Prius (Gen 2) :: Hybrid Battery Cooling Fan Running Constantly With Lots Of Warning Lights
Mar 15, 2014
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 can usually find what Im looking for with a quick search but I have had no luck with this issue.
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My escape has over 200k miles. My battery light dimly flickers constantly when running. there is also a misfire that seems to correspond with the flicker. the faster i rev the engine, the faster the battery light blinks.
My battery constantly shows 14.1 volts. the battery is new the alternator has been replaced twice in the past 2 years.... I noticed when i use my rear washer fluid, it spills into the car on the passenger side kick panel inside the vehicle.
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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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The past week I have noticed my battery cooling fan running constantly on all highway trips - 20 mile one-way trips going 65-70MPH.
The performance of the battery doesn't seem be degraded, but it seems like the battery is hopping more between charging cycle or whatever you would call it , where you watch the instantaneous MPG on the highway drop down for 10 seconds to 40-50, then back up to 60-70.
The car is a 2011 Prius III. It did not run like this earlier in the summer in the same weather conditions, I would hear the fan maybe once every few weeks in hot 90 degree weather. Now I hear it constantly. This is my first summer owning the Prius so this may be normal, but I wanted to double check with you all if this is a sign of premature traction battery death or something.
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My dad has a 2015 Prius v Three (lowercase v and three, not III). He just hit 7,500 miles. He had the service done at 5k miles. The error message that popped up on the dash today says, "Maintenance required for hybrid battery cooling parts at your dealer"...
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I've decided the first issue w/ my new-to-me jetta I want to focus on is the cooling fan constantly running. I suspect this is potentially related to the temp gauge not reading anything, which I suspect might be because of the coolant temp sensor.
So basically, when I turn the key to on (I'm pretty sure it's on, not start), one of the cooling can comes on. It's the fan on the right side as if you are sitting in the driver seat. I've been looking at the wiring diagram for this issue as well, and the only other thing I can think of that isn't a computer involving issue would be the thermo switch. But it seems like both fans should be coming on in that case, and it's definitely only the one fan that is coming on.
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My hybrid system warning light came on last night in my 2005 Prius with about 89,000 miles. The car may have run out of gas (I wasn't driving). This car will only take about 8.5 gallons when the fuel light starts flashing. I started it this morning, light was still on, only 2 bars on battery, my car usually runs near the green, and the gas engine stalled after about 30 seconds. The gas indicator was flashing, so I added a 1/2 gallon I had at the house, and unplugged the 12v for about 10 minutes to clear the system. Upon restarting, fuel light was still flashing, but no hybrid warning light. Drove a few miles, filled up with gas, and drove another mile.
So my question, could running out of gas and driving a very short distance (light came on as my wife turned into our driveway), cause this warning light to come on? If so, will there be any lasting effects? Did unplugging the 12v battery clear the computer codes, or can I still get these read to learn more about what happened?
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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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Along with a high idle problem that's driving me a little bonkers on my 2002 3.0 V6 Escape, I've noticed that the tranny constantly hunts up and down a little when I'm running about 55-60 mph. Today I got a code P1120. Makes me wonder about the TPS... I replaced it during routine maintenance about a year ago with a unit from carquest, so I don't have the original to replace it with for troubleshooting. Will a TPS also cause a high idle, or are those 2 issues typically not related?
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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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I replaced my hybrid battery of my NHW10 a year ago. now recently it shows the warning triangle. Once it went off after a long drive but now its permanent. is there a way to Diagnose what is the cause of this? If its a Hybrid battery issue, will it go off if i replace the bad cells?
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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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So this has happened to me a few times now in the cold temps. For my job I'm left to sit and idle every now and then after over an hour of driving.
I'll park my car, ICE will turn off, ICE temp at 195. Sit with heat on at 65 degrees. After about 10 minutes the engine temp will drop to about 110, which the ICE will start and warm up to about 135 and turn off. Hybrid battery stays above 55% and normally hits about 65% on every ICE start. (I have extra instrumentation installed to monitor)
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So I got a 2008 model, only owner. It has 107K miles. I've noticed something the last couple months now. When I park the car in the garage after coming home from work it has a full charge, about 3 bars below top, it's at the max of the blue color.
When I start the car in the morning it still displays the same level. But after driving down the road about 3 blocks it seems to update slowly and drops the level, sometimes down to the brown, about 3 bars high. The car will run rough for a while almost every morning now since it's not using the hybrid battery to smooth things out.
Ever since owning the car I've noticed it can run rough sometimes normally, like when you're at a train crossing and the battery drops to 2 or 3 and the engine powers on to charge it up a bit. When I drive away you hear the engine a lot louder than usual as it seems to be running on engine only until the hybrid battery gets sufficiently charged and you feel a lack of power as you accelerate.
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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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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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This afternoon, after driving about 150 miles, I came home and shut off my 2001 Prius. It was sitting for about 20 minutes before I turned it back on to drive off. Almost immediately, the hybrid warning light came on on the MFD, the red exclamation mark light illuminated, as well as the check engine light, and the motor shut off. I popped the hood, and could hear a high pitched squeal coming from near the inverter. I called my dealer to ask the service department what I should do, and they just told me to bring it in and they will take a look at it. I live over an hour away, so I don't want to bring it there if I can avoid it. I then shut it off and let it sit for a few hours.
After reading about the possibility of the auxiliary battery being bad, I went and turned the Prius on, and then shut it off several times to reset the hybrid warning light (I had to do so in order to access the aux battery information through the MFD). It turned on without incident, and shut off fine, and after being reset the hybrid warning light shut off, as well as the red triangle light. Then, I went through the process of pulling up the battery voltage information through the MFD.
With the car off, and the lights and fans off, the battery voltage read about 10.0-10.5 V. With the lights and fan on, the voltage dropped to about 9.5 V. After getting those readings, I drove it down the road a little ways, just going about 20 mph. It seemed to work fine. The check engine light is still illuminated. With the motor running, the voltage reading was 13.2 V, and then when I got back from my test drive and shut it off, the voltage hovered at 10.6 V with the lights and fan on.
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My Prius yesterday while driving slowly (under 10 mph) all the dash warning lights came on(triangle, cel, trac control, brake). the gas engine started and the message came on that says: "check hybrid system". Today when I went out to check there only two warning lights on (triangle and cel) with the same message displayed. My question is can the vehicle operate without damaging anything if I drive it as is? I have read on several threads that the engine will not start if the hybrid motor(s) are not working. Since my engine starts and runs I have to believe the motor(s) are working.
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i have a 2001 Passat & my ABS & Brake warning lights have come on with no other symptoms. Brakes work fine - local mechanic can find nothing wrong!!
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