Prius (Gen 2) :: Resonant Tone At Speed - Red Triangle And VSC Warning Lights?
Jan 14, 2012
I'm not sure if this is a general FWD car problem or a Prius problem but a week ago I noticed a loud, and reasonably pure, tone that seems to be coming from the front of my '05 Prius at highway speed I don't believe it is tire, alignment, or road noise The car knows that something is wrong because it occationally throws some error lights but refuses to reveal the specific code My current thought is drive shaft, axle, CV joint, or similar but I don't know if that can turn on the error lights Any thoughts? Could I have two independent issues?
The car has 157k miles and was in two minor accidents before I got it One required a rear bumper replacement, the other they had to pop out a dent from the front driver's side quarter panel The records do not indicate that any other parts were damaged I have owned the car for 25k miles
Error lights: A few days after the noise started and 30 minutes into my morning commute while driving at highway speed up a hill (20kW from the ICE) I got the big red triangle of doom, ((!)), VSC, and the mark on the red car on the MFD. Aside from the lights the car appeared to drive normally I checked the voltage on the MFD less than a minute after the lights came on and it showed 14.1V The MIL light was not lit, and the Torque app on my android was not able to pull a DTC but was able to clear the error and consequently turn off the warning lights
The next day the same warning lights popped up again and at the end of the commute I used a paperclip to connect pin 4 and 13 on the OBD port in an attempt to read the code When I turned the car on with the two pins shorted the red triangle lit but the ABS, ((!)), and VSC lights all blinked at 2 Hz indicating their systems were normal After turning the car on and off four times the red triangle went away
The error lights have now popped up four times, each time after more than 30 minutes of driving I have also had several trips longer than an hour where the lights did not come on
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Yes, they are all on. I have the red triangle, the check engine, the brake, and the vsc lights on. I put in a new high voltage battery this past summer so what now?
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My car (2006 Prius with 250k miles) was operating normally all day today. Still getting very good mileage around 52 mpg on average. Then abruptly, the big red triangle and few other yellow warning lights (check engine, VSC, and an indicator with exclamation mark in the middle) showed up while the car was moving around 20 mph.
Now, the car does not have much power and it was very difficult to speed up or going uphill. Turned the engine off and then back on. The symptoms still persist. The battery indicator was at only 1 bar. Let the engine run for a while and the battery indicator went to 3 or 4 bars. Turned the car off and then back on, the battery indicator went back to 1 bar immediately. Also the battery fan was running at high speed, even through I have just started driving for about 5 minutes.
Will do the following tomorrow:
(1) check 12v battery,
(2) use Torque SW to see if HV battery has proper values, and
(3) read diagnostic codes.
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I have a 2001 Prius with 150k on it. It has been giving me the triangle warning light and the car ! warning light. I can start the car and drive it, but sometimes when I press the accelerator the gas engine just dies and will not kick back in, unless I stop, turn off the car and restart it. (Issue seems to occur more in hot weather, could be a coincidence) When I start it the engine will run rough and shutter for less than a min, and then run normally.
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Bought a new Prius in 2005. In April 2010 (157,000km / 98000m) the triangle and engine icons warning lights came on. After about two weeks in the workshop, I was informed that the main battery went. Two months later (161,000km) the same warning lights came on again. Toyota agents informed me that now it is the water pump not circulating water through the engine. Toyota on its website states that the batteries should last the entire life of the vehicle. Is it possible that battery problem was wrongly diagnosed, and, that in fact, it was the water pump giving the problem in the first place?
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I have a 2005 Prius with 107K miles which I had taken off the road for about 2 months. Car ran fine previously. I just replaced the old 12v Battery with a new Optima replacement battery, changed the oil and filter, and have 1/3 tank of gas. Inserted the key into the slot, foot on brake, pressed the Power button, and, just about every warning indicator light is On (Brake, Red Triangle, Check Engine, (!), ABS, VSC, Traction Control) and the yellow exclamation mark with "Problem" message appears for a second on the Display, then a Red Car (!) appears in the upper left-hand corner of the display. Car will Not go into Drive or Reverse, and engine will not run, even when gas pedal depressed. Am I doing something wrong, or did I let the car sit too long?
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So I was driving for a couple of hours today in my recently acquired 2001 Prius, when the red warning triangle and the check engine lights came on. The car seemed to still drive fine (70 ish mph cruising). HV Battery? P3000 P3020 Error codes.....
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I was driving last night and my car Triangle Warning Light and Check Engine Light Went on along with on the nav screen a car with a ! mark in it came on. On The info screen the battery level was changing fast from fully charged to just about empty. The car lost almost all power going about 42 miles an hour. I was able to pull to the side and i waited 10 minutes then tried to turn the car on again. I was able to drive home and the warning lights were still on but at least my car had power. What could possible be wrong?
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There's an ad for a car quite far away from me and one of the photos shows the dash lit up like a Christmas tree. Is this normal during power-up or is it normal when there's something quite wrong?! There is no red triangle of doom shown; I'm unsure if that might be out of shot though. Car is quite high mileage with just over 270,000 km on the clock and is from 2006.
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I was driving down the highway today and the brakes light (!), vsc, and master red triangle warning lights came on, along with a car with an ! in it on the main display screen. There is no noticeable difference in noise, mpg, or breaking performance. From reading through previous forums a bad 12v battery seems to be a common problem. Mine was replaced ~8 months ago. About 2 weeks ago the serpentine belt snapped and the car was drove ~2 miles to my home where I replaced it along with the bad water pump and also the thermostat. Could that have caused my current problem. 130k miles on the car...
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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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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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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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2006 350 6.0, on startup the high and low 4x4 and brake lights come on the dash with a constant tone for a minute or two then stop.
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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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I have an 01 passat and when I was coming home one night my car has gone over a pot hole or hit something. I checked the car immediately but couldn't see anything wrong. But as I been driving it there is a resonant vibration in the car that becomes noticeable at 80km/h and above. At low speeds it feels normal. But once I get up to speed I get this vibration and its not a side to side vibration just a constant shaking. Sort if like if I were going over a a road that had very very small bumps. My friend had a look at it and thinks that one of the tires are done. But he's not really sure. What may be causing it?
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I got my jetta over a year ago, and during that time I've accidentally left the lights on a number of times. But just a few days ago it started making a tone when I leave the lights on. Is there some way to turn that feature on and off, or was something wrong that mysteriously healed itself?
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I have just had my LHS battery replaced after ages messing about trying to get it done at a reasonable price and level of skill and the car feels like it is new. Once they had cleared out the erroneous fault codes, everything came back to life. For the first time, the central locking system works as it is supposed to, and the centre display in the binnacle no longer flashes. So everything's great - except the TPMS.
The dealer reported that it was working fine, and so it appeared, for about a mile, then the warning tone and message flashed up and I was back to square one. The same thing happened this morning. When I started the car, the TPMS was working, and displaying the pressures on the screen, and after about a mile, the dreaded warning tone and error message. If you think your battery is low, do get it replaced.
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The red triangle warning light on our 2004 came on and went away again It has 100k miles If I take it to the dealer can they pull some codes and figure out why it turned on We have to drive the car to 600 miles for the upcoming weekend and I don't want to be stranded on the side of the road The car has 103,000 miles We just replaced the 12v battery so I know that is OK
I also saw the following things to check. Is there anything else we should check?
1 - Are any warning lights on besides the red triangle? For example, the red BRAKE light, the amber ABS and VSC lights, or the amber circular icon?
2 - Did you check the brake fluid level? If low, buy a new container of DOT3 brake fluid and replenish as needed This fluid will dissolve paint, so do not spill it
3 - While you are at it, check the radiator and inverter coolant levels by looking at the translucent reservoirs behind the radiator and next to the inverter If low, fill with Toyota Super Long Life Coolant
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A 2001 Prius is getting a warning triangle. No check engine light, and with my OBDII scanner, it shows there are no codes. I can erase and the triangle goes out, but it comes back on eventually. It seems only if the car is driven a long time/distance it comes on, indicating some heat issue perhaps.
The 12v battery is good, the radiator coolant is good, the inverter coolant is good and flowing. The washer fluid hose is broken, could THAT give the death triangle? There must be a way to have the cars display whats wrong with the fancy software and touch screen?
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Just this week the red warning triangle is appearing intermittently. I live over 200 miles from a dealer or Toyota certified shop- Light seems to come on only when I push the brakes moderately hard and is on for just a second then disappears- beeps when it comes on, too. I called the Toyota dealer and their answer is to "just bring it in"-- not able to "just bring it in" as it's again, 200+ miles away. One of the service reps said it might be low brake fluid- but the actual service tech said it was a failing ECU most probably - seems to be driving fine- should I be panicking about now?
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