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really awful
Crashes / Fires:
3 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
60,733 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.

2005 Toyota Prius electrical problems

electrical problem

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2005 Toyota Prius Owner Comments (Page 1 of 6)

problem #104

Feb 272014


  • 97,448 miles


On 2/27/14 the SRS indicator light in our vehicle lit up causing us to review the owner's manual, which recommended immediate service. Per technical service bulletin T-sb-0042-11, this issue was caused by failure of the wiring harness, which was diagnosed with scanner code B1826. According to the tsb, the design/material fault can occur in 2004-2009 priuses. The fault, according to a Toyota service advisor, results in a failure of the air bag system. To address the condition, "an updated wire harness must be installed." The cost to repair this design fault is $2,500. And up depending on if one or both sides of the wiring harness has to be replaced. Because this safety related defect needed to be addressed at once we paid to have the vehicle repaired but expressed our view to the Toyota personnel that the defect should have been covered by Toyota. We feel that this defect should have been the subject of a recall. Calls to the GM of the dealership have not been returned.

- Moraga, CA, USA

problem #103

Dec 312013


  • 182,000 miles
After a short period of time headlight flickers then goes out. Have to turn off then on, only to last a short time. Brand new bulbs.

- Springfield, MA, USA

problem #102

Dec 152013


  • 170,000 miles
The dashboard screen goes blank. This has happened twice in the last couple of days. I can't tell how fast I'm going, how much gas is left, what gear I'm in, how much mileage is on the vehicle, whether or not the lights are on, etc. Toyota has a service notice about it, but my vehicle is just 2 months out of warranty. I didn't have this problem before while it was in warranty. It is extremely unsafe.

- Walnut, CA, USA

problem #101

Aug 072013

Prius 4-cyl

  • 175,000 miles


The headlights would shut off and not come back on during various speeds. It was extremely dangerous. While driving at night at 65mph a headlight ( randomly left or right) would shut off at night). I would have to pull over and turn the light switch off to reactivate the headlight!!! the headlight would come back on once the switch was turned off and on again, but several miles down the road, a headlight would go off again!!! this is extremely dangerous!! we brought it to a Toyota garage, and were told there was a recall on these headlights but not for our 2005 vehicle. We paid $476 to replace both headlights!! how can headlights be recalled for this problem and be covered for certain years only"?? with the research I have done it appears this is a dangerous problem for 2005 models too!!! why wait for accidents or deaths??" thus occurred at all speeds!!

- South China, ME, USA

problem #100

Sep 022013

Prius 4-cyl

  • 199,371 miles
I had just had my oil changed and when I was leaving I started the car but the dashboard lights didn't come on. I drove on and still nothing. When I was at a stop light, the lights came on with the error message that my brakes were engaged. I tried multiple times to depress and release the emergency brake, but the same message. I couldn't move the vehicle because the front brakes were locked. I had it towed to the dealership and they said they had to get Toyota involved but it sounds like three computers are fried. This is very frustrating since I got the vehicle because it had such wonderful reviews (yes this was some years ago) how do computers just "up and fry" without any warning. I am hopeful that Toyota will do the right thing and step up and take the necessary steps to make sure this doesn't happen to anyone else. Also, whatever they could do for me would be greatly appreciated since I was a die hard Prius fan.....until now"?"

- Garland, TX, USA

problem #99

Jan 012013

Prius 4-cyl

  • 35,000 miles
Digital dashboard display is, from time to time, so dim as to be almost invisible. Sometimes it appears to be about 90% of brightness, other times at about 5% or less. This makes it almost impossible to read such information as speed, warning lights, etc. When it is visible, it is a major distraction, taking considerable time and effort. Toyota has extended the warranty for this problem, but my Toyota dealer refuses to perform the repair, claiming that as long as they can see the display at any level, regardless of how dim, there is not a correctable problem.since the problem is intermittent, they may not see it at its worst.

- Barrington, RI, USA

problem #98

Jun 212013

Prius 4-cyl

  • 94,393 miles


Both hid headlights went out at the same time. I can toggle the light switch off and on and one or both lights came back on. Then went out again within a few seconds to a minute, over and over. Makes no difference if car is not moving at all or going 70 mph. I was able to drive the 15 miles home at night without incident. Went to dealer next day and they say all that is wrong is that the headlights are burned out. Estimate to replace both is $474.31. I do not believe that they would burn out at exactly the same time. And if they are burned out then why do they come back on and off. I have done research and found the class action settlement for 2006-2009 models. I also found that you have had hundreds of complaints about the 2005 model yet you have not considered this a safety matter. I disagree. Even if you don't help me, I want my complaint included in your database.

- Sulphur, LA, USA

problem #97

Sep 012012

Prius 4-cyl

  • 120,000 miles
The left headlight unexpectedly goes out. If I turn the lights off and on again, the headlight comes back on, but soon repeats going out.

- Gilroy, CA, USA

problem #96

Apr 052013

Prius 4-cyl

  • 112,000 miles
On my 2005 Toyota Prius the hid lights were replaced with Toyota parts. Within a couple of weeks they started to go off and on at random. The dealer replaced them with aftermarket hid bulbs. After about 18 months one of the lights would go off and on at random. The dealer no longer carries aftermarket hid bulbs. They told me they could install the Toyota bulbs which have issues or I could get aftermarket bulbs and they would install them. Well the new D2R hid sylvania bulbs were installed by the dealer. Within 2 weeks one of the new bulbs went off and on at random. Now a week later the other new hid bulb is doing the same thing. I have read that this issue has been going on for years. This is a safety issue and also an expensive repair. When will this safety problem be addressed"???"

- Fontana, CA, USA

problem #95

Jan 012013

Prius 4-cyl

  • 235,000 miles
The multi information display no longer shows the vehicle speed and other specs such as fuel gauge, warning lights, and such. The vehicle sometimes couldn't turn off, and it would require me to press and hold the power button for more than 5 seconds in order to turn off the vehicle. Driving is quite dangerous as I not even sure if the car is even "ready" or not, and what gear (D, N, R) it is in. Toyota is charging me 400 for the repair even though the service bulletin stated that this is cause the manufacturer defect on the circuit board. My sister who owns a 2006 Toyota Prius (16X, xxx) did receive the notice of recall for the multi information display, but I didn't any notice at all. This repair should be covered by Toyota. This is outrageous!

- Garden Grove, CA, USA

problem #94

Mar 082013

Prius 4-cyl

  • 65,000 miles


Dashboard information suddenly turns blank -- no fuel level, speed, etc., but headlights work (although no indicator on instrument panel) as well as turn signals, air-conditioning, and radio. I drove straight to the dealer thinking that it was probably a fuse. The service department reports that although they have rarely seen this, it's a problem with a component behind the power switch. The part is in short supply and may take as long as four weeks to arrive. They said it would be covered under warranty and the dealer will be paying for the cost of a rental car in the interim. The service from the dealer is superior and...I love my Prius..

- Riviera Beach, FL, USA

problem #93

Jan 022012

Prius 4-cyl

  • 115,000 miles
The driver side headlight intermittently goes on and off without warning. This began over a year ago, but we cannot name the specific time. We initially thought it was just a light bulb, however, we learned that it can be reactivated by briefly turning the headlight switch off and on. This is a safety hazard if driving at night. It can happen several times during one trip or not at all. We have taken it to a few Toyota dealers and they have indicated that it could cost 400-800+ to repair the problem, which we believe to be excessive so for now we are tolerating the problem.

- Jamison, PA, USA

problem #92

Jan 032013

Prius 4-cyl

  • 101,000 miles
Front right headlight is intermittently going out. I can get it to go back on if I turn switch off and back on but it may fail again within 10 or 80 minutes. Replaced bulb, but still have problem. Dealer said it was the bulb but replacing it has not fixed the issue.

- Mill Valleuy, CA, USA

problem #91

Feb 012013


  • miles
I started up the car this morning, put it into reverse, and a second or two later, it shifted itself into neutral. The shift lever felt like there was more resistance to it than usual. This happened several times and also happened when I tried to put the car into drive. After about 15 minutes of turning the car on and off and trying to shift several times, the car finally stayed in gear. The problem is the same as described in this thread: www.toyotanation.com/forum/62-Prius-forum/343977-08-Prius-wont-stay-gear.html, with the only difference being that it was a rather cold day (0 degrees F) while most of the posts in the thread mention the problem occurring on a hot day. While the malfunction on my car was problematic but not life-threatening, I am concerned that the car could shift itself into neutral while I am driving (as described by several posters in the above thread), which would be a dangerous situation.

- Ames, IA, USA

problem #90

Oct 122011


  • 135,000 miles
Since about the fall of last year or so, we've been noticing that the headlights have been going off intermittently. The right went out and then came back on. Then another time the left went out and came back on. I've read about this occurring on many other Prius' and that there was a class action suit? anyway, I need to figure out how to get this fixed as it is a serious safety issue.

- Pflugerville, TX, USA

problem #89

Nov 012011


  • 78,000 miles
The headlamps repeatedly burn out, which repair people have said indicates an underlying electrical problem. I now have to replace one of the headlamps for the fourth time in just over a year.

- Takoma Park, MD, USA

problem #88

Sep 012012


  • 56,000 miles
The contact owns a 2005 Toyota Prius. The contact stated that the vehicle failed to start. In order to start the vehicle, the emergency brake had to be engaged. The contact also stated that the headlights failed intermittently but would function normally after attempting to activated them several times. In addition while driving at various speeds, the transmission would erroneously shift into neutral and all of the contact's attempts to shift back into drive failed. The vehicle was taken to the dealer but the failure could not be diagnosed. The vehicle was not repaired. The manufacturer was contacted about the failure. The failure mileage was approximately 56,000. The current mileage was approximately 57,000.

- Chicago, IL, USA

problem #87

Dec 102012

Prius 4-cyl

  • 149,709 miles
Outside temperature approx 32 degrees F. gear shifter on dashboard would not electrically seal-in or stay in position after going into reverse, the first time. Backed car out of driveway and shifted into drive, it immediately went back into neutral position and would not stay in drive - electrically. The only way to keep the car in gear was to physically hold the gear shifter into desired position. Physically held shifter in drive position and pulled back into driveway. Once in driveway, tested shifter and found it would not go into any gear and "stay". after work, temperature was 60 degrees F and shifter then functioned properly. Drove to Toyota dealer and left car. They stated a technical bulletin was issued by Toyota on this item as described. Ticket # 490621; part number 33560-47023 "lever assy. Shift, was replaced. Part cost $164.93 and labor was $416.14 for a subtotal of $581.07 plus tax of $34.33 for grand total of $615.40 usd. This is obviously a cold weather and age related issue. Plus, this is not the first Toyota electrical system design flaw issue I've encountered, but the first related to drivability and possible safety issue.

- Houston, TX, USA

problem #86

Sep 272012


  • miles
Headlights (one or both) will randomly turn off while driving. Turning the switch off and back on will turn them back on.

- Herndon, VA, USA

problem #85

Nov 092012

Prius 4-cyl

  • 115,995 miles
My 22-year-old son had a scary incident in which our 2005 Prius stalled spontaneously on the bronx river parkway (valhalla, NY) with several dashboard warnings lighting up. The hybrid shifted to battery mode in traffic. Luckily he was able to get off highway. Car was towed to dealer. We're very concerned because the car never had problems and because, on an internet search, we see the failure was precisely like the one described in NHTSA report that resulted in a Toyota action to service many cars in 2005: J.mp/nhtsaprius05problem.

- Garrison, NY, USA

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