Prius (2004-09) :: Replaced 12V Battery, Intermittent Transmission Parking Malfunctioning
Jun 17, 2012
2006 Prius, 114K miles. In the last week started getting the intermittent warning of "There is a problem with the parking transmission lock. Place the car on a flat surface and fully set the parking brake." Car would not start, would only go into neutral. All accessories work fine, seems to be plenty of 12V power. Did a lot of research and determined that the most likely cause was a failing 12V battery. Used the diagnostic mode to check voltages, had 12.1 at "READY", 11.6 under auxiliary loads, and 14.1 with engine on (I did get the car to start eventually but can't figure out how and under what set of circumstances it would start).
So I ordered a 12V battery and replaced it. After replacing, I still had the Hybrid warning light, but after stopping and starting the car 3 times it went away. Car worked fine for a day but now the intermittent warning has returned. With the warning on, the parking lock seems to be fully engaged (car won't roll even on a slope).
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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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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 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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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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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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2007 Prius
I just replaced the 12V battery with an Optimus yellow top. The car still will not start. All dash lights come on, READY light does not. Car will only shift into Park and Neutral.
Battery reads 12.6 volts when not hooked up and 12.3 when cables attached to terminals.
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Have replaced dead cells on wife's HV battery over a month ago. Threw this P0a80 code today and will barely move. She idles into dealership and they say it's the battery, really!
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I have 2005 Prius with 300k miles. I started throwing P0A80 code. I removed the battery and checked all the modules and found 2 of low voltage, ordered them from Ebay and replaced them. I placed the battery back in the car and started the car but got P0A80 code again. I purchased the grid charger from Hybrid Automotive and connected it according to their instructions for 24 hours. I drove a car but got the red triangle again and P0A80 code again. I removed the battery again and tested the voltage of all the modules and these are the readings:
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