Prius (2004-09) :: Warning Lights Came On After Replaced Aux Battery
Oct 25, 2015
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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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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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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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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I have replaced the Traction battery AND the 12volt battery. I clear all codes by disconnecting the 12 volt battery for a short period of time. I reconnect 12v battery and no warning lights. I drive for 10 miles and RED TRIANGLE, Check Engine and the Brake lights also come on the dash. 2006 Prius 130K miles.
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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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Tested and replaced 2 bad battery cells in my 2007 Prius... Got everything put back together and now all dash lights are on and engine won't start... When i try to shift into drive or reverse it goes directly into park... I tested the battery without removing the safety key and the inside terminals are at 220 volts and the outside terminals are at 0 volts as shown by photo... Maybe due to a fuse somewhere?
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A year and a half ago, I had the hybrid battery warning lights come on and had it towed to the dealer. After given the option of replacing the battery for $4300, I took it home and did a single cell replacement (all cells ~8V, one at 6.6V which I replaced), which seemed to be all good until yesterday. Back with the warning lights and blower fan, I jumped to the conclusion that I have a similar situation, removed the battery and all cells are 8.04V +/- .05V except for 1 cell at 7.92. I am not convinced that this cell is really the culprit.
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I had noticed a drop in MPG in the last month (more than normal this time of year), so I started searching on PC. That lead me to testing my 12V battery 4 days ago, with the following results:
No load: 11.8V
Load: 11.5V
Charge: 14.2V
Car started and ran fine, but since the battery is the original on my 2006 with just under 130,000 miles on it, I figured I'd get a new 12V the next time there was a good deal at Advance Auto. No other symptoms until today. After driving around 150 miles on Saturday, the car sat for 3-1/2 days in 25-40 degree temperatures. Started and ran fine today. Did a 5 mile trip, followed by a 1/2 mile trip, followed by a 5 mile trip home.
On the way home, the car lit up like a Christmas tree (appropriate for this time of year). Master warning light, brake system light (yellow; not red), check engine light, VSC light, hybrid system light (no ABS light). Turned it off and restarted and the VSC wasn't lit, but everything else still was.
More info... I finally got around to disabling the back-up beep, and the driver side seat belt warning yesterday, which may have run the 12V down even more.
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Well all the lights are on for mine as well as of 2 days ago... checked the 12v, was at 11.8v, tested under accessories load (without engine on) and went to 11.4v then tested with the car on and we're at 14.2v
So just to be safe I went ahead and got a NEW 12v and installed it yesterday. All the lights went away immediately. Drove 30 minutes to the town over after the install... fine.... it sat off for about 1 hour.... drove it back home another 30... perfectly fine.
This morning the wife takes it to work, starts the car, all the lights on again... turns it off completely, then turns it back on and all the lights are off and then drove it to work just fine.
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I bought a 2006 Prius with a diagnosed bad battery and tons of warning lights lit on the dash. Toyota had diagnosed a bad hybrid batt and ECU. (I have not replaced the ECU). The car was driving and running fine otherwise.
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I own a 2005 Prius with 233K miles. I got the terrible red triangle of death and several other warning lights. Had the codes checked out at Toyota and confirmed a bad HV battery. I am kinda handy and I replaced it myself. No big job, it took about two hours, most of which was spent removing the interior panels, etc. Test drove the car and all looked well. Thirty or so miles later, BAMMM, lots of warning lights. At this point I took it to my mechanic to have it checked out. They found nothing you wouldn't expect when you've disconnected the two batteries.
They cleared the codes and off I went. Again about thirty miles out the lights went on again. Back to the garage once again. What they found was a corroded connector running to the fan, located under the rain gutter of the hatch, passenger side. Hmmm, how'd that get corroded?? Two years ago I remember drain the sump where the spare's located of 6 inches of water, how'd that get in there??? My mechanic confirmed he has seen that before in the Prius. So now I am wondering, did the initial battery fail because the fan may have failed??? Perhaps we need a warning light.....
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I bought two new factory fresh speed sensors to replace the ones. So, after work tonight I get the car up on jack stands and replace both sensors in about 45 minutes. Get it off the jack stands, torque down the rims and reset the dash lights. Nice clean dash display with no warning lights.
I drive it down the street, nice speedometer display and then, after about 100 yards, the warning lights come on and the speedometer flickers from 22mph to 2 then 10 then 1 then zero. I drive it back home, check the sensors and the connections, reset the lights again, drive it down the street and, same story.
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Tonight I was driving home and the warning light came on. Thursday I was driving and noticed that the power lurched a few times. I switched over to see the energy usage and noticed that the battery was at the lowest bar. It stayed there for about 10 minutes. I called the dealer and started to head there. As I was talking the bars began to rise. It has seemed fine for the last few days until the lights came on tonight. I had just put gas in it. However, the car seems to run just fine and the traction battery seems to be charging just fine. There was no loss of power. Here in Texas it has been over 100 degrees for many days. I had an oil change at the dealer 10 days ago.
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I have my 2004 Prius in the shop for a replacement of the HV battery pack. The car has approx. 120,00 miles on it.
The battery failed with all the lights, warning symbols etc. I just got a call from the dealership that its going to take longer than expected to get the car back to me. They have the battery pack replacement, but when doing the replacement, they noticed that the cables were "corroded." The cables for the battery need to be replaced before they will complete the repair. But the cables need to be ordered and won't be in soon.
Is this common? for these cables to corrode? Would this problem have caused the HV battery failure?
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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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My husband just replaced the spark plugs in my 2005 prius with 174,000 miles (also replaced the right headlamp bulb). When I started the car, the PROBLEM check engine light Hybrid Warning Light came on.
Owner's manual says take it to the Toyota dealer. The dealer is 50 miles away. Is it safe to drive it the 50 miles? It drove okay up and down my driveway.
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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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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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