Prius (Gen 2) :: Won't Turn Off - Master Warning Triangle / Some Electrical Humming
Jan 4, 2014
This is the second time this has happened in the past few weeks. Each time at first start in the morning. Each time temperatures had been in the mid-20's (F) overnight.
Push start button and it seems as if electrical systems "sort of" come on -- there is a low hum of some sort, but the little light in the power button stays a dull orange and the Master Warning triangle as well as several other lights on the dashboard come on (Traction/VSI and some more, I don't remember).
Gas engine def. NOT running. I then hit power to turn off the car and nothing happens. Still "running" although really not, other than some electrical humming. Can't shift into anything (Reverse, Drive, etal).
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I was driving down the highway today and the brakes light (!), vsc, and master red triangle warning lights came on, along with a car with an ! in it on the main display screen. There is no noticeable difference in noise, mpg, or breaking performance. From reading through previous forums a bad 12v battery seems to be a common problem. Mine was replaced ~8 months ago. About 2 weeks ago the serpentine belt snapped and the car was drove ~2 miles to my home where I replaced it along with the bad water pump and also the thermostat. Could that have caused my current problem. 130k miles on the car...
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My wife and I own a 2006 Toyota Prius that we bought used 2 years ago. a couple of days ago, the master warning light (red triangle exclamation point) and check engine light came on. I took it into the dealer and of course, our hybrid battery was dead - battery and a new ECU required.
Our car is at 99,000 and 32 days out of warranty. Went down the road to atlanta hybrid repair. they were incredibly nice, and said that my computer was fine, but the battery would need to be replaced.
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Had a warning flash up last night that I've not seen before. Had just done a reasonably long run from an airport with 3 burly guys and their luggage. Just as I was pulling up to their hotel the car did a continuous beep and flashed up the warning "Turn Power Off" and flashed the yellow triangle. When I was stopped I was in Park and it was still beeping and flashing this warning.
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Need to solve the problem of my Toyota Prius car in 2008. The car is cold while working well for a maximum time of 1 hour, the first symptom is to stop the air conditioner to cool, then turn on the light triangle warning, after driving a little longer for the vehicle and no more moves. If you wait until the vehicle returns to work for a few minutes to cool, then everything fails again with the same symptoms. And you change the battery 12 Volt, and you change the water pump hybrid system and I can not solve!
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In my one-owner purchased-new 2005 Prius w/ 74K miles and w/ no maintenance/accident history other than doing all scheduled maintenances at Toyota Dealers along w/ recalls applicable at each time (other than we had Toyota replace the 12V battery last year just because I knew it would die at some point anyway and I don't like pushing my luck; I'm not 100% certain if there's been a recall on any water pump for this car and if so, don't believe the dealer has mentioned it), I have the following indicators which appeared all at once while I was driving along at around 45 MPH in no unusual circumstances (80F, dry afternoon, about 30 minutes into a trip of mixed speeds, no loads in the vehicle, no effect on the car while driving):
From Left to Right on the display:
1) Red Triangle - Master Warning Light
2) Orange (Symbol)CHECK - Malfunction Indicator Lamp
3) Orange (!) - Brake Warning Light (but it didn't highlight the word 'Brake' in red)
4) Orange VSC - Vehicle Stability Control Warning Light
On the Screen:
Orange Car w/ the ! symbol - Hybrid System Warning Light
We immediately aimed for the house (about 5 miles away); the car drove perfectly fine, with the engine stopping and starting at lights as needed, with speeds going from the 55MPH we were traveling at the time of the alarms down to 0 and back up thru 35/45 MPH and such per normal off-interstate driving. The battery currently shows all the blue bars, and the engine and hybrid systems showed charge/discharge as usual as we drove. There was no discernible change in the driving reaction of the car to brake, steering, accelerator, etc.
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I have a 2005 prius that's not starting with the red exclamation . I had took it to the dealership before and they told me it was the big battery since I had the battery under warranty I just had it replaced and the 12v battery myself . Now when I went to start the car everything started fine car was running like 10 mins the heat never got warm then it shut off red exclamation popped. I turned off an on then I heard a humming kinda sounding pitch coming from front of car that got higher and higher then shut the car off and red triangle pops up and that's what it's doing now.
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I was driving earlier today and it flashed twice (about a second and a half each), and then didn't see it again for a few hours. I was going about 40 MPH at the time.
I was driving somewhere else today and when I got to the 70MPH mark (really, between 60-70), it objectively increased in frequency. I searched google and these forums, and the closest thread I can find that shares my ailments was this one:
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So the other day my girlfriend got in her car and it had the master warning light on. we took it to the dealer and now they are saying it is something with the transmission and it would be cheaper to just install a new one. Another thing is how could it be the transmission if i drove it over to the dealer and head no problem with the gears changing, but he also said something about a voltage leak.
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I have a 2001 Prius, my wife went and got an oil change and soon after she left the car shut off and the master warning light came on and it now acts as if the battery is dead ???
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When I start my car the master warning light comes on with all the other lights and then goes off with the other lights. It does not come back on while driving and there is no warning sound with it. This just start happening. It never came on with other lights when first starting it up. I have a 2009 Prius.
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Details: 2009 Prius with Nav, no touring, cold battery voltage reading (via display) is 12.1v and 14.2v running
I'm noticing something odd and I figured I'd ask and see if this is normal or something else. Sometimes on startup I see the red triangle then it goes away and sometimes it doesn't show up at all. I've had a few occasions where the car doesn't start. I usually shut the lights off and then it's OK.
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Purchased the car several months ago and have done all maintenance and the car is overall flawless but I believe it to contain the original 12V battery.
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I got a 2010 Prius. I noticed that when I turn the car OFF , the master warning sign (yellow triangle with an exclamation mark) and a message in Japanese (which I cannot read) appear for a few seconds. I don't see the warning when switching the car ON, or while driving. I experienced this frequently when switching the power OFF. Why this happens?
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Title says it all. Occasionally when I try to start my 2007 Prius (70k miles), the master warning light along with the brake, ABS, and VSC warning lights all come on. I'll turn my car off and then turn it back on and it will start right away.
One thing that I notice is that it seems like the headlights and/or the MFD is dimmer than usual when this happens. I'll turn off the headlights, turn on the car, wait for it to start, and then turn on the headlights and everything will work correctly.
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2001 Prius, 182,000 miles... Master Warning Light and brake light came on.....
I took it to the local dealer and they did a diagnostic, and they pulled the codes P0300, P3125, P0301, P0302, P0420, P3006, P3016, P3017. They said I would need to replace the the hybrid battery, the inverter, the catalytic converter, and the spark plugs.
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I have 2007 PRIUS with 187,OOO miles, I just replaced one bad cell today and the master warning,vsc,charging system warning light went off then come back on but it's charging .
All bars are green. Blue light is ON.
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Today i tried to start my 07 Prius, all the normal start up lights came on, including the master warning light, but the master warning light didn't go off. No other abnormal lights were on. When i put the car in reverse to back out, it wouldn't engage in the gear, it wouldn't back up. When tried to turn it off, it wouldn't respond to the power button, it wouldn't go off. I kept trying and eventually it did turn off.
The other thing that wasn't normal was, with the power off, when i opened the door, from the outside to get in, or from the inside to get out, the car started making the warning beep with the red car door open light flashing. Close the door and it stopped.
I have hardly been driving the car since the end of June, i take it out about once a week to keep the battery charged, and it's been working fine. However, about a month and a half ago, i accidentally left the overhead light on and it was on for a few days, and then the battery would not start the car. Auto Club came out and jumped it and since then, it starts OK
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Recently bought a 02 with 34 K, had been well maintained. Last night it wouldn't start so hubby jumped it (properly). Started right away, making him think that wasn't what it needed. Right after that, the Master Warning light came on, the Car with Exclamation Point in it (hybrid system warning light) and the check engine light. The car runs, but it did die, and I had to restart the car, then seemed to drive fine. We don't live near a Toyota dealer, would a regular mechanic be able to read the codes properly? What else should we consider? Should we drive the car?
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I got this exact warning Monday which is discussed in this thread (linked below) and its problem was a bad inverter water pump while mine seems fine: . Also in the linked thread another whom had gotten the exact warning, but inverter pump was not the problem, believed it meant the Hybrid battery was bad and replaced it. , but mine, at least for now, as discussed below, seems fine.
was about to make a trip, 140 miles, gassed up and when leaving station all these (quoted below) warning lights came on. and the car should have been operating in cold condition still as gas station was only a few miles from home. :
Master Warning Light, Malfunction Indicator, VSC, (!), and Hybrid System Warning on Screen.
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It has now come on 3 separate occasions, a week or more apart. Each time the yellow brake or tire light comes on. The next few times they come on together at start up. Then the triangle by itself comes on, does not clear. First time I was driving up hill. Second time I had just hit a drive way riser (not jarring). Today I was driving on a straight level highway and it came on at around 55 MPH.
Battery had been replaced after first instance. The inverter valve replaced too. Now what? It drives normally. Though it is the yellow brake light that accompanies the triangle Toyota says that codes say battery problems.
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