Prius (2004-09) :: Bad HV Battery / Recently Replaced 12V - Now Not Even Starting
Jun 3, 2014
I have a recently purchased 2005 Prius- Mileage-150.3k having several lights on the dash: ABS/VSC/Engine Check/ Brakes, etc. See attached screen shot. Initially, I got into the shop and had the codes read out several codes. In all, I was informed the root cause was a bad 12v and bad hybrid batteries. By this time , the car was still moving, though not very smoothly. however, less than a week thereafter, the car couldn't start again.
We decided to replace the 12v first, hoping to get it back to start but it wouldn't. I've checked the fuses in the engine compartment as well as on the steering column- all okay. I've checked battery voltage, it's now at 12.3v. When I try to start, the Ready light would simply flash for 2-3 seconds before going off. I've rechecked battery connections as well as the brake controls by the 12v battery- all well tightened.
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About two months ago, one of our two headlights was out. I came to Prius Chat -- of course -- to find out if I had to buy the super expensive ones from the dealer. Everyone seemed to agree that the best bet was to buy them from Amazon. We did. The dealer charged to install them and it was quite a task, things had to be removed and I didn't watch, so i can't be all that specific. At first he thought he could just stick them right in, but then quickly realized it was the kind that are difficult to replace.
So fairly soon after this job was done, my husband -- who is the 99.9 percent of the time driver -- noticed that they both just went off. He drives a windey mountain road in the dark, so this is not okay. However, by merely switching them off and then back on again, the problem went away. I worry that this could get worse. Last night, I was driving the car in the night and had been on the road for at least 20 minutes or so, when they went off. I turned them off and back on, and all was well. So, what's up with this?
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Last week Wed my vehicle was not starting. Some lights would start to come on and then die out. I read the forums here and replaced the traditional battery. Perfect, started right up and no issues. Today, went to bring the kids to school and it did not start up. No messages, a few lights like before and it went dark. Is this an engine issue. I have not tried to jump the new battery yet as it is pulled forward in my garage. (Today being Tuesday and not even a week into my new battery). I looked around, nothing was left on so what is happening. It has just short of 80,000 miles on it.
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Purchased an 04 Prius with 140k miles and bad HV battery. Used torque app and pulled original codes for bad HV battery. I was able to drive/limp the car home for tear down and replacement. After installing a used HV battery that had 80k from and 08 car. It will start but shutdown after a few seconds. I was able to put it in to drive and move it but it still dies. Energy display shows no battery status and now I get the connect to air conditioner communication warning. The battery's are reading 15.2 volts each from the torque app these are read in pairs so seeing 14 readings all within .1v of each other. I am not getting any codes from the computer.
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I have a 2005 Prius recently replaced the hybrid battery. Not so happy with it, my mpg b4 was 49-51 mpg, now I only get 40-45 mpg. I notice the car is a little weaker and the ICE rev higher everytime I accelerate.
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2005 Prius I picked up a few weeks ago decided to eat both of it's batteries for lunch and leave me high and dry. I replaced the aux battery yesterday which I was lucky to get at cost at the toyota dealer since the aux battery was original. Put it in and all was well with the car for the rest of the day. Got in it today and headed out and was welcomed with the big stupid "!" triangle, the regen brake warning, check engine light, "PROBLEM" written on the display with a picture of a "!" inside a car outline, and some severely reduced performance. So I looked online and found a place with a bunch of low mileage batteries out of smashed up 2009's.
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My car started giving me trouble I ran the scan tool and it told me that cell 6 was bad on my battery. I replaced the cell and put the battery back in now the check engine light is on and the problem triangle is on and the car wont start and only shifts into neutral but when I check for codes i get nothing .
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I have a 2008 Prius, MFD died one day, screen completely dark and all buttons on it are unresponsive. I used a voltmeter to check the 12v battery which had troubles last winter (had to jump it once) and it was at about 10.6v so I just replaced it with an Optima battery. Sadly the MFD is still blank.
The MFD actually came on for a second a couple weeks ago which led me to believe it was still functional and just not getting enough power from a failing 12v.
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I've attached some pictures of what it looks like. Sometimes there are no lines and just black but the display button still overlaps. Everything else seems to be working. I think this happened when I got the 12v battery replaced. I am also not sure I have a nav dvd. How do you eject those DVDs?
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I purchased a 2005 Prius with 54k miles with a rebuilt title July 2011. About a month after I purchased it (from a private seller) I started to hear a slight grinding noise. It turned out it was the transmission/transaxle. I drove it for about 4 more months since I knew I had to replace the trans anyway. Next, I sourced a used transmission from the guy I purchased the car from. I installed the trans myself. But, it wouldn't run right at all afterward... it wouldn't go over 5mph and it would jerk. I took it to a Toyota shop and was told that it now had a dead 12v battery and HV battery.
I had both replaced. It still had the same issue with drivability. I took it to the dealership for a proper diagnosis and was told the transmission was the issue. So, I purchased another used transmission and installed it. I was very careful to make sure everything was installed correctly. So, now the car won't drive at all or even go into park. Attached is a picture of the current screen, which says "The transmission 'P' lock mechanism is abnormal. Park your car at a flat place and apply the parking brake completely." So, did I get another bad transaxle?
As I see it - my choices are
1) put in another used transmission, which I could do (3rd time is a charm) ,
2) spend more money to diagnose the car again or
3) sell it as is and get nothing for the car
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I took my 2005 Prius to dealer and was told both battery computer and battery CPU were bad (easy $4,000.00 fix). So, I pulled big battery, located bad cell and replaced with similar voltage (7.9 VDC used cell). After re installing, the car will only go to neutral and will not start. Note, before tear down, car would start and run (I drove home from dealer). Before pulling big battery I could reset trouble lights for short time by removing ground to AUX 12V battery. Now, lights don't change and are always on. Car will not start or run and will only go in "Park" and "Neutral" and "B" does not show on dash like usual.
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I have a 2007 Prius. We left for vacation for 2 weeks. Came home. Started the car and then all the lights came home. I thought the battery must have drained. But the lights are all on with a new battery. Is there a way to clear all these?
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last week I got a whole array of warning lights, including the triangle of death. Took it in to my local mechanic who diagnosed it and told me it was the HV Battery. So, as a temporary fix, we did some DIY and just replaced the bad cell. Everything went well, just some minor troubles toward the end with the engine not turning on, which we fixed by switching the orange switch on the battery and disconnecting and then reconnecting the 12V battery. It was driving great, until u got to work this morning and all the lights came on again. What am I missing?
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I need to replace my girlfriend's starter on her 2006 Sonata 3.3 V6. Her car is having the intermittent starting thing that i noticed some others are. We've already replaced the battery and the starter relay. The relay worked for a while but the car is back to having issues intermittently again. I figured I'd replace the starter now(with a new starter solenoid on it). Also, while I'm doing this I'll check for any loose or rusty grounds.
So, I've peeked under the hood and tried to follow the battery cables to find the starter but I haven't been able to find it. Is it under something? Do I need to remove the battery?
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A few weeks ago, my battery died, got a new one, ran fine for a week. Then wanted to go to work a a few days ago, turn the key and heard nothing, took the starter out, got a new one and put it in (used-but I took it apart and it looked fine) Once I put that in was excited to have my car back, but same thing, not even a sound coming from the starter, doesn't even try. Thought it might be a fuse problem, checked everyone that might have to do with the engine...and they all looked fine.
Something with the relays perhaps? I haven't checked those yet. A ground issue? I'm so lost right now.
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So I got up this morning and my car wouldn't start. It was turning over, kinda. Figured it was a problem with the battery. So I pulled the battery out of my car, took it to the local O'Rileys, they confirmed the batter was dead and sold me a new one. Put the new battery in the car, and it still won't start. The car turns over just fine now, but it won't fire.
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My 2007 Prius suddenly lost power and all lights on the dash board light up. I had a "problem" error as well. Eventually a message came up stating there was a transmission P lock mechanism problem.
Long story short, realized the 12volt was dead and replaced it. However, the car is still not running after replacing the battery. It went once around the block fine, and then the same thing happened with all the lights (check engine, VSC, brake system, and !) and P lock mechanism warning. Disconnected the battery for 15 minutes and tried again. No luck.
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I am not sure if I need a new fob.
My smart key quit working. I have replaced the battery, and checked the button under the steering wheel. The little red light on the fob does not blink or light up when I push it. I think I recall this light coming on when a button is pushed.
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So from the beginning the car wasn't coming on. It gave me error "p" said my parking break was not working properly and needed to be on a flat surface in order to work. We jumped it and replaced the battery shortly after that. The car will turn on but the actual engine is not turning on. The display screen has a little car with a red exclamation going through it. The dashboard also has all the lights on. We have tried to jump it from the relay at this point but it wont start now to where before it would.
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Quick question, my wife wasn't able to open our '04 Prius with the FOB. I replaced the battery, and the FOB started flashing, which I'm assuming means that the new battery is working properly. However, after I put the FOB back together, the lock/unlock buttons still don't work. I can still manually open the car with the attached key and start the car with the FOB, but I was wondering if there's still a problem.
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2006 Toyota Prius 93000 miles
On 3/8/13 my Prius would not start. I read some information online and came to the conclusion I needed a new battery.
I started the car, and it immediately started up. I drove it for a very short time and parked it in the garage.
Today I started the car and drove it for about 5 minutes to a restaurant. I did some shopping and about 3 hours later I started the car and A Big Red Triangle appeared along with a yellow circle with an exclamation point in the center and the check engine light.
I immediately drove it to the Toyota Dealer 5 blocks away.
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