Prius (2004-09) :: Red Triangle Warning Light Started Coming On When Stopped
I have an 06 Prius with about 170k miles. The hybrid battery was replaced shortly before I bought the car last year.
About a month ago, the red triangle warning light started coming on when I'm stopped. It usually stays on for a few seconds once I start moving again. The MFD just says "Problem" for a few seconds, then displays the icon for a headlight. Once the light clears, the MFD goes back to its normal display. Originally, it was lighting up once every other day or so, but now it's lighting two or three times per trip. I'm going to have to do something about it, but I'm trying to get my head around what to expect.
My understanding is that the red triangle could mean anything from "The door is open and you're moving. Please close it." to "Your car is about to melt down! Seek cover!". I have an Automatic OBD dongle, and it's not reading any diagnostic codes. But as I understand it, there's a whole different set of diagnostic codes that a "regular" OBD reader won't catch.
I keep seeing reference to ScanGauge devices -- do they read the second set of diagnostic codes? I talked to a mechanic in the area who will read the codes for about $100. Is the mechanic likely to be reading the codes with that tool/is that what a dealer would use to read the codes? Is the dealer likely to charge to read the codes?
Prius (2004-09) :: No Power / Low Battery On MFD / Red Triangle Light
I changed my oil, oil filter, air filter at 90k for a trip to Miami this past weekend. Uneventful on the way up. On the way back, stopped and did some shopping before hitting alligator alley to come back home. As I got on the alley after paying the new $3 toll my 05 prius with 90k miles on it would not go over 65 with my foot on the floor and the battery on the mfd was in the pink. So I drove to the nearest exit, checked the fluids etc, all good. Got back on same thing so I put on hazards and stayed on until i could get off on a much slower road. I was going about 55-60 and it would go no faster.
As I got to a place I pulled over DC'ed the negative battery cable and let it sit for a half hour. I then attempted to get going and it seemed to be running fine until I attempted to pass a car and the car seemed to lock up and lose all power, check engine light came on and the red triangle light came on. I pulled over and let it sit again. I then got it to a gas station with the check engine light on. I put a few gallons gas on and tried to limp it home. It made it home and the battery seemed to recharge back to all the blue it can get to, but has yet to hit the green.
Prius (2004-09) :: Losing Traction Battery Charge In Morning
I have a 2005 Prius with about 170,000 km on it. I bought it two years ago used at 150,000 km. Everything worked fine for about 8 months, them I noticed the main battery started to drain on first start in the morning after driving a short distance. It would drop down to about 2-3 bars most days, especially on cold mornings. After reading on this forum for a bit I turned off the key locator, and it went back to normal for about 6 months, at which point it started dropping again. I haven't had any warning lights come on yet.
I replaced the 12 V battery, as recommended here with an Optima Yellow Top, even though the original one showed no voltage drop. It actually tested higher than the new Yellow Top I got. My fear is that the traction battery is losing modules. I'm planning on testing them soon.
Prius (2004-09) :: Hybrid Battery Runs Flat Every Morning - No Electric Power To Accelerate
It's been like that for a a while now. Every morning the hybrid battery would run down to last bar. When I start the car it would be 3/4 full and it would keep draining even though I'm on flat road.
The overall mileage has not changed much but its annoying with the battery goes to last bar and there's no electric power to accelerate.
Prius (2004-09) :: 2007 - Red Triangle / Battery Low
I had my Prius check out and gave me these trouble codes couples battery's low he has a red triangle ....
P0A78
P3000
P0A80
P03014
P0315
The battery's rating 13.5 volts. Will always trouble codes go away after replacing the battery I added inverter to it because it was it was dying after 50 miles per hour then it slowed down??
Prius (2004-09) :: Still Red Triangle After Plugging Battery Right?
I recently cleaned all of the corrosion off the copper bus bars on my traction battery. When I got everything put back together I went to start the prius up and got the red triangle. I then remembered that I forgot to plug the master orange switch back in. After doing so I still had the red triangle so I turned the car on and off a couple times and it went away. Is this normal behavior from forgetting to put the master switch back in an attempting to turn the prius on?
View 6 RepliesPrius (2004-09) :: Red Triangle / CEL And Red Car At The Top Of MFD - Hybrid Battery Failing
i have a 2006 with almost 200k miles. Got the red triangle, check engine light, and the red car at the top of the MFD. I ran the codes and got P3000. Does this sound like traction battery failure? The car still turns on and ICE still cycles off and on.
View 19 RepliesPrius (2004-09) :: Red Triangle Of Death (P0A80) - HV Battery ECU?
I've pulled the HV battery from my 2007 Prius with 144, 000 miles given recent Red Triangle of Death (P0A80) and looking to replace battery pack but want to rule out the ECU. I've searched the threads and found mention of testing the ECU but wasn't clear.
How to test the HV Battery ECU in or out of the car? Using a volt meter and light bulb, etc......I would really like to rule out the ECU before putting dollars in a rebuilt battery pack.
Prius (2004-09) :: New Hybrid Battery - Red Triangle Pop Up Intermittently
I have a 2007 Prius with 107k miles. Last July it had a minor drivers side front end collision. Last November it had the hybrid battery replaced. I believe all this is unrelated just putting it out there for information.
I am currently having the red triangle pop up intermittently. When it does a "problem" message will display on the MFD. This seems to occur most often after a long downhill or when the Energy display is showing the hybrid battery is nearly full.
The hybrid battery seems to be functioning normal and the car is driving normal and has expected fuel economy. I do have a headlight that cuts out occasionally but no other noticeable electrical problems. I do not have a diagnostic device to get the codes.
Prius (Gen 2) :: Main Red Triangle Light Came On - New Hybrid Battery Required?
I have a 2005 prius with 84,000 miles. The car is running fine but the main red triangle light came on. I took it to toyota and they said I needed a new hybrid battery.
View 10 RepliesPrius (2004-09) :: 2004 - Red Triangle Came On After Changing 12V Battery
I have a 2004 Prius, the Red triangle came on intermittently and went off so I changed the 12V battery last night, after changing it the red warning light went off and everything seemed okay. Today while driving, the warning light came back on. I checked the battery voltage via diagnostic mode on the cars computer and the specs are what they should be. I noticed the following error codes in the computer:
01-D5, Sub-code: 190-30-8
01-DC, Sub-code: 190-B7-8
01-DC, Sub-code: 1C6-4D-F
Not sure if these are what is causing the problem.
Prius (2004-09) :: 2006 - Triangle Of Death Came On, Battery Died
Got the triangle of death after letting the car set during my 2 week vacation. P0A80 and Battery block is 14.17V all the rest above 15.35. That's a lot of money to repair a car. Not sure if I want to cut my losses and move on or replace it and drive as long as I can.
View 19 RepliesPrius (2004-09) :: Triangle Of Death Showing And Code For Bad 12v Battery
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.
View 19 RepliesPrius (2004-09) :: Red Triangle And VSC Warning - 12 Volt Battery Not Charging?
I've seen this a couple times but always made it home with the Red Triangle and VSC warning. A year ago, I blamed it on the OEM 12 volt battery and eventually replaced it with a Optima Yellow Top. No more problem until today. Day time driving with my Plug-in Supply 10k rechargeable conversion performing normally. City driving raining but normal Western WA conditions. Red Triangle and VSC warning. Other systems operating normal.
I knew, from previous experience that the Prius operating systems would continue to work only until I turned it off. I did turn off the Plug-in Supply controller to isolate that system and observed that the OEM traction battery was at a fairly high state of charge and the ICE was still providing the normal amount of assist to the traction battery through normal street and driving conditions.
I should have driven the 20 + miles to get home, even with the Red Triangle warning. I had done that in the past with the old OEM 12v battery. But I needed gas and went to a station and turned off the system ICE out of habit. Sure enough, the system wouldn't go back into Ready but would go from Park to Neutral. Since it was rain hard now, and I was calling my road service, I ask for a Flat Deck Tow home rather than a jump start.
As soon as I got off the tow truck I put my battery charger on the Yellow Top and it only read 11.7 volts. It's still on charge now. Now I'm wondering why the power conversion system wasn't charging the 12 volt battery or is my 1 year old Optima bad?? Or is there something about my driving conditions/plug-in conversion that is effecting the charge of this battery. I did a 2400 mile road trip to So. Calif and back to WA without any problems. Car has just 98169 miles right now. About 10k miles on the Plug-in Supply conversion.
Prius (2004-09) :: Red Triangle / ABS / VSC And Battery Fan Kicks On - Transaxle Slippage
I have replaced a bad module in the HV battery and balanced it. Inverter coolant pump has been checked and inverter coolant has been replaced. Engine coolant has been drained and refilled. (Both coolant jobs followed Haynes manual guide including bleeder valves.) Transaxle fluid is full.
After each step of troubleshooting I have done a test-drive. Warnings come on consistently within 2-2.5 miles, day or night. I do not have a scan tool, but I do have the trouble codes from Toyota (all prior to my repairs). Is it possible that a bad ECT sensor could trigger all of this?? Is there something else I can check?
Prius (2004-09) :: Triangle Of Dead With The Code, Replace Battery Pack
About 1500 miles ago, I replaced a cell in the battery pack. Now the triangle of dead is back and the code is "replace battery pack" again.
I tested all the cells and here are the results.
(the previous one I replaced was 4.5 volts, very low and easy to find)
Prius (2004-09) :: 2007 - Triangle Of Death / Hybrid Battery Failure
I have an 07 Prius which I bought used in 2011 and which has been fine (except for some A/C work last year) but got the 'triangle of death' this morning and having towed it to my regular shop, they tell me the code (they couldn't give me the number) simply said 'replace hybrid battery'... the car has 102,605 on the clock.
View 9 RepliesPrius (2004-09) :: 2005 - Got Triangle Of Death And Other Warning Lights - HV Battery And Fan?
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.....
Prius (2001-03) :: 2002 Died With The Main Battery Light And Triangle Of Death On
I bought my 2002 prius with 120000 miles. Last night it died with the main battery light and triangle of death on. I haven't taken it to a dealer to have the codes checked out you, but will do it soon. My daughter was driving it when it happened and said the car started shuttering and died. She was able to drive it a few feet at a time before it would die again. Does this sound like a HV battery problem? I will be digging into it tonight.
View 19 Replies