Prius V :: 2012 - Sudden 12v Battery Failure
Aug 1, 2016
We've had our Prius v for a few weeks. Bought from a Toyota dealer who serviced the car (oil, filters, rotate) at 114,000 miles) before delivery. The car has been wonderful... until this week. We were on a 900 mile trip to the LA area from Texas, stopped for fuel at about 800 miles, Marino Valley, CA and when I got in to start the car it was completely dead. The day was hot, hitting 115F around Phoenix.
From my manual readings and priuschat readings I thought the 12V battery must have failed.
Car gave us zero warning of any sort of impending failure. The Toyota dealer told my wife and son "120,000 miles and 4 years old, yes, time to replace the 12V". In my opinion, Toyota engineering needs to find a way to detect impending failures, direct dealers to inspect/replace the 12V during routine service appointments (such as this car had 6 weeks prior), or light a dashboard light at certain mileage/age to recommend a new battery. I read another story here where the Prius (non-v) drive had total failure while entering a highway, with no warning signs, and only 1 year after replacement of his 12V.... now THAT would be terrifying.
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Was sitting in my car on my lunch break playing the radio and had my seat heater on, and all of a sudden my radio kinda went staticy and died and my car completely died. Had to power it back down then back up to get it running, battery didn't show very low, but when I went into start mode (non accessory) it immediatly started the ICE and charged.
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I was driving up a hill today at about 30 mph with .9 miles remaining showing on my EV battery meter when all of a sudden it drops to 0 EV miles remaining and shows only 2 of the battery level bars (which is very very low), and the engine of course turns on. What happened?
I promise I did not push the EV power bar over its threshold. I monitor that like a hawk. I also know for a fact that it jumped from .9 to 0, because I watch that part like a hawk. This part of the trip is near the end of my drive home and I've done it about 50 times so far with no issues. With .9 miles left at that point on the hill I have always been able to make it to my driveway with .4 or .5 remaining, so this is very odd.
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So the other day, jump in the car to head home from my exercise class and the dash is all lit up with warning lights including the exclamation point, but other than that, the car seems fine. Decided to drive the 2 miles home regardless and then drive carefully to the dealer another 3 miles away. They tell me the HV battery failed and they won't be able to get a replacement until early April. So I'm driving a free rental car which is fine. New battery is covered under the warranty. Car has less than 60K miles on it.
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The guy that I use to rebuild my batteries has recently commented that most of the bad cells he has replaced have been on the driver's side of the battery farther away from the cooling fan. He has since started rotating the cells as preventive maintenance as part of the rebuilding process.
I am interested in other peoples experience regarding where they are finding the defective cell/cells.
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I have a 2007 Prius with 92000 miles. All dashboard warning lights lit up the other day. Had it towed to the Toyota dealer and they first replaced the HV ECU. Now they are saying the traction battery needs to be replaced. They have had the car several days but they put me in a free rental.
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Received these warning lights this morning.
Just took it to a local shop and here are the codes it has thrown:
The car is running badly now -- really not wanting to drive t at all. Where I can get this fixed myself? I have no problem single charging / grid charging / balancing these things out and or replacing hopefully only "block 8" as denoted above. And yes, this is the nightmare of having you battery go out -- 160k miles right now so no chance of warranty.
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I have been posting about P3125 fault which is inhibiting ICE from starting. During this time I have been charging and also testing the traction battery so that I could continue to investigate the P3125 problem.
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I have an 05 Prius which had no significant problems until the HV battery died this past Feb. Two days later, I'm on the highway and lose power, manage to get the car to an off ramp. Have it towed to a dealer where the power failure pulled up code DTC P3190 and I was told that the car was simply car out of gas. The car was at 3 pips without any indicator going off but after consulting this forum I thought "Okay, maybe this is just the new normal." Filled my car with 5 gallons worth of gas which topped it off (?) and went on my way.
I'll add here for lack of a better place that with the new battery the car has not ever seemed to accelerate cleanly - always feels like there's some resistance on the accelerator when trying to go above 50 on the highway.
Cut to yesterday - I lost power on the highway 3 miles from home with the car at 7 pips (!). I had only put 130 miles on the car since last filling the tank so I can *not* imagine this is a fuel issue. And, worse than ever before, this time when the engine failed I had only about 1000 feet to get over to the shoulder. I did manage to get over safely (for those in SoCal, this was on the 5 North and I narrowly missed blocking the ramps to the 134). To make matters even worse it rush hour in 95+ heat, and I was pinned in my car for 20 minutes (traffic on one side, retaining wall on the other) until the tow truck arrived. I cannot have this happen again.
I had the car towed to the dealer this morning. When the car was picked up the car was at 7 pips in my driveway. The dealer states when the car was dropped of there it was at 1 pip, and sent me a picture of the odometer to verify. Wth?!
How is this possible? How could the gauge have dropped so rapidly? Is there a legitimate way the fuel indicator could have dropped so much or is the dealer scamming me? And what could be be wrong? The AAA driver this morning said they should have replaced the accessory battery when they replaced the hybrid battery, and perhaps that was the source of the problem?
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2006 Toyota Prius, bought new in Oct 2006, currently at 90,000 miles.
It just recently broke down on me about a month ago, the dashboard lit up like a Christmas tree with every possible light flashing and nav screen showing "problem." I took it to the Toyota dealership and they determined it was a hybrid system fail and replaced the battery.
After this, I'm thinking all is well. I go out of town this past weekend 130 miles away from where I live and day 2 into vacation my dashboard lights up again! Same lights, flashing red triangle, Vsc, check engine, etc. it gets me back to my hotel but the next morning the engine won't start. At least the first time it broke down the cars engine worked and was somewhat drivable.
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I have an 07 Prius which I bought used in 2011 and which has been fine (except for some A/C work last year) but got the 'triangle of death' this morning and having towed it to my regular shop, they tell me the code (they couldn't give me the number) simply said 'replace hybrid battery'... the car has 102,605 on the clock.
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I have been getting increased noise coming from the back of my car for the past month. So I jacked up the car and spun the tires and heard grinding noises in the rear right. I have a 2012 ToyotaPrius plug-in with 33,000 miles. When driving the car around 40 miles an hour there would be a howling sound coming from the back of the car regardless of the type of pavement I was driving on.
So I took it to the dealer today and they had it up on the rack in about an hour later they came to me and said it needed new tires and it would be about $700 and that this was likely causing the noise. I said that there was no way that it was the tires so I went and showed the mechanic how old the sound was coming out of the back right wheel. He listened with his stethoscope on the wheel bearings and said that he did hear some noise in there but still thought it was the tires.
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Our 2012 Tiguan (FWD) has been experiencing a sudden drop in MPG for the past two weeks. We had no significant change in climate or driving habits. With mixed driving, we dropped from about 24 MPG to 20 MPG. We had our 40K service done just two weeks ago.
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PIP does not charge the plug in battery while driving....
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Wondering if there is another factor involved here...such as the wrong gauge. I'm routinely seeing battery temps in the mid to low 90s even when it is pretty warm weather and I am in EV. Is this possible? On my old Gen3 even when I use the battery just a little bit on warm days it would go over 110. Does the lithium chemistry just keep it that much cooler? Or does the cooling system keep it that much cooler? Or both? What are other people seeing for battery temps?
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I just bought a 2012 Prius c. There are oftentimes when I don't drive my car for a few days. When this happens, I have heard that the car might not start, especially in the winter. Is this true?
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just came home and while inching into the garage on EV, noticed that the battery fan was on.
I have not noticed this before, except for when the battery is actually charging.
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My wife plugged in to the EV charging station at work for the first time today. She was supposed to receive an email when the charge finished but wasn't notified because there was a still a trickle charge being registered by the EV station even though the battery was full.
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What is "reasonable" for the loss of capacity of the Prius Plug in battery? Ours started out with a max at 11.7 miles when fully charged. After 6,000 miles and 7 months it is down to 10.0 miles. This seems like an excessive loss to me. I have read the tips for maintaining capacity and we don't do all the them. e.g. we charge out battery asap so it will be ready for the next trip. Our schedule is not fixed enough to determine when the car will be needed next.
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Why all of a sudden the mileage indicator on my 2012 suddenly dropped about 5 miles/gallon, both highway and around town? The car has only 9000 miles on it. Has there been a service bulletin regarding the "Eco'" mode? Having the "Eco" mode on or off doesn't seem to make a difference.
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Back in 2012 when I first bought my PIP, the battery charge level as indicated by range was 17-18 miles. The energy to fill the battery has been consistently ~2.5-2.7 kwh.
Earlier this year it dropped to about 15 miles. And just recently it's dropped to about 13.5 miles. The weather has gotten cooler in the last few weeks here in SF, so I don't know how much of this is seasonal as I haven't been keeping track that closely.
I expect to see charge capacity loss over time for the main LiON battery and would like to know what to expect and if my PIP is typical. How much further decrease should I expect in the next couple years? Is your PIP doing better or worse than mine?
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