Prius red triangle no codes

2007 Prius red triangle, p2103 code, advice needed. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by gstar, Sep 11, 2021. ... Location: florida Vehicle: 2007 Prius Model: N/A. I have a 2007 Prius. The other day the red triangle of death appeared along with an array of other lights on the dash. Shortly after the car ...

Prius red triangle no codes. red triangle warning light + car won't start. Discussion in 'Gen 2 Prius Main Forum' started by cali_boi, May 12, 2010. cali_boi New Member. Joined: May 12, 2010 1 0 0 Location: ... Founded in 2003, PriusChat has been the go-to spot for Prius, hybrid, and EV discussion for over 10 years. PriusChat is the one of the largest privately-owned car ...

2006 Prius. Model: N/A. Hello, A red triangle light came on on the dashboard of my 2006 Prius. Also, there is a beep every time I turned the car on coming from the MFD along with a message that says "problem" and it is followed by a red car with icon on the top left corner on the MFD. I noticed the HV battery meter on the MFD only showed two ...

Jan 8, 2023 · The red triangle warning light on a Toyota Prius indicates that there is an issue with the vehicle’s emission control system. If this light comes on, it means that the system needs to be reset. To do so, turn off the engine and press and hold the trip meter reset button for about 10 seconds until the light goes out. 2) Remove the two, 10-millimeter bolts that connect the APA to the Prius. Pull the whole thing out. If you wrap your left hand around the top of it and let the bottom bolt-channel poke into your left forearm, you can "floor it" with your right hand and enjoy watching the clever mechanism move.My beloved 2006 Prius with about 117,000 miles on it needs to go to the shop (I'm not a DIY mechanic). As I was driving home yesterday from work, all of the sudden the red triangle, VSC, check engine and a little car with an exclamation point on it on the display came on about 2 miles from home.Yes. The HV isolation fault kicked in again, so it probably won't go ready again until you disconnect the 12v again. Hopefully it's not the transaxle failing, but the only way to know for sure is to get the codes and subcodes . #6 TMR-JWAP, Dec 26, 2019.Everything Toyota Prius! Currently private to support the proposed changes to third party apps. Advertisement Coins. 0 coins. Premium Powerups Explore Gaming. Valheim Genshin Impact Minecraft Pokimane Halo Infinite Call of Duty: Warzone Path of Exile Hollow Knight: Silksong Escape from Tarkov Watch Dogs: Legion. Sports. NFL ...

Bought my first Prius a week ago and having an issue already. 2005 with 160k. When I'm on the highway the red triangle exclamation light comes on the dash with a red thermometer on the nav screen. No check engine light. Sometimes the heat in the cabin works well and then it seems to go cold. Coolant reservoirs are full but there is a small ...plug in ob2 reader -erase ghost codes from module -push brake & start button & the engine turns on, ready to go When I turn on the car normally, the red triangle + other lights will be on, once I delete the "codes" with the ob2 reader, they all disappear & the car is ready to go. when I shut it off, I have to do the same steps all over ...My beloved 2006 Prius with about 117,000 miles on it needs to go to the shop (I'm not a DIY mechanic). As I was driving home yesterday from work, all of the sudden the red triangle, VSC, check engine and a little car with an exclamation point on it on the display came on about 2 miles from home.> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, ... Attachments are working again! Check out this thread for more details and to report any other bugs. Red triangle, no codes. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mohater, Aug 13, 2020. Page 2 of 2 < Prev 1 2. mohater …No trouble code but intermittent Red Triangle. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by zytra, Jul 25, 2016. zytra Junior Member. Joined: May 12, 2016 78 2 0 Location: california Vehicle: 2006 Prius Model: II. Hi Guys, Seems like issues with my 06 prius battery are back, however this time it is rather strange ...

jadziasman Prius owner emeritus. In my 2005 with 133,000 miles, I recently have symultaneously been getting the big ! red triangle on the dash and yellow headlight symbol (with small pointing arrows at either end of symbol) on MFD - see attached. This then goes away but returns, usually after traveling the rural washboard paved local roads.Many Prius drivers have reported the most common cause for a red triangle light is an issue with their battery. Typically, the codes that come up after a diagnostic are P0A80 and P3000. The P300 code refers to the Prius' battery control system. When this code appears, the problem is typically caused by several sources, but it means there is an issue with the HV battery's ECU. When it reports ...Top Repair Three: P1121 Coolant Flow Control Valve Position Sensor Stuck. Another contributor to our check engine light list of failures and a common one is the P1121 code. This code means one ...the red triangle keeps coming on with the water temp light but goes right off but no heat. Replaced the thermostat it worked for about a week. I have a obdII no codes. Took to a shop they said 12V and hybrid 49% both replaced 3.5 years ago.I hooked it up to a mini-vci with techstream and found the following: P3009-526, C1310 and B1421. The car will only start if you reset codes, then after a few minutes of running the red triangle comes back. The car runs perfect with absolutely no shuddering and gas mileage is normal. -Tested all 28 modules.

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ok got some codes finally with the TIS.Not good ones i think 1 Hybrid Control POAA6 Detail Code 2 - 526 2 ABS- C1241 - Low or High Battery 3 ABS 1310 Detailed freeze 156 HV Malfunction, Capacitor Mode -OFF 4 ABS 1378 Capacitor HV -OK, also by dr prius and torque cells look good , impedence? was 19 across all 14 Gateway showed a B1271 which i took was from when i replaced the meter screen, "not ...My first step will be to change the oil and check tire pressure to see if it fixes it. Is is a red triangle with ! Inside or is it yellow (!) Yellow is your tire pressure sensor. Mine has been on for years. Red triangle is low oil or hybrid battery malfunction. I had the red triangle, but auto zone read it as no codes. Had a toyota tech read it ...> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care ... 2007 Prius - Battery not charging, no acceleration, Red triangle and other warning lights. Discussion in 'Gen 2 Prius Care, Maintenance and ... and the check engine light. Despite all of these I can get no codes when I try my scantool. I bought a Tachyon H1, with the idea that this ...> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! ... The Red Triangle, VSC, and CEL came on today. From a little research on here I thought it might be the 12v battery so I popped it out and took it to O'Reilly to be tested. ... and that there were no codes, so I assume ...

This morning I started my 2008 Prius (approx. 31k miles) and found the big red triangle with an exclamation mark and check engine light turned on. I drove my car <1 mile to a smog check station where they ran a diagnostic on it and came back with the P0A9C code. A quick internet search turns up that this is "HYBRID BATTERY TEMPERATURE SENSOR "A ...There are a lot of big hills in the SF area, and that could easily cause a real or phantom out of fuel situation. The red triangle is like Microsoft's BSOD (Blue Screen of Death), where it doesn't really make any difference why it's there - no matter what you are SOL. Tom. #5 qbee42, Sep 18, 2007.The Red triangle of death is a major fatal fault in the car. Usually because either the inverter coolant pump has failed or the hybrid battery has failed. ... You must get a Prius capable OBD code reader to harvest these codes that will tell you exactly what the car is unhappy about anything less is a waste of time imho.In disconnecting the 12 V battery you have deleted any codes that were present. 12.5 V is not bad and certainly not a reason for problems. If anything, all you need to do is put that battery on a charger and charge it up. #3 dolj, Jan 9, 2020.> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Generation 1 Prius Discussion > Attachments are working again! Check out this thread for more details and to report any other bugs .An easy way to check battery voltage would be to press the on button twice with your foot OFF the gas. Then hold the “info” button while turning the headlights on and off three times. The display will open a diagnostic thing and in there you can see the voltage. So my 05 prius just had the Red Triangle, check engine light, VSC and (!) lights come on. ... touota prius code p0a08 12v charging from convertor/invertor system not ... Now weeks later and many hundreds of miles climbing the Grapevine and on the 405 congestion, no more red triangle. Having just passed the 190,000 mark, it looks like it has fixed the problem. #7 dragonspeak , Apr 10, 2015Red Triangle - Check Engine - VSC - no codes and car runs fine. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Bossbear, Feb 1, 2019. ... Founded in 2003, PriusChat has been the go-to spot for Prius, hybrid, and EV discussion for over 10 years. PriusChat is the one of the largest privately-owned car forums left on ...A person can read Trane furnace codes by looking at sites such as FurnaceReviews.net. A Trane furnace shows the owner that there is an issue within the furnace by using a red blink...The members here are really helpful. I've got a 2008 Gen 2 with 131k miles that lit up the dash with the red triangle, vcs and display warning, according to my son who was driving it at the time. By the time I saw it, the VCS was not lit. I used Techstream and got the following codes: P3000 P0A80 P1151 P1116 B1443 First thing I did was check ...

About a week ago red triangle, vsc, and check engine light came on. Changed oil (4,800 miles since last), lights still on. Went to Auto zone, checked codes but nothing came up. For no real reason, I decided to reset the codes. They stayed off for about a week then just came back yesterday.

Now for my 2005. I month or so ago the RED triangle came on and I put my scanner on the OBD and no codes were shown. I was thinking about buying s new Nexcel for this car anyway so I ordered one for it. Yesterday I installed the new 14 cells and all went good just like the 2004. I now still have the same problem with the RED triangle coming on.2005 Prius red triangle, orange brake lights while driving. Turned car off when I got home won't restart. Used BlueDriver code reader. ... . 2 Antilock brake codes C1953 and P1000. both codes stated "no code definition available" thank you for any help. #19 Randall 1, Jul 4, 2017. ChapmanF Senior Member. Joined: Mar 30, 2008 23,250 15,060 0 ...I tried it on my other (working) Prius and if you start it with no foot on the brake pedal the dash looks the same, the LED on the start button stays orange and the OBD also reports no codes. The only difference is that it doesn't have the red triangle of death on.I stopped and restarted my 2005 prius, but red triangle and check engine light still on. Car drives the same, no problem at all. My tank was half full, I pulled to gas station and filled the tank, and the lights went away. ... Anyways I just connected the OBD II tool and it says "no codes found". Very strange. #6 aanimate, Oct 7, 2009 ...I have 2003 Gen 1 Prius with 198,000 miles. last week the red triangle appeared and the cooling fans in the trunk kicked on. I checked the coolant...The red stuff all over everything is 100% synthetic grease to prevent corrosion. Works great. The extra red lead on the 12 volt terminal is for a towing light aux power supply. Sometimes after you restart the car it will show alot of codes that's ok just shut the car off and start again there will be no codes.Well the P0420 code came back after <10 miles of driving, maybe a minute or two after entering the highway a second time. I checked the code right after I parked and saw the (downstream) O2 voltage was holding at 0.78V steady. I took it around the block at low speed and it saw it did jump around a bit to 0.72v, 0.6v, later as low as 0.41v, 0.3v.12 votes, 19 comments. 39K subscribers in the prius community. Everything Toyota Prius! ... I'd get an OBD II scanner and check for codes. It can mean the coolant pump has failed, for example, which can lead to destroying your engine. ... My 2005 is still running strong at 162k, everyday I'm waiting for the imenent red triangle of death lolRed triangle and lights came on while driving and was in limp mode. This happened like 5 times before, but re-started after a minute or so These sound like symptoms of a overheating inverter. Most often due to the inverter cooling water pump failing. ... whether it be a bad techstream cable or a code reader that is not Prius compatible. Until ...165 Answers. The red triangle is the Master Warning light may also be referred to as hybrid system erro warning light. You must have had an intermit problem with the battery system for the light to come on and go off. You should take the car to a shop or dealer that works on them systems to see if it stored a code so you will have an idea what ...

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The Red triangle of death is a major fatal fault in the car. Usually because either the inverter coolant pump has failed or the hybrid battery has failed. ... You must get a Prius capable OBD code reader to harvest these codes that will tell you exactly what the car is unhappy about anything less is a waste of time imho.I have two codes: C1310 and C1259. 2007 prius. No the red triangle of death, VCS, check engine light and yellow - Answered by a verified Toyota Mechanic. ... 2005 Prius codes C1310 C1259. Car runs fine and the battery shows charging. Concerned about the future operation. Also VSC, Red Triangle, Check Engine and Brake Light on.2007 Prius red triangle p2103 code. Jump to Latest Follow 5K views 2 replies 3 participants last post by cj1 Sep 11, 2021. J. jazzgitah Discussion starter 4 posts · Joined 2021 Add to quote; Only show this user #1 · Sep 11, 2021. I have a 2007 Prius. The other day the red triangle of death appeared along with an array of other lights on the ...2005 Prius. Model: Two. 48mpg said: ↑. 2005 with 171,000 miles. The battery pack cooling fan is running all the time, red triangle check engine and ( (!)) on the dash,yellow ( (!)) PROBLEM then red ( (!)) on the mfd display. I see the code is for the first pair of modules but I have green bars on the display,MPG has not dropped the battery ...The red triangle warning light on a toyota prius is the check engine light and should be brought to a dealership, it could range from low oil pressure to something more serious. likeAlternative Like> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Attachments are working again! Check out this thread for more details and to report any other bugs. Red Triangle no code. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Hakam, Apr 10, 2023. Hakam Junior …Dear Prius community, I just bought a 2007 Prius, [package 6 if that matters] with 42k miles on it. I was driving it the other day and this check...My 2007 Prius with 209k miles shows the Red Triangle of Death and a bunch of other codes when the 12v battery is low (has the car been sitting over two weeks?) or the oil is low and sloshes during a turn. The Prius will quickly eat synth oil (which my son put in, thinking it is 'a good idea') but is fine with the recommended dinosaur oil.no - but I'm only using the free version of dr. prius. i do have the paid version of torque pro. nither of these show a battery or engine code - even though red triangle and little headlight wobble symbol are displayed. (maybe it's just that headlight leveler thing).Red Triangle but no OBD code. Discussion in 'Newbie Forum' started by Mukhtiar, May 7, 2019. Tags: gen 1; Mukhtiar Junior Member. Joined: Jun 18, 2017 4 0 0 Location: Espanola New Mexico ... Founded in 2003, PriusChat has been the go-to spot for Prius, hybrid, and EV discussion for over 10 years. PriusChat is the one of the largest privately ...> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Server migration is complete! Check out this thread for more details and to report any bugs . ….

2004 Prius. Model: N/A. P0A2D/249 is clear, it had a broken red wire at the plug. I spliced in a new plug, very cramped but doable. With this clear P0A08/264 showed up. The troubleshooting list is daunting. With the car off the 12v battery reads 12.4v at the batter, with the car on it reads 14.15v.AZ. Vehicle: 2008 Prius. Model: N/A. Yesterday was driving my 2008 Prius (75K) down a paved road from a ski-hill (no snow/rain, perfect weather and completely dry road). Not hard driving, 20-30 mph some curves, very smooth road with no potholes, etc. Battery turned all green, its fan initiated and I also rolled back window during this 75 degF ...5 posts · Joined 2010. #1 · Jan 5, 2012. In the last few weeks, I get the dreaded Red Triangle with exclamation point on the dashboard with just the word "Problem" on the display. It only happens when I make a left turn and barely lasts one second (Just long enough to read the word "Problem"). It only happens (so far) on a mountain road where ...my 2004 Prius with 142000 miles has a reading, B0001, C0001, P0001, and V0001. Does any one know what this code means. Triangle light comes and a muffling sound from the back right side HV battery breeder. When I cleared the codes, everything went fine but keeps coming. I recently rebuild the Hybrid battery and a new 12V battery. please Help!Hey guys just I have a question so I have a 2008 Prius and I just replaced the 12volt battery on Monday worked just fine the car was able to drive... Forums. Search Forums; ... came on and vsc no abs also well red triangle and I got these codes on the self diagnostic from the computer do they mean Attached Files: DB62BB17-99A1-4018-8BC4 ...Pop the hood while in Ig On or Ready and see if the inverter coolant pump is running. That would be a typical cause of getting the red triangle after driving for a while, and having 12V battery problems. This would be trouble code P0A93. Otherwise, get the codes read with a scan tool. It cannot be done from the MFD.2008 Prius. Model: N/A. This morning I drove for about 3 minutes before 3 (4) warning lights came on. The red triangle. The check engine light. A red icon with a car and exclamation point on the "info" display. An hour later when starting the car to take it to read codes, another light popped up (in addition to the others) for <1 minute ...When I turned on my car before the replacement- no lights on the dash. Get the battery replaced at the Toyota dealership- and the next day I turn my car on to get the red triangle- the orange exclamation point within a circle (not tire pressure) and the VSC light. Checked the oil- it was low so I filled it up- and also JUST got brand new brakes. Prius red triangle no codes, 4783 posts · Joined 2014. #3 · Sep 11, 2021. P2103 is typically set because of electrical (TA-A circuit) issues. These cannot be overlooked in the troubleshooting stage, especially when dealing with an intermittent problem. Read more at: P2103 Throttle Actuator A Control Motor Circuit High Input., Warning lights. On a Prius, when the check engine light comes on it indicates a malfunction in the powertrain control system. You need to have the car scanned for codes to see where the fault lies. The red triangle lights because the check engine light is on. The VSC is disabled when the check engine light is on and that light comes on., On June 20 it stopped cooling almost entirely and I got the red triangle with the exclamation flashing with the word "problem" and beeping. I took it to the dealer who checked it and said that I was out of freon ($250). They said there were no codes and they didn't know why I had the red triangle. It cooled again, but was still intermittent., I got the red triangle of death after a week of weird battery activity, but I'm getting weird engine codes ... Edit: the prius is a 2005 ... Usally what i know is that codes that start with "P" is typically for engine codes and u dont see anything P codes, i got my inverter pump changed 3 weeks ago at a mechanic and they connected a obd ..., Green Valley, AZ. Vehicle: 2015 Prius. Model: Two. If the check engine light turned on, then definitely at least one DTC was posted. Since your mechanic lacks the proper tools to retrieve the fault code, you need to visit your local Toyota dealer's service dept for help. #3 Patrick Wong, Jan 21, 2014., At 60 miles an hour, the red triangle and check engine light. At 60 miles an hour, the red triangle and check engine light come on. They indicate it is a hybrid cooling pump and the stability control system. … read more. Ted Ritter. High School or GED., Prius Red Triangle No Codes . If you’re the owner of a Toyota Prius, you may have noticed a strange red triangle with an exclamation point appearing on your dash. This is known as the “Prius red triangle of death” and it’s actually nothing to be concerned about. Here’s what you need to know:, My 2008 pruis keeps randomly beeping and showing the red triangle. Just got the oil changed a week ago. Replaced the Temperature Coolant Sensor cause a code P0117 popped up (temperature coolant sensor in-put low). A day later this red triangle happened. It's for less then a second and the word problem shows on screen., My friend has a 2008 Toyota Prius. The red triangle came on. I got it to go away by disconnecting the battery and touching the + & - together without the battery connected. Then started it up ran 2 to 3 miles red triangle came back on along with the VSC being lit up. It did not seem to mess it up as to the running of the car till it was …, My daughter recently bought a 2006 Prius with 170K, Car was running great at purchase time with no issues but unfortunately the honeymoon was short lived. Less than 50 miles, she got the check engine light and red triangle. Car seems to still to drive fine. Had a dealer near Knoxville TN pull the codes and the only code was a P0A9C - Hybrid ..., The code is for an inverter failure. Most likely you need to replace the inverter coolant pump. A garage can do it or you can do it yourself. You can get the part from Toyota, order it from an auto parts store, or you could get one from eBay or Amazon. There are several how-to and diagnostic videos on Youtube, along with detailed written ..., Go to prius r/prius. r/prius ... Red Triangle of Death showing no codes Red triangle of death today while accelerating from a stoplight. My OBD II scanner isn't showing any codes. I can clear codes and the triangle goes away for a few seconds and comes back. The code shows up even when in "on" mode (two power button presses with no brake pedal on)., > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Generation 1 Prius Discussion > Attachments are working again! Check out this thread for more details and to report any other bugs ., Mar 13, 2019 · The Prius has 203,000 miles and is 2008 with original hybrid battery. The Prius has always resided in Los Angeles no other states. I pulled the 12 volt battery for 10 mins and the Prius started up and dash is clear of warning lights no red Triangle or check engine lights. Then after idling for 10 mins and shut down the Red Triangle and the ... , My code came back in less than 30 seconds. "The first step is to clear the P3009 trouble code by unhooking the 12V battery for a moment or using a code reader. Now turn the key on/ but NOT start/ready mode, wait 30 seconds and if the code comes back, the leak is in the battery case. If the code does not return, turn key to start to …, read the codes; read the codes; read the codes; If those lights came on, there were codes. The codes that make those lights come on are not in the computers you can read with a generic scan tool. A Prius-aware scan tool is one that can read the rest. It costs more than a $10 multimeter but less than a kick-nice person one., First it was the master break solenoid, got that replaced. Car drove fine but the light came up. Just had a shop diagnose it and said it was the inverter coolant for the main hybrid battery. Replaced it but the triangle is still there. My OBD2 reader is showing no codes. I remove the the triangle using the dongle but it comes back up immediately., Ive read some similar posts but I havent found one with the same problem. I have a 2007 Toyota prius base model, it has 49,845 miles. Today i got in, pressed the bake, pressed the on button, and the Red Triangle appeared with yellow exclamation point in a circle, and on the lcd monitor it shows that there is a problem anda little icon of a car with an exclamation point on it., The third annual MetLife Triangle Tech X Conference is going by the theme Women and STEM: Harnessing the Great Reevaluation this year. The third annual MetLife Triangle Tech X Conf..., Had the red triangle twice now but it says 'no codes' in both autel scanner and torque pro. ... Try Dr. Prius app... The two apps you mentioned don't read codes very accurately on Prius, especially sub-codes... #4 PriusCamper, Jul 20, 2021. rogerthat likes this. lexidium Active Member. Joined: Nov 19, 2015 225 105 0 Location: manchester Vehicle:, Was driving yesterday and suddenly triangle, check engine, (!) and VSC lights came on. I stopped and restarted my 2005 prius, but red triangle and check engine light still on. Car drives the same, no problem at all. My tank was half full, I pulled to gas station and filled the tank, and the lights went away., Tallahassee. Vehicle: 2007 Prius. Model: II. PPH: (Possibly Pertinent History) Original Hybrid battery failed April 2015. 1st rebuilt (Dorman) battery installed April 15 - Failed July 2015. 2nd rebuilt (Dorman) battery installed July 2015 - Failed October 2015., Red Triangle, Check engin, VSC On. Codes HELP! Pics. Discussion in 'Gen 2 Prius Technical Discussion' started by CollegeKid, Oct 30, 2017. CollegeKid New Member. Joined: ... I suspect your code reader cannot read all the Prius ECUs, specifically the ones to do with the HV battery. You may need to get or borrow a more capable reader, then the ..., So my 05 prius just had the Red Triangle, check engine light, VSC and (!) lights come on. ... touota prius code p0a08 12v charging from convertor/invertor system not ... , My beloved 2006 Prius with about 117,000 miles on it needs to go to the shop (I'm not a DIY mechanic). As I was driving home yesterday from work, all of the sudden the red triangle, VSC, check engine and a little car with an exclamation point on it on the display came on about 2 miles from home., Normally when the car doesn't start, you can reset it by disconnecting the 12v battery for a minute and then try again. It should start at least 1 time. If that doesn't work, then you have a blown fuse. I don't know which fuses to check for on the gen 3. I have disconnected the 12v many times., Jul 20, 2020 · no - but I'm only using the free version of dr. prius. i do have the paid version of torque pro. nither of these show a battery or engine code - even though red triangle and little headlight wobble symbol are displayed. (maybe it's just that headlight leveler thing). , Indices Commodities Currencies Stocks, I was driving home from work on the freeway and all the sudden the check engine light came on on the dash and the car started driving very sluggish. I exited the freeway after about 2 miles and went to the local parts store for a scan. Scan codes via OBD scanner were for P0304 (misfire cylinder 4) and C1242 (open circuit ui IG2 Circuit)., The chain auto parts places such as AutoZone, Advance Auto and O'Reilly will read your codes for free. They will hook a machine to a port under the dash which will give you a 5 character code that tells what prompts the light. ... There are many numerous things that can cause the check engine light/red triangle of death to come on. Which means ..., Hi r/Prius! The following lights popped up today on the highway: Red master warning light Yellow check engine light Yellow brake system light "((!))" Yellow VSC light *. Red car with exclamation mark on multi function display I didn't notice any driving issues., Here are the top 5 fixes for "Check Hybrid System" HV battery codes and failure. The high voltage or traction battery fault codes are usually accompanied by ..., > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and Troubleshooting > Server migration is complete! ... Red Triangle, no codes again.