Prius (Gen 2) :: Red Triangle Exclamation Showing On Dashboard - Error Code B1801
Jun 12, 2013
I recently purchased a second-hand Prius T4 (2007 model) and I noticed that the red triangle exclamation was showing on the dashboard. Initially, my local mechanic found a P3000 error code and a B1801 error code.
I ran techstream on it just last night and the main errors that came out were:
Current codes:
Srs airbag B1801 - open circuit in driver side circuit
Air conditioner B1421
Transmission control - C2318
History codes:
HV battery - POA84
I also have just found out that this car was in a major collision in 2012. The air bag light is constantly on, along with the red triangle exclamation, on the dashboard. The fuses for the battery fan kit, horn, and air bag needed replacing (I think all three but definitely two of these).
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I have a 2001 toyota prius with 130k miles on it. 4 days back the triangle of death showed up on the dash board. The car would run fine for 3-4 miles, then brake light (on the dashboard) would turn on.
Sometimes the car would run fine with the brake lights, other times it would really slow down. Turning the car off and then on again gives me another 3-4 miles before the same story repeats again.
This triangle of death used to appear earlier too(6-7 month back), stay for few hours and then magically disappear, but this time I m not so lucky.
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I have an 04 Prius that recently had the HV battery rebuilt with replacement of a couple of cells. It now is showing dash lights of Red Triangle, Small Exclamation, and VSC. Error codes are coming up on techstream v9 as :
P3000 curr
P0A84 hist
C1310 curr
C1311 curr
(all 4 of the above have asterixes by them )
B1421 curr (no asterix)
The car is running perfectly and seems to be fine.
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I have 2011 prius 1800cc.
My car dashboard display come ORANGE TRIANGLE WITH EXCLAMATION MARK light and message "HYBRID SYSTEM CHECK". Car has no problem in drive, every thing works but display computer (check consumption graph Charging wheel etc.) does not show.
When I press start, display button shows charging graph consumption etc, only for few seconds and go to msg check hybrid system.
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I`ve got 2006 prius , the car worked fine , there was no problem.
Today , while driving , Red exclamation mark , yellow exclamation mark appeared on dashboard , and red car with sign on the main LCD screen.
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I have around 68k miles on my 2009 Prius and just got a CEL, the Red Triangle with an exclamation point, an intermittently occurring VSC light, and an intermittently occurring yellow circle with an exclamation point on the upper dash display. I also have a car shaped icon with an exclamation point on my main display (ICE?). My scan tool shows P0093 as the only code.
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I currently have a 2008 Touring Package 6 with 180k and I am getting weird problems. I am getting the triangle of death, VSC, and yellow ! light. There is no check engine light. On the LCD I am getting the red battery + - icon as well as the car hybrid icon. I scanned it and I am getting a hybrid code P0A09 . All of the maintenance have been kept up and all fluids are perfect. No weird noises and the car is doing 53 mpg. It switches between gas and electric with no problems at all. Symptoms were yesterday with the lights. I cleared the codes and they would come back instantly. Today, I did the same thing and now everything is perfect. I am attaching the pictures of my dashboard lights that were on and the codes I was able to obtain in diagnostic mode.
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Had a company install fog lights on my replacement 2007 Prius I picked up after I totaled my 2008. When i went to pick the car up, the car wouldn't start. Showed the triangle of death and threw a code that the 12v was bad. Probably from having the car off and testing the fog lights continually - resulted in a drained battery. I picked up a brand new yellow top optima battery and thought this would resolve my issues. Nope, once the batter was replaced, the car wouldn't go into Drive or Reverse, only park or neutral. The current code is P0A0D. The shop is baffled. They removed all modified parts and still can't figure out the issue. They are currently replacing the interlock plug in hopes that this will resolve the issue.
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My boss has an 08 Tiguan and he got an error light on his dash coming to work today. It's yellow with an exclamation mark in the centre. On both side's there's a solid line and on the bottom it's got a "squiggly" line.
What it might be or if this is something known about them? He states there's no performance loss or anything acting up at all. Short of bringing it to a dealer which will be closed by the time we're both off work I thought I would start here.
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I have a Toyota prius 2008 with 130,000 miles. I kept getting red triangle sign, the car will slow down and will need to pull over, shut it down and restart. I went to the dealer. First they diagnosed 12V battery issue, so we got that replaced. The red triangle sign kept coming, so we went to the dealer again, they replaced transmission fluid. They said it was low on transmission fluid. The red triangle sign kept coming. So we went to the dealer again. They said it is transaxle internal problem. The diagnostic code is P0A37. I have a couple questions. In California, what is the warranty for Transaxle problem. In some posts I saw 180,000 miles, 10 years. The dealer said they called Toyota and Toyota does not cover the repair. It is a costly repair. Second , is this code really requires Transaxle replacement.
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Two issues are bugging my 04 Gen 2. The check engine light came on a while back, and the code I'm getting when I have it checked is 505, and I'm told it's the idle control system.But then I've been told that the Prius doesn't have an idle control system. At first it came on intermittently, and I noticed that when it was on the ICE did not turn off when sitting at a light or at low speeds, etc. It made sense to me that it might be something with the idle control, but I'm not an engine person. Now the light is on all the time. I haven't had the time to get to the dealer yet, but I suspect that's about to change, due to the next issue:
When making sharp left turns, I'm getting a very brief red triangle/beep/warning on the MFD that says "problem!". Sometimes it is so fast I don't even see the MFD warning.
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Driving my 2008 with 189,000 miles on the congested "freeway" the ominous red triangle and the yellow exclamation next to it just lit up. A quick scan of the OBD showed no error codes and good auxiliary battery, engine coolant Temps etc. And good gas mileage, engine vacuum. I had replaced the spark plugs with new iridium two months ago. When I stopped and checked the hybrid converter had good levels and turbulent flow. The oil had been changed a week ago and checked again at lunchtime. Now only the red triangle shows.
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I have a 2005 Prius. The red triangle and the MIL check engine light came on the dash AND a image came up on Information screen: a car with an exclamation point.
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My Prius has about 145K miles on it and use it on a daily 130 mi round trip commute. Recently, a I got a Red Triangle w/ Exclamation Point and the displayed showed "Problem". I took the car to the dealership and they stated the problem was caused from a low oil level. The dealership changed the oil and I was good to go. 3k miles later, I got the same error and noticed my oil level was low once again. It seems that my Prius is burning oil at rate of 1 quart per 2500 miles driven. What can be causing this? Are there any remedies I can try before changing out the piston rings?
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I am getting the red triangle and the little car with exclimation point on the MFD. Interestingly all of the amber lights are on and the brake light is on BUT the parking brake is not set.
Here is what happened --my hybrid battery died a few weeks ago so I ordered a replacement through Summit Racing (Dorman Battery). The car started and drove but I had to rest codes to keep it alive (just to get it home). Last moved it 3 weeks ago and removed the old battery.
So long story short -- while I was waiting for the new battery I repaired some other issues -- BTW I am not new to this, I have the tools and have done these repairs on conventional cars many times.
1. Leaking axle seals -- replaced L and R seals
2. replaced L and R half axles (drivers side was rough so replaced both)
3. Found drivers side wheel bearing to be rough so replaced L and R hubs
4. Replaced L and R struts and strut mounts.
5. Drained and refilled trans axle with Toyota W (TF) 4 qts
6. Installed new 12v battery (currently producing 13.4v)
7. Replaced rear struts.
8. Replaced L and R front rotors and shoes -- they were off anyway so why not. No loss of fluid!
9. Removed and cleaned most interior parts -- door panels, seats etc...
Installed new HV battery and fired her up to the usual wheezing, whining and clicking sounds. But NO engine -- just the triangle -- problem statement and and the other above issues.
Checked the following -- inverter pump is circulating nicely, though maybe battery electronics -- so I placed the old battery back in (it was started with the old one 3 weeks ago) -- nope same issue so not those electronics. Traced all wires, plugs and connectors related to hybrid system -- all seem to be in place.
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2001 with about 117,000. Just had it in to get the transaxle fluid replaced for preventative measure. Now I'm getting an intermittent triangle/exclamation warning. It seems to go off if I let it sit, mostly. Runs ok for the most part. But when that comes on, it practically limps on very little power.
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I was driving on the freeway in houston yesterday and it was about 30 degrees. The low temperature light was on... Does it make a difference when it is cold? Why would there be a light to tell u that it is cold outside?
Anyways as I was driving on the freeway the red triangle with an exclamation mark came on and disappeared. Then a minute later it went on again and on the navi screen shows high coolant temperature symbol on it. But then it would turn off right away too so is this normal because I was kind of slowing down on the freeway and the book did say something but I don't think it was an excessive speed or anything.
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I'm at 138,000 miles on my Prius, just got oil changed, 12v replaced in 2014, water pump replaced in 2015. I
I've noticed over the past couple days the mpg has gone down from 39 to 36. Yesterday I was 25 away from my work at gas station and when I pulled out a red triangle w/ exclamation came up along with check engine, VSC and orange exclamation with circle around it. I drove to my work and it didn't seem like performance was different.
When I got to work I turned it off and back on and all lights were still lit. After my shift I went to leave and it was same thing. When I went to reverse it felt like a tug, I pulled about half way out then pulled back in cause I didn't want to get stranded.
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Check engine light, red triangle with exclamation, and on the monitor a red box with a picture of a car with exclamation came on after changing the rear brakes. I checked the water flow control valve and water pump. Don't know what else to check.
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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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So at about 147k miles, triangle comes on. It's the icon on the right with the car and exclam! mark through it. Turned off radio. listened to car and I could swear that it was running differently, but it might be in my head (I was kind of freaking). Drove to my Prius guy in the I.E. (20 miles) car seemed to act OK. Was using elec engine when needed and gas engine was fine. Was a bit shocked by how good the car was running but I was sure something sinister was happening and at any minute the car would melt. After 1.5 hours and a 20 mile test drive.
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