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Electrical System Problems of Toyota Prius - part 1

Toyota Prius owners have reported 561 problems related to electrical system (under the electrical system category).

car image   Electrical System problem of the 2005 Toyota Prius 1
Failure Date: 04/28/2015

I am currently experiencing troubles with my front passenger headlight. The problem first occurred about a year ago (Jan. 2014) when I purchased the car used from a car dealer in tysons corner va. I took the car back within days of noticing the light kept going out and asked them to repair the issue since I had just purchased the car. They did so and said that it was most likely a faulty light and replaced it. It is a little over a year now and the same light is going out again. What is happening is that when I turn the car on and turn on all of the car lights to drive it at night, they turn on, but about 15-20 minutes down the road and unbeknownst to me, the right passenger light goes out. Because of the shape of the car, you cannot tell that it is out. The only reason I knew it was out again was because I got pulled over and given a ticket. This is extremely unsafe and I have read a number of similar occurrences online. I took the car to the repair shop and they have said (after looking online) that the issue is the "headlight light control ecu sub-assembly". Because of the safety risk this posses to the driver and others on the road, not to mention the cost of the single item to repair it, Toyota should make appropriate financial accommodations to those having this trouble. Normal ware and tare on the vehicle is reasonable, such as burt out lightbulbs but systems like this that work for a couple days and then suddenly do not is not safe.

See all problems of the 2005 Toyota Prius.

car image   Electrical System problem of the 2005 Toyota Prius 2
Failure Date: 04/19/2015

Bought one-owner 2005 Prius 11-26-2014 after paying for a pre-purchase inspection at a Toyota dealer showing complete service record including all recall campaigns. 4-19-2015 without warning on the expressway, the entire 'combination meter display' simply turned off, leaving the car running in the blind, no gauges/meters/guidance of any kind. The car continued to operate and I drove directly home and parked it. Internet search revealed that this as a known safety issue by Toyota affecting 2004-2009 Prius models. Toyota issued a 'warranty enhancement-ztv' and warranty policy bulletin (bulletin no. Pol12-05) to effect the necessary safety repairs, but only applies if one discovers (meaning suffer the panic of having the entire panel go blank) the issue before either '9 years with no mileage limitation or before September 30, 2013', whichever is longer. In our case, it expired just before our pre-purchase inspection/purchase of the Prius and the dealer indicated/Toyota confirmed that this is not something that a Toyota dealer service department could have discovered through Toyota records. Instead, the owner has to wait for the failure to occur. In our case, Toyota corporate, with full knowledge of this safety defect, said our joint 'plan of action' was (a) if the display does not illuminate, under no circumstances drive the car, and have it towed to the Toyota dealership for necessary repairs, or (b) if the display illuminates, immediately drive it to the Toyota dealership for necessary repairs, but that (c) Toyota would 'decline to further participate or contribute' to the repair. This should be a mandated, required safety recall; by its own measure, up to 669,000 Prius models may be at risk to this known defect, yet Toyota refuses both the recall and the repair. How many out there are ticking time bombs?.

car image   Electrical System problem of the 2008 Toyota Prius 3
Failure Date: 03/21/2015

The left headlight keeps turning itself off when driving or not. When bumped next to the headlight cover it comes back on. The bulb and connector are fine. This is a safety hazard, that if the right one starts doing the same thin at night, it would put me into a dangerous and life threatening situation. I think Toyota should have a recall on this problem.

See all problems of the 2008 Toyota Prius.

car image   Electrical System problem of the 2013 Toyota Prius 4
Failure Date: 03/16/2015

Tl-the contact owns a 2013 Toyota Prius. The contact stated that while driving at approximately 20 mph, the vehicle stalled without warning. The failure recurred twice. The vehicle was taken to a dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileages was 21,934. Djr.

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car image   Electrical System problem of the 2007 Toyota Prius 5
Failure Date: 03/01/2015

Tl-the contact owns a 2007 Toyota Prius. The contact stated that while driving approximately 60 mph, the lighting on the instrument panel became deem without warning. The contact pulled over and powered the vehicle off and back on and the lighting was normal. The failure recurred on several occasions. The vehicle was not taken to the dealer. The manufacturer was not made aware of the failure. The approximate failure mileage was 93,000. Pam.

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car image   Electrical System problem of the 2007 Toyota Prius 6
Failure Date: 02/24/2015

I started my car and as I was driving noticed no instrument lights on dash. I tried turning engine off (2 step procedure) and was unable to stop engine, unable to remove keys. I was stuck with a car that was running, an inability to lock the car because it did not recognize the commands. I tried calling the closest dealership and was passed from one person to another without answers as to what to do. I then called the dealership where I had purchased the car and they were able to tell me how to get the engine off - and they said there had been a recall on the instrument cluster. I had not been notified. I regularly have my car serviced at the dealership - as recently as 3 weeks ago.

car image   Electrical System problem of the 2006 Toyota Prius 7
Failure Date: 02/16/2015

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.

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car image   Electrical System problem of the 2005 Toyota Prius 8
Failure Date: 02/06/2015

Left headlight will intermittently go off. There have been a couple of instances where both lights have gone off on the highway at night.

car image   Electrical System problem of the 2010 Toyota Prius 9
Failure Date: 01/11/2015

The dash display mph and mileage totally went black. Looked it up on the internet and seems like it is a common problem for the 2010 Toyota Prius. Sounds like Toyota use to cover this before this year model, but not now, even though it is still happening. They may have done their dash alittle different, but it is still having the same problem.

See all problems of the 2010 Toyota Prius.

car image   Electrical System problem of the 2005 Toyota Prius 10
Failure Date: 01/08/2015

Driving after dark, temp 12 f, dashboard light went black on area behind steering wheel. Upon arriving at destination, vehicle took several attempts before it turned off. Car was taken to Toyota dealer. I suggested this problem may be on a recall for the multi system light in the dash. After 2 hours Toyota did not address the "recall" issue and diagnosed loose batter cable. Car performed normally. Next morning the car started and dashboard lighting came on as per usual. End of day when temp dropped dashboard went black again and the car was difficult to turn off at end destination. Toyota dealer was called immediately (Sunday) left message. Called again next morning after 10am no call received from dealership.

car image   Electrical System problem of the 2009 Toyota Prius 11
Failure Date: 01/05/2015

When my 2009 Toyota Prius goes over 65 mph the problem light flashes on the display and the the engine oil light illuminates as well.

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car image   Electrical System problem of the 2008 Toyota Prius 12
Failure Date: 12/26/2014

Our car was exhibiting a serious defect that Toyota has already found and documented on their site, saying that they are doing an extended warranty to correct the problem. However, they have grossly mismanaged this extended warranty by not providing the part at all or perhaps at some far future time (we still don't know when we will get our car back, perhaps months or never). When word gets out that customers who bring their car in to get fixed have no idea when they get their car back, they will instead keep driving the car with the highly dangerous defect. The defect is the combination meter, which controls the dashboard indicators. When it goes down, none of the dashboard indicators work and the driver does not know what gear he or she is in, how much gasoline is in the tank, what speed the car is going, etc. These are the cars that Toyota is leaving on the road because they are yet again incompetently managing a safety defect. This could lead to serious injuries and deaths. I spoke to lisa at Toyota today (January 5, 2015), and, based on the conversation, Toyota could care less whether this is handled right or not. She did not seem the least bit alarmed, and indicated that their course of action was to do nothing. The dealer ordered the part last Monday, but, according to the dealer, Toyota's tracking of this part is completely disorganized. Toyota has no idea when it went out and is ignoring the tracking information provided by the shipper (apparently ups) so the customers have no idea when they get their cars back. Customers are not given loaner cars. If they turn their cars in to be fixed, they cannot go to work. Therefore, they will drive with the dangerous defect. Also, car owners are not being notified of the defect. They only find out the hard way, perhaps right before an accident.

car image   Electrical System problem of the 2007 Toyota Prius 13
Failure Date: 12/08/2014

Vehicle does not properly start-up and ends up in a state where it cannot be turned off. I pushed the ignition button, which normally quickly turns green and normally the car would start. Instead, the car goes into a state where the dashboard illuminates, an error icon is displayed, and the power cannot be turned off. I hold down the power button for over 5 minutes before the car finally turns off. During this time, the power button is amber, the dashboard does not show the car is in any gear, and the green light on the park button is on. The power button absolutely does not function, nor does the gear selector. My understanding is that holding down the power button for 5 seconds should absolutely turn it off, this is not the case. This has happened on three occasions in the past week.

car image   Electrical System problem of the 2008 Toyota Prius 14
Failure Date: 12/08/2014

The hatchback lift has deteriorated and no longer works. The Toyota service representative quoted me $570 to replace it, stating it could pose an electrical system safety issue. No damage has occurred and since it is keyless . . . How does this happen? the clear coat has degraded only on the piece of metal that encloses the hatchback's lift mechanism and started flaking about the same time that I noticed it was getting harder and harder to lift the hatchback. Could these two failures be related? when these problems started several months ago it didn't occur to me that there might be a connection. The service rep ignored my question about a possible relationship.

car image   Electrical System problem of the 2015 Toyota Prius 15
Failure Date: 11/28/2014

A brand new:2015 only driven for two days, went out of control after completing right turn. Driver stopped at red light. Turned right while accelerating with full control of vehicle. Completed right turn while accelerating to attain highway speed in 45 mph zone. Upon completion of turn driver turned steering wheel less than 2 inches to drivers right to continue bearing on strait course down highway. Immediately thereafter steering wheel shuddered, and steering wheel rotated hard to the right for what seemed like a 110 plus degree rotation. The Prius out of control veered sharply to the right and smashed into curb. Driver injured back back, hand, and foot.

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car image   Electrical System problem of the 2005 Toyota Prius 16
Failure Date: 11/24/2014

Car when in park or stopped (at a stop sign or light) will automatically shift into neutral about a second after I try to put it in reverse or drive. It began happening about a month ago and now happens every time I start the car. It also began happening at stoplights and almost caused an accident when I was trying to accelerate onto a fast highway from a stoplight last week. It takes up to 10 attempts to keep it in drive or reverse now from a stopped position, and I never know when or for how long it will happen. Other than this, my car is in good condition and has not had any problems. I looked up the issue online, and from what a lot of other Prius drivers say, it sounds like a major issue with the shift lever assembly (see below for links to forums where many others have the same issue). This fix costs a few hundred dollars, and it seems common in the 2004-2009 Prius. . Read more...

car image   Electrical System problem of the 2008 Toyota Prius 17
Failure Date: 11/19/2014

The contact owns a 2008 Toyota Prius. The contact stated that the display screen shorted intermittently and then failed to work without warning. The vehicle was taken to an authorized dealer, who inspected the fuses and cleaned the screen. The technician replaced the multi display unit. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 104,000.

car image   Electrical System problem of the 2010 Toyota Prius 18
Failure Date: 11/18/2014

Vehicle was being driven when a smell of smoke was detected. Upon stopping, smoke came from the engine compartment. Within 3 minutes the vehicle started on fire, extending to the roll up garage door. The fire burned the engine compartment, passenger area, garage door and siding before the fire department extinguished.

car image   Electrical System problem of the 2006 Toyota Prius 19
Failure Date: 11/11/2014

My 2006 Toyota Prius headlight goes off when driving. It flickers first and then goes off. Sometimes one light goes off and sometimes both of them. When I turn the light off and turn it back on headlights work again. But after a while they turn off again. They stay on steady after I drive for more than an hour in long trips and after turning it off and then on again several times.

car image   Electrical System problem of the 2007 Toyota Prius 20
Failure Date: 11/01/2014

Headlight hid lights goes off without any reason. Problem has been found in various vehicles as per the online forums.

car image   Electrical System problem of the 2007 Toyota Prius 21
Failure Date: 10/29/2014

Tl- the contact owns a 2007 Toyota Prius. The contact stated that the authorized dealer installed four tires and after the repair the tpms sensor intermittently illuminated. The vehicle was taken back to the authorized dealer who indicated that they damaged the vehicle during the installation of the tpms sensor. The authorized dealer replaced the tpms and the failure did not recurr. The contact also indicated that the vehicle was parked in the driveway and upon further inspection of the vehicle the fire department was contacted due to the presence of fire burning from the console to the back seat of the vehicle. The vehicle was inspected by the fire department who determined that there may be an electrical malfunction. The vehicle was to be inspected by the insurance adjustor and the authorized dealer. The manufacturer was notified of the failure and the contact was waiting for a response from the manufacturer to further diagnose the vehicle. The approximate failure mileage was 200,000. Dyd.

car image   Electrical System problem of the 2008 Toyota Prius 22
Failure Date: 10/24/2014

The spiral cable that controls the electrical supply to the steering wheel (radio, heating,air conditioning, etc. Failed). In some vehicles the air bag power supply is routed through this cable and the air bag power supply fails when the spiral cable fails. In my particular case the air bag warning light did not come on but most of the other switches ceased working).

car image   Electrical System problem of the 2007 Toyota Prius 23
Failure Date: 10/13/2014

I was driving home last night and various warning lights came on. Within a short time the vehicle lost all power (entered a failsafe mode) and the hybrid system shut down while I was driving. The result was a complete loss of power and the vehicle came to a stop in traffic. I was close to the curb and turned on my emergency flashers. Called a tow truck and will take this to the dealer. I called Toyota customer service to see if others had experienced anything similar and they had no access to any information about other customer's experiences. They did say that there are no active recalls for this make and model year. A recall for the 2010 - 2014 Toyota Prius was issued in February 2014 for what sounds like a similar problem. While this wasn't a life threatening issue for me last night, in a press release drivers who've experienced similar issues were warned to get out of their vehicles because they could be in danger from being rear ended.

car image   Electrical System problem of the 2009 Toyota Prius 24
Failure Date: 10/08/2014

Driving on a dark road I went from high beams to low and the entire lighting system went out. I was quick so cycled the headlight switch, everything came back on but the passenger headlight. Tried replacing the light bulb, it still wont work. I paid extra for these h I d headlights. Now I'm told 1000 dollars to fix them.

car image   Electrical System problem of the 2007 Toyota Prius 25
Failure Date: 10/05/2014

At approximately 65mph a red triangle warning light appeared on the dash panel accompanied by a yellow circle. The parking button was flashing and a pink cartoon car appeared on the display. The car was running fine so I continued till I reached my freeway exit. At the bottom of the exit I had to stop for a red light. The exit is dark and has a sharp curve. Upon stopping the car the transmission locked and the engine shut down. I was unable to start the engine and and the car could not be pushed out of the way due to the transmission lock. Frantically I had to get a flashlight and wave off oncoming traffic. It was very dangerous. After a few minutes I retried the engine and it started allowing me to get off the ramp and get home. The warning lights stayed on. I took the car to the dealer the next day and after they tested everything they said that there was nothing wrong. Next time I might not be so lucky.

Other Common Electrical System related problems of Toyota Prius