase incidence of burning smell on days when ambient air temperature is 90 or higher. I wonder if I am inhaling toxic fumes . Will consider report of problem to the epa. Checked by pohanka Toyota in early summer "could not duplicate smell problem" no follow-up. Report made to Toyota motors per email and to representative as well at Toyota. Stated " we will report your issue to the administration; "no recommended follow-up. Internet search indicates there are several models of Toyotas with similar complaints. It is about time there would be a recall and something done about this block below asking when did this happen is forced choice for date(so not accurate reflection of the problem); this has been happening on/off since may 2017 s. I did inform the Toyota rep by phone that I would file a complaint with my state attorney general's office and the better business bureau.

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car image   Electrical System problem of the 2005 Toyota Prius 21
Failure Date: 05/04/2017

During charging the vehicle caught fire during the process distroying vehicle vehicle was stationary.

car image   Electrical System problem of the 2010 Toyota Prius 22
Failure Date: 05/01/2017

Airbag warning light illuminates. Toyota service techie's diagnostic showed a disconnected spiral cable. Techie explained that the spiral cable has electrical connections to the driver's airbag module and the driver's air bag would not deploy in an accident. He said I should install a new cable spiral assembly kit (aka "clock spring"), part # 8430747020 at a cost of nearly $1000, including over $700 for the part. I did some research. Part # 8430747020 was installed in many Toyota vehicles, and has been recalled for the same problem in the corolla, matrix, highlander, tacoma, rav4, and yaris. See safety recall e0m (e1m) April 2015, update 5/12/14. The Prius is not mentioned in the recall, although my car has the same exact problem with the identical part, and the Toyota service supervisor agrees it is the same problem and part. I explained this to the service technician and supervisor, who called Toyota, and Toyota offered to cover 50% of the cost of the part, and none of the labor cost. I asked whether they could do the same fix in my car as they do on the recalled vehicles, namely installing part # 04004-07122, and they declined. See technical instructions for safety recall e0m spiral cable replacement. Toyota should be recalling my car and fixing this problem at their expense, not just reducing the cost of the part. Second, they should not be replacing this defective part with the same defective part. They should do a fix that will last. I assume the fix they've done on all other vehicles, with part # 04004-07122, would work for my Prius. They refuse. Fyi- the airbag light has been on and off for years, and seen by Toyota during that period. This particular problem was diagnosed may 1, 2017. They believe the previous airbag warning lights were unrelated to this particular issue.

car image   Electrical System problem of the 2008 Toyota Prius 23
Failure Date: 05/01/2017

Pasdanger headlight goes on and off without cause and at will.

car image   Electrical System problem of the 2015 Toyota Prius 24
Failure Date: 05/01/2017

I backed out of a carport and placed my car in acceleration and it picked up speed and then hit a wall at an apartment complex.

See all problems of the 2015 Toyota Prius.

car image   Electrical System problem of the 2008 Toyota Prius 25
Failure Date: 04/17/2017

When vehicle is turned on, instrument cluster also known as the combination meter, fail to turn on. This issue is very concerning due to the overall computer controlled functions of this vehicle. The speedometer, trip meter, odometer and other functions are not functioning due to the failure of the combination meter. Functions that are considered safety items such as the power brakes, power steering, anti lock brake system, speedometer, lights, etc. There is an issued warranty covering the issue up to a certain amount of time however since it is not a wear and tear item it should be covered by the manufacturer regardless. After vehicle is eventually ignited, combination meter does not illuminate and when attempting to turn off the vehicle, it fails to do so which also includes not being able to remove the key. I was advised by a Toyota mechanic to access the safety override by holding the power button however that procedure does not work all of the time. I am very concerned about this issue due to my safety and drivers around me and their safety and hopefully this issue can be avoided before a possible a catastrophic accident happens.

Other Common Electrical System related problems of Toyota Prius