Prius (2004-09) :: 2005 - Hybrid Battery Warning Lights Come On
Jun 20, 2015
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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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 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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Some years back my "farm" '05 prius when a host of bells and whistles went off, cooling fan ran more than normal, and I lost power a couple of times. Turned out this farm prius had an accumulation of dirt, dog hair, hay and other debris that needed to be cleaned out. You got me through the whole process, and the car's run fine until.... . Fast forward a couple of years to 200,003 miles. Now the cooling fan is running pretty constantly, the red triangle stays lit, the check engine light comes on, the (!) is on, and the VSC light is on. Haven't hooked it up to check codes, but did check cooling fan and it's clean. Would it possibly possibly better to change the 12 volt battery?
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I haven’t been on these boards very often since getting my used 2008 Prius because until now it has been very kind to me in terms of not needing mechanical repairs. Unfortunately that good streak seems to have come to an end. Driving home Monday evening (after ~30min freeway driving), my master system warning light came on, accompanied by the hybrid system warning light. I didn’t know what the latter was – had to look it up – but I immediately pulled to the shoulder. The car was driving normally, however. Since shops and dealers were closed for the evening, after much debate I ended up having the car towed to a family friend’s body shop; they were still there and had a scanner to check the error codes for me. My car was on the side of the freeway for well over an hour with hazard lights on and the dome light on and off occasionally as we got in and out of the car. By the time the tow truck arrived, I discovered that the 12V battery seemed dead; car wouldn’t boot up all the way, wouldn’t shift to neutral and didn’t want to power down – I had to try turning it off upwards of 10 times. I was surprised, given just the hazard light and limited dome light usage. We jumped it, got it in neutral and on the truck.
At the body shop, they said there were no error codes related to the hybrid battery; something about transmission that wasn’t clarified, and errors for low voltage on the 12V battery. With everything off, it measured 10-something V; something higher when turned on, but they believed the problem was a dead 12V battery. I was surprised that it would suddenly give out in the middle of driving, but we went ahead and replaced it the next day. I picked up the car Tues evening, and had no problems driving it home, to work the next morning. Unfortunately, during my drive home – strangely at almost exactly the same location as the first time – the same hybrid system warning light came back on. I’d driving about 70 miles with it off at this point before the reappearance. This time I didn’t pull over to the side (had enough of that before) but rather drove a few more miles to a parking lot where the car has now stayed overnight. I note that the car seemed to drive perfectly normally during that time; no loss of power.
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I have a 2005, I purchased new in 2005. I now have around 120,000 miles and have had no problems - just oil changes and new tires.
I was driving on the interstate in MS and all of a sudden all these lights come on on my dash including the triangle that means take it to your dealer immediately. The car sounded funny acted funny and accelerated funny. I was closer to home so I came home and called the dealer. They said to drive it in but if it started acting up to pull over and they would come get me.
When I cranked it, it sounded like I was pushing the accelerator but I wasn't so I cut it off then cranked it again. I drove it very slowly cause it was acting weird.
I drove it home to discuss it with my husband and to do some on-line research here. So 2 - 3 weeks later my husband decides to look at it and by now the little battery is dead - it is the original battery too -btw. So I bought a new toyota battery (the little one). My husband hooked it up to see if the car would crank. It did but all the lights on the dash lite up again including a couple new ones!
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My 2005 prius will not start. We had some body work done to it after a deer ran into me. They did a small amount of welding and had disconnected both batteries. Now the car will not start. It can be put in auxiliary mode but if you try to start it with your foot on the brake, it flashes some lights for a few seconds and then goes dead. Is the hybrid battery too low to start the car? It was pretty low. before the batteries were disconnected. Or did they possibly do something wrong when they disconnected the hybrid battery? Final question would be do they have to do some reprogramming after disconnecting the hybrid battery?
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I just wanted to share my story here. Last week on a routine trip on I-5 warning lights started flashing indicating hybrid drive failure. The car automatically shifted into neutral and I was limping along down hill. Luckily I saw a downhill exit and had the foresight to turn off where to my horror I discovered that my brakes didn't work. So I had to coast to the bottom of the hill and again made a quick decision to turn into a slight uphill side street to force myself to a stop with the parking brake. At point the car completely died and I couldn't even shift into neutral to push it.
After towing it to AAA and avoiding a collision on I-5 (if I pulled into the shoulder without breaks I likely would have crashed into a retaining wall) and then not being smacked after I got it to a stop I was pretty shaken...I'm lucky to be alive.
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I replaced the hybrid battery in my 2005 Prius today & when I disconnected the 12v battery the wrench arced & I assume that I blew a fuse. I have looked, but have not found anything. I hope I am missing something obvious.
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My car is an 05 and currently has 219,000 miles. Runs great. Only things I've replaced are the 12 volt battery and the rack and pinion. Replaced the rack because I was trying to drift in the snow and tried to beat the traction control. Needless to say, I lost and hit the curb. Jammed the gear in the left side of the rack. Replaced the rack with a $75 used one and no problems since.
My issue is this, even if my battery is at 6 bars when I first take off, my hybrid battery drains down to even as low as 1 bar. It only got down to 1 once but is hitting 2 regularly. After about 3-10 miles it is back to the regular charge rate. I also noticed the other day with the window down, there was a slight whirring sound, almost like a gear or wheel that is a gummed up and is being slowed down. It also felt like there was resistance, almost like the brake was dragging. After a few miles, as in less than 5, the noise was gone and the car was going along just fine. I've checked the emergency brake to see if it's dragging by applying it and releasing it several times. Does not appear to be the issue. Today I put it in neutral to see if that changed anything but it did like it always does and just coasted along fine with no resistance. My thought is the transmission. I'm wondering if the fluid it so old and broken down that maybe things are gumming up. Either way, I purchased the tranny fluid and will change that out. I know people will probably gasp but I have never changed it. Actually thought because it's a cvt and there is no dipstick to check it, that it doesn't need changed. After reading up yesterday I discovered I was mistaken.
I think that's about it. I'll edit it if I think of something more. Once the battery is back up to charge it accelerates and drives like normal. I do want the car to last so my daughter can use it when I buy the new Prius Prime.
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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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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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I've got some issues with my 2005 Toyata Prius (~150,000 miles). My wife was driving recently and the "Master Warning Light", the "Hybrid System Warning Light" and the yellow "Brake System Warning Light" all came on.
Some quick reading of the owners manual said we should take it to a dealer right away, but because it was a yellow, and not red, brake system warning light it seems ok to drive at least to a dealer. in regard to the yellow brake system light the manual said it could be that: "the regenerative brake system failed or that the hydraulic brake system failed".
Now, I have a cheap bluetooth OBD reader hooked up to the "torque" app on my phone and I thought I would try to see what error codes there were to learn more. But strangely, it did not read any fault codes. I've used this reader successfully on my 2001 Mitsubishi galant, but I'm not reading anything for the prius in this case. I'm not sure if there is legitimately no error code associate with the warning lights or if my app is just failing to read them for some reason.
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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 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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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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But while driving the hybrid warning light turned on in the MTD. A red car if I remember correctly. It was the hybrid battery over heating and to try and mess with the wiring going to the cooling fan in the right rear quarter panel.
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My 2010 Prius with 205,000 miles, has hybrid system warning, and the dealer has reported that the hybrid battery needs to be replaced, there is a prob with one module but they do not repair the batteries only total battery replacement. Also needs front brakes and tune up. I did not expect the hybrid battery failure on this 2010 Prius since my 2008 Prius (184,000miles) had no issues thus far with the battery. Both cars are every day drive cars. Both cars have been really dependable and only routine maintenance.
I had no issues with the hybrid battery until after my last service when their was some factory recall having to do with the cars computer system, and routine oil change. The car stalled out the next day, but then restarted, this was odd it felt like the car was running but would not go into gear nor respond to the gas pedal, I'm calling it a stall, I'm not sure if this is correct terminology. So, it did this a couple of times the day after service, I was shocked but I just killed the car and restarted no other issues for about 3 weeks. Then I got the hybrid system warning on the computer screen on the dashboard, UGH.
I never expected my newer 2010 Prius to have a hybrid battery failure before my 2008 older Prius.
I'm looking for options with Prius over 200,000 miles. Both have been maintained through dealer services. Dealer reports the 2010 Prius with this issue is worth 1000.00 . I'm at a loss I really want to keep the car, but now I'm unsure, and obviously think it's worth more than 1000.00.
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My 2005 Prius with 116K on it has been having some uneven acceleration lately and today the Triangle warning light, the check engine light and the brake light came on at the same time. I had about 1/2 mile to go, so I proceeded slowly and called the dealership which had performed a routine oil chg two days ago. They said that if the lights weren't flashing then I could drive it. They recommended that I take it to AUTO ZONE and put it on the analyzer. This elicited these codes: P3019: no definition and P0A80: replace Hybrid Battery.
I have an appointment in 2 days and I'm wondering about a salvage HV battery since the car is 7 yrs old and over 116K miles.
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I have a 2003 Prius with just over 116,000 miles. When my wife cranked it a couple of days ago, the "Hybrid System Warning Light" came on.
As advised by the owner's manual, we didn't drive the car. We took it to the local dealership to be checked out. When I called for an update last night, they said that the computer indicates that the hybrid battery is leaking.
So I guess my questions are:
1) What kind of lifespan is typical of a 1st Gen Prius?
2) How many more miles are reasonable to expect from the gas engine?
3) Is there anything I should be aware of to make sure I'm not taken advantage of? (eg is there a credit for the battery since it has valuable components)
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