Prius red triangle no codes

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 ...

Prius red triangle no codes. 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.

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 ...

Just for future ref, any headline like "red triangle, no DTC" generally means you've been scanning for codes using a tool that doesn't see the Prius-specific DTCs. It doesn't mean there really aren't any (if the red triangle is on, there certainly are). ... Just for future ref, any headline like "red triangle, no DTC" generally means you've ...Hi All, Car profile: 2004 Prius with 175k miles On March 11, I was on a short drive on the freeway and heard a rattling sound under the car. After the rattling stopped, I looked in the rear view mirror and saw white smoke, then received the red triangle. I pulled over immediately, waited for 5 mins and started the car.I have a 2007 Prius that in the last week or so has started showing the red triangle on startup, but it goes right off. It doesn't happen all the time, but often enough that it has me wondering. Last time I started it (from being parked overnight), I heard a short buzz that also went right off. No other warning lights and fluid levels look OK.Hello the people of Prius chat, I am new to prius. I purchased a gen2 w/nav with 156k recently. Car was working fine for a couple of month avaraging 35-40mpg but suddenly it has developed a red triangle light show. I have searched the forum for answers but i could not find one that answered this unique issure that i'm having. and here at it....Our 2008 Prius won't start with the red triangle showing, disconnect 12 volt battery and reconnect then it will start and run until shut off. Toyota … read more. Adam Schmidt. Auto Technician. Associate Degree.Red 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 ...2008 Prius. Model: N/A. Hi all, I have a 2008 Toyota Prius. I was coming home yesterday and right as I turned into my apartment the VSC light came on along with the big red triangle. I drove slowly and parked. When I tried to turn on the car today it turned on, windows go up and down, overhead light turns on, and all these lights (see subject ...Because home inspections typically happen after a walkthrough, be on the lookout for these red flags while house hunting. Expert Advice On Improving Your Home Videos Latest View Al...

Those codes are from the brake ECU, and so are the Prius-specific codes C1259 and C1310, so all those codes account for the VSC and ((!)) lights. The C1259 and C1310 both simply tell you that the brake ECU has been notified of trouble codes in the hybrid-vehicle control ECU. The HV control ECU codes are why the red triangle is on.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 ...2004 Prius. Model: N/A. 2007 Prius Gen 2. No readable OBD2 Codes. No Green Ready dash light. No blown fuses found under dash or engine compartment. Many other dash lights are visible though VSC,ABS, Red Triangle of Doom, fuel level indication. Voltage drop in 12 volt battery detected however above conditions still present after …Base. Hey everyone, so a couple of months ago our 2008 (100+k mi) Prius gave my wife the Red Triangle "Problem" while she was out and about with the kids running errands. It happened while she was at my office visiting me, so we switched cars and I let her take mine home while I gave our Prius a rest as I finished out the last half of my work day.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 …Florida. Vehicle: 2007 Prius. Model: ----USA----. Hi guys, I habe the P0A80 code in my prius and I vheck the modules volt and fans and everything is working, as you see in tje picture, it say that the block 1 is low, but, all the voltages are 7.6 and up, do you thing that I have to change the sensor in the image? Need your advises one more time ...After engaging the safety interlock, it would take 3 on/off cycles to clear the red triangle and the fault code would go into "historical" status. Disconnecting the battery accomplishes the same thing and totally clears the fault memory. Glad to hear everything is up and running again. #16 TMR-JWAP, Dec 2, 2019.

2006 Prius. Model: Five. I just acquired our second Prius, a beautiful 2002 (Gen1 in the USA) with 90k miles. On the dash, I get the red triangle of death with the exclamation point inside it. On the computer info screen, I have an icon of a car with an exclamation point in it and it reads "problem". I have connected the OBDII reader to it and ...Vehicle: 2004 Prius. Depending on fault light will go off when fault condition goes away. If it's real fault battery is just at the edge of setting fault so it may improve a bit or be just coincidence. But light will be back. If it's just false code it probably showed fault condition only for small part of second.My 2007 Prius started showing the red triangle after sitting in the garage for three months , with only being started and idled for a few minutes every weekend. It drives fine. ... I'm still waiting to be told the fault codes but they recommend replacement of the hybrid battery for about $3.5 K. I never had an issue with this car though it ...I tried the Dr Prius battery tests, drove up and down some hills to get some electrons pushing around. I ended up with a new red triangle. the center temp sensor was in the high 130's, while the others were at 120..at one point I got a message that the inverter was too hot to force charge. Codes are P3000 and PA080.

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Red triangle, slow acceleration, high rev. C1310, C1241, Other U and C Codes. ... ok, so I got only one battery code from Dr. Prius: P3000 Tried Car scanner and also got P3013: Battery module 3 fault Here are the battery stats: https://ibb.co/sRvgzrx #11 txexplorer, Oct 2, 2023.The day the triangle lit up, with it came the yellow VSC light, the yellow brake warning light and the check engine light. The computer shuts you out of the ability to use the cruise control, and the top 1/2 inch of the information display is changed to show an outline car, in red, with an exclamation mark inside.> 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 …Red triangle immediately after oil change [2008] Had my oil changed today and after leaving the shop, the car sputtered through the light and barely powered into the next parking lot. Got the red triangle, VCS, the yellow circle and exclamation and check engine. I have a cheap ODBII and Carista, I pulled the codes, but didn't realize there wasn ...

> 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. Big Red Triangle and Hybrid Warning Light. Discussion in 'Gen 2 Prius Care, ... The warning lights have thrown OBD trouble codes. Get them read via the ...Good morning, Quartz readers! Good morning, Quartz readers! Congress is returning early for a vote on the US postal service. House speaker Nancy Pelosi is trying to block operation...Red Triangle, ABS, VSC, Check Engine, Will not go ready and does not show codes. Discussion in 'Gen 2 Prius Main Forum' started by deegee, Jul 6, 2021. deegee New Member. Joined: Jul 6, 2021 6 1 0 Location: Georgia Vehicle: 2006 Prius Model: V. My daughter bumped her 2006 Prius into an SUV in front of her. No one was hurt.2005 Prius, Red Triangle warning, car starts and dash info on HV battery showing steady and well charged; car won't shift into D or R. OBD … read more. 2006 Prius. Main Warning Light (Red Triangle of Death) and. 2006 Prius. Main Warning Light (Red Triangle of Death) and Hybrid System Warning Light are illuminated.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.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.Red triangle, no code, reset, then nothing (2002 Prius) Discussion in 'Newbie Forum' started by primuspaul, Jun 13, 2014. primuspaul Member. Joined: Mar 23, 2014 244 11 0 ... 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 …Hi all, I bought a 2007 Prius a few months ago for cheap off my neighbor. It had a reconditioned battery put in about two years ago. Last week it showed the red triangle of death, and I got a P0AA6 code on my reader. Scheduled it at the mechanic for this week, but I had to clear the code in order to put it in drive to get it to the shop.Hybrid battery failure!http://battery4prius.comUPDATE: Two weeks and all clear still.Join this channel to get access to perks:https://www.youtube.com/channel...

Try pulling over and turning the car off for a few minutes to reset it. If the hybrid check light comes on while you're driving, pull over somewhere safe. Turn off your car and let it sit for 5-10 minutes. Then, try starting it back up again to reset it.

Hey everyone. I own a 2007 Gen 2 Prius and lately it started showing the red triangle warning light. But it happen intermittently, randomly but almost in every drive longer than 10 minutes. It just pops up for a second and then gone. I cannot, for the life of me, figure out what's common about those occurrences! Our 2005 Prius (1 of our 2), sat for longer than expected or desired after some tough financial times for our family. ... '05 prius w/ red triangle, car w/! & main battery on MFD, codes P3000,P3030,C1241,C1259,C1310,C1378. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by BubbaToyYoda, Jul 11, 2019.Disable SMART KEY (button that says KEY under steering column), and insert key fob transponder into slot in dash. With foot on brake, push power button and hold the power button in for 30 seconds. Release power button and try to restart ." #11 Planet Awesum, Oct 30, 2017.‘08 Prius Red triangle of death and check engine w/o codes I was driving today no issues. Hit a small bump in the road, going normal speed in the city and my check engine, red triangle, tire pressure light all come on and also the car with exclamation on …Own a 2006 prius. Red triangle and other lights came on OBDII scanner said p0a80 code. Car was running ok, but it was hybrid battery was erratic chatging/discharge. Replaced hybrid battery with Dorman … read more8. Reply. andy_why. • 4 yr. ago. If the red triangle went away then it's probably fine, but your 12v voltage is a little low. It could be a weak 12v battery causing it. If it happened after you ran the phone charger with the car off, that'll likely be why. Also, you shouldn't use an AC adapter for charging your phone, buy a 12v USB adapter ...Jun 26, 2014 · Hello, My 2008 Prius 2 IPA SOL PACK does not start anymore, when I press the ignition button with the foot on the brake, the car car does not come to the "ready" state, and all the lights on the dashboard are ON + the red triangle. When I plug in my generic OBD diag tools (Carista, OBDLink ...), I get NO fault code. Which is nevertheless troubling. 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.

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No other warning lights come on. I can't piece together any correlations, but I believe: 1) Never when traveling normally at high (40+ mph) speed; 2) Usually when braking slowly around a turn (~15, 20mph) 3) Sometimes when accelerating in a turn at an intersection after stopping. Commonalities: 1 second alert, turning, barking (though not always).Installed New Nexcel Battery now Have RED Triangle, no codes on scanner. Help ! Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by monoshock, Sep 19, 2023. Tags: ... 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 ...You should check if your inverter pump is working. Open the inverter coolant reservoir and see if the coolant is moving rapidly when your car is "READY". You can also read the codes to determine what the car is reporting. Coolant is moving rapidly when the car is ready and the code I have is the p3000. #4 2007priuslol, Jul 2, 2021.You should check if your inverter pump is working. Open the inverter coolant reservoir and see if the coolant is moving rapidly when your car is "READY". You can also read the codes to determine what the car is reporting. Coolant is moving rapidly when the car is ready and the code I have is the p3000. #4 2007priuslol, Jul 2, 2021.5 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 ...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.Hybrid car pictures of the Toyota Prius, Ford Escape, Tesla Roadster, and Aptera. Check out this image gallery of Hybrid cars. Advertisement One of the most recognized Hybrids on t...Jul 19, 2019 · Vehicle: 2005 Prius. Model: II. Writing this post more as a log of my own issues and my troubleshooting steps. There are lots of good posts on this forum, but I thought I'd add my own troubleshooting experience. Mileage: ~95000. Issue: Driving home from a business trip. 1.5 hours into a 3 hour trip. In the rain on the highway. ….

I. 2007 Prius with 112k. It's getting the red triangle and check engine with code P3012. My understanding is P3012 points to 'Battery Block 2 Becomes Weak'. Battery block 2 is the 3rd and 4th modules counting from the end where the ECU is. These two modules test out the same as the other 26 modules in this pack, ranging from 7.40 to 7.46.> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, Maintenance and ... Just got the dreaded red triangle of death. In addition, the orange exclamation point symbol (with circles around it) also came on, as well as the VSC, and check engine light symbols. ... Monitor Component Test Vehicle Information Vehicle Status Each category is a ...2015 Prius. Model: Three. Welp. 2008 Gen 2, 130,000 miles. Engine died, all lights on, Red Triangle of Death. Suspect dead traction battery. No aftermarket battery installers here on Guam. If I can buy one in California I may ship it in and install it myself. Should be an adventure.Vehicle: 2008 Prius. Model: III. I was hoping someone would have some insight into the possible issue with my 2008 Prius. I just passed by 5K oil change by a 50 miles or so, so my maintenance light was on, but when I was driving it on the expressway today suddenly the red triangle light and check engine light came on, I immediately pulled over ...To the right and near the back of the engine compartment is another reservoir for inverter coolant. It should also be filled with pink coolant, between the marks (most of the way full). There are lots of things that can trigger the red triangle light, including the drivers' door not being closed all the way when in gear.2001 Prius, Red Triangle, Check Engine Light, PS + Battery+Car red exclamation alert. Discussion in 'Generation 1 Prius Discussion ... A code reader is needed to do that. Most generic ones are useless on a Gen 1 Prius, because they will only show codes from a couple computers (engine and possibly brake) and totally ignore the other computers in ...I have 2008 Prius with 126k miles on it. I was driving at highway and three lights ( red triangle, yellow circle with ! and the red car with the ! on the display) came on. I didn't stop right away. After 2-3 minutes car shut down and never start again. Inside lights and signals were okay and bright. But even I put the key in, car didn't response.So my 05 prius just had the Red Triangle, check engine light, VSC and (!) lights come on. Then they VSC and (!) went away and it was just the Red Triangle and Check engine light, then they all went away, then they all came back. ... Wife's 2005 Toyota Prius Died. Code was P0A80 (Replace HV Batter Pack). Pull HV battery most measuring 7.5V ...Apr 1, 2020 · 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 turned off. Not everyone can afford to install solar panels or get a new Prius this Earth Day, but there is one place you can go green without spending an arm and a leg or radically changing y... Prius red triangle no codes, 2006 Prius. Model: II. I have recently changed the oil, trans-axle fluid, spark plugs, air filter, and PCV valve on my Prius, as well as install an aftermarket radio. The check engine light came on about a week ago and the red triangle with the diag code of P3190. I was able to clear the code with my phone and the car was running perfect again., It disappoints everybody to find out that only gives codes for the infotainment electronic stuff. For the car diagnostics, you do need a scan tool to plug in at the DLC3 connector. The ones that will give you access to the most information would be J2534 dongles connected to a laptop running Toyota's "Techstream" app., 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., This indicates a problem with the regenerative braking, and is triggered by the above code. A symptom rather than a cause. c1310. I don't see that as a valid code for a GenII Prius. c2318. "Low voltage error" comes with the failed 12V battery. b1421. This can be ignored. (Light sensor on dash.), 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 ..., 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 "ready mode ..., Tl:Dr: prius sat for 2 weeks, did not start and had red triangle, also water pool up in the aux battery compartment, drained water and jump started battery but car ran rough and did not gain speed. Mechanic says it has hybrid battery codes and needs new battery., 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., 08PriusXSJ said: ↑. In summary, I experienced: 1. A red triangle warning on then disappeared by itself. 2. Engine code P0A40 and P0A41 were found by the scanner. 3. Car was derivable without any difference (my feeling) My Questions are (need the help):, My 2005 prius red triangle light, battery fan, VSC, and ! symbol just came on. This is what happened in 2019 and a rebuilt drive battery by Greenbean fixed the problem until today. It drives sluggish. Greenbean say it's under warranty but the need evidence of P3000 or P0A80 codes to come fix it. My OBD2 code reader just have P116,1121,1123,1150 ..., 7.1 could easily be a failed module, or just a depleted module. If you have to disconnect the battery to get the car to start, you likely have a P0AA6 HV isolation fault. If you're dealing with a P3190 then you may just be depleting the HV battery, as opposed to having battery module problems (other than the P0AA6) #3 TMR-JWAP, May 2, 2022., 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 ..., 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 turned off., 2006 Prius. Model: Five. I just acquired our second Prius, a beautiful 2002 (Gen1 in the USA) with 90k miles. On the dash, I get the red triangle of death with the exclamation point inside it. On the computer info screen, I have an icon of a car with an exclamation point in it and it reads "problem". I have connected the OBDII reader to it and ..., 2007 Prius base, package #3. 146,000 miles (I purchased at 126,000). The vehicle has spent its entire life in cool Minnesota. I tried to start the..., no the red triangle of death, VCS, check engine light and yellow exclamation point lights are all on I tested my 12V with a multimeter and it checked good. 12.5V ... 2005 prius with 80K miles - has codes c1259, c1310 and c1378 - the car will not start ..., no the red triangle of death, VCS, check engine light and yellow exclamation point lights are all on I tested my 12V with a multimeter and it checked good. 12.5V ... 2005 prius with 80K miles - has codes c1259, c1310 and c1378 - the car will not start ..., The "death" triangle might indicate that you need a new 12V battery. A new battery fixed my problem on my old 2008. YouTube has instructions how to do it. Basically all you need is a 10mm socket and a bit of patience. #5 plug-it-in, Jun 20, 2016., > 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 ., 2007 Prius. Model: Two. I had been driving around with a red warning light for a couple weeks and was on my way to get it checked out by toyota when the brake light, abs light, and exclamation light came on. Once I got it there they took a look at it and pulled a P0A84 code and C1256 and C1391. The P0A84 code was said to be because of a non ..., Jan 24, 2020 ... 5:28. Go to channel · Prius Red Triangle Fix - Code P0A84. DanielJaegerFilms•91K views · 1:41. Go to channel · Prius P0AA6 code explanation wi..., Red Triangle in 2001, Got the Codes. Discussion in 'Generation 1 Prius Discussion' started by ... May 1, 2012 7 0 0 Location: Canada Vehicle: 2001 Prius Model: N/A. Hi all, The red triangle first came on when my parents were driving my 2001 a few months ago. They described lack of power, etc. ... PriusChat has been the go-to spot for Prius ..., 08PriusXSJ said: ↑. In summary, I experienced: 1. A red triangle warning on then disappeared by itself. 2. Engine code P0A40 and P0A41 were found by the scanner. 3. Car was derivable without any difference (my feeling) My Questions are (need the help):, 2004 Prius. Model: N/A. 2007 Prius Gen 2. No readable OBD2 Codes. No Green Ready dash light. No blown fuses found under dash or engine compartment. Many other dash lights are visible though VSC,ABS, Red Triangle of Doom, fuel level indication. Voltage drop in 12 volt battery detected however above conditions still present after 12volt battery ..., 11 votes, 24 comments. 41K subscribers in the prius community. Everything Toyota Prius! ... Red Triangle + yellow engine, brake, then 3 letters I forgot + MFD with upper left red Car With Exclamation Mark. ... Workshop tried to clear the codes to no avail, and since I replaced the 12v battery, the car stayed overnight without it (which did ..., 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. ... 2005 prius with the red triangle on the dash and the car with a line thru it on the touch screen., 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)., 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., 2009 Prius with 133K miles.12 V battery was changed 3 months back and also Inverter Pump was replaced recently. While on the road driving in the normal traffic, saw the red death triangle coming on. ... and checked the codes using a generic OBD reader and found PA080 (Replace Battery) and P3012 (cell 2). I erased the code which resulted in Red ..., 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 ..., 2008 Prius with 3/4 warning lights and no codes . ... The red triangle. The check engine light. A red icon with a car and "!" 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 before disappearing ..., Generally speaking, when the red triangle appears (or other warning lights) there will be OBD2 codes (DTCs) stored in the ECUs. Try taking the vehicle to all of the surrounding auto parts chain stores (autozone, oriellys, pepboys, aap) for a 'free code scan', each location (even within the same chain) may offer a different scanner, and if you're lucky, one may actually have a toyota hybrid ..., My 2007 Prius started showing the red triangle after sitting in the garage for three months , with only being started and idled for a few minutes every weekend. It drives fine. The dealership completed a 10K servicing and found nothing wrong during its checkpoint inspection.