Prius (2004-09) :: Red Triangle Appears When Braking On Hill
Jul 8, 2014
I am just trying to find out if this means I need to have something checked like coolant hardware/fluid...
It is over 100 F these past several days and at 35 minutes just hopping off the freeway, and then again today, coming down a big hill at another part of the freeway, I noted that as I quickly had to brake the system made the computer noise (same as when I switch from the power view to the trip view), red triangle comes on, no other indicators. The first time it happened I was back on the throttle almost right away and red triangle went back off.
Everything fine. Same today but it was on until I was back on the throttle at the bottom of the hill...
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My '04 with 193,000 miles has in the last week displayed the above trio of warnings (the word "PROBLEM" appears in the MFD and disappears instantly) plus the infamous Red Triangle of Death appears and there is an audible chime, 7 times; 4 when changing lanes and 3 at random times. The trio of warnings come on for literally 1 to 1.5 seconds and then go away, and there is nothing apparently wrong with the car, the handling, the performance, etc...it continues driving as sweetly as ever. Nothing. No engine warning light comes on (if there is such a thing), or anything else. I have new tires, the tires are all properly inflated, so it isn't the tires triggering the traction control warning.
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I got a rebuilt 2008 prius 2 days ago , today while I am driving , the big red Triangle appears , and on the MDF screen i think its a red temp mark , before the red Triangle appears , the ICE become like crazy loud sound from it, so i bring my mini VCI and i got the following info (i will post it as an image ) .
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When I tried to start my 2006 Prius ,it wouldn't start and this message appears with the red triangle "there is a problem with the transmission "p" lock mechanism. Park your car on a flat surface and fully apply the parking brake.
It is at a parking lot now because I couldn't start it!
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My partner's Prius is bring up the red warning triangle. She had a system diagnostic carried out, which brought up these two faults:
C1241 Low Battery Positive Voltage
C1300 ABU ECU Malfunction
The faults were reset, but it was only a short matter of time, before the red triangle appeared. My partner tells me this tends to happen more frequently when she is steering left and in colder weather.
She was advised the ABS ECU will need to replaced (it does says "new actuator" on the paperwork)
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I am going to remove LED headlights & do a full HID retro.
Only problem is that the car has a system check & throws a flashing yellow triangle. How to trick the system?
There are 6 wires on the LED headlight harness.
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If your Gen2 Prius Big Red Triangle is flashing intermittently (especially while cornering / braking) this is a reminder to pull into the first gas station you see, check the engine oil and add enough oil to bring it up close to the full line.
Most likely you have only a quart or less of oil in your engine and your engine has excessive oil consumption issues.
The damage is done and it will continue to burn oil so check it often and carry extra oil in your trunk.
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Braking down a hill and a sharp turn (in either direction) around 10mph results in a slight knock (1, not multiple). Is it normal? I have some suspension goodies to put on but i don't want to do that before getting any repairs done if necessary...
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My wife has an 08 with a little over 50k miles. When under load (climbing a hill) with the AC on, the engine "rattles". This sounds like classic detonation to me. It stops when I turn off the AC or she lets off the gas. I have tried running several tanks of super unleaded with no improvement. I have searched here and checked a few things others have mentioned as well, such as a loose hood prop rod with no success.
The car just started doing this around 3-4k miles ago. Last week I changed the spark plugs, even though they are way under the mileage where I should change them. The plugs looked normal, a light tan color, with no unusual deposits or anything out of the ordinary. . Last night I checked and the engine coolant was a little low, so I topped it off. This had no effect as this afternoon on the way home I heard the same clatter when climbing a long hill. All this started back in march when the outside temps were still in the mid 80's... I wonder if it is possible that the pistons already have carbon at this low of mileage ?
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I recently drove my 2004 Prius up some steep hills in the Smoky mountains. The next morning while driving to work, my dashboard lit up like a Christmas tree, with multiple idiot lights suddenly on simultaneously (none of them informative).
I turned around and drove to the nearest Toyota service center. They informed me that the timing belt was cracked, the HV computer was bad, and the PCV valve as dirty and needed replacing. I think the hills were too much for the car. I will never take the car into the mountains again.
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I go over a mountain pass, to and from work. It is about a two mile up and down incline/decline. On several occasions while going up the pass,the gas motor has rapidly accelerated at a high rpm. I back off the gas pedal and check the 'battery indicator bars' and there are none. I then drive very slowly to the top of the pass and the batteries quickly recharge on the decline to a color of all light green bars, indicating a full charge. Same experience coming home. Once I do normal town driving, the bars settle around 'four or five blue bars.' Local dealer says there is on problem. I am driving at 55 mph when this happens.
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A few days ago I posted a thread about losing power on a steep hill climb with a cold engine. I replaced the hybrid battery and all seemed well. A few days later, the problem occurred again--bummer. (The car has 120K miles and has spent most of its life in a hot and mountainous environment, and I knew the hybrid battery was failing, so that's not a problem.)
The car starts the climb OK, gains a few hundred feet in elevation, still has some charge left in the hybrid battery, then loses power, surges a couple of times, then comes to stop. The engine continues to run at idle and I get no warning or check engine lights. The "ready" light stays on. This time, the second time it happened, I turned off the car, turned it back on again immediately, and all was well. The remainder of the 1000' climb went fine. As did several other similar climbs on the same drive. Since then I've climbed this hill with a cold engine without a problem, so it's intermittent.
I hesitate to pay Toyota for a code scan since the check engine light did not come on. Should I do this anyway? My local auto parts store will scan for free, but I know that their scanner will not read Toyota-specific codes, just industry standards.
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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.
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My 2007 Prius has 120,000 miles. I live in a mountainous area. I need to climb 3 miles at 6% grade to get out of my neighborhood. Lately I've been noticing the traction battery loses charge fairly quickly and I've been thinking about replacing the battery. Much of my driving is in steep hills and I run a full charge cycle many times a day, so I guess I should expect some loss of life.
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After driving for 2 or 3 miles my car turns on this red triangle and says "problem" on the GPS. All the threads i have found this is accompanied by a check engine light but mine does not. On the gps there is also a symbol that i looked up in the manual, it says to take the car to a dealer. is there any way to know exactly what this triangle means? There is not CEL tripped, tried 4 code reader and nothing.
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My 2007 proud of 180k miles which hasn't had any issues up until now just randomly gave me this error, where the red triangle of death, vsc, and tire pressure ((!)) Sign came on. It drives fine and there is no check engine light.
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My 2006 has about 67,000 miles on it. The other day it began to behave in a very strange way. I had the triangle show up and it just would not go away. I checked all the fluids and they were good. I did notice that there was a new icon I had never seen before. It looked like it was an curved device with a thermometer attached. When I looked it up the suggestion was to go to Toyota right away. So I decided to drive over. As I drove I could hear the fan from the back seat coming on. It was going very fast, so I guessed that the traction battery was overheating. The car would barely drive, no power. Even when I floored it there was very little acceleration.
I got it to the dealer and they gave me a loaner because it the car was recalled due to the accelerator pedal. Later in the day I got a call saying that a couple of ECUs needed to be replaced. The next day I got a call saying the traction battery was bad and would be replaced under the long term warranty. They said I also needed an aux battery. I knew my battery was not charging up to better than 10 1/2 volts dc. They said it would cost $300 installed, so I said I would get back to them.
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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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Recently while pulling into the gas station the brake, Triangle !, ABS and VSC lights came on. The dealer reset the error and said my ECU needs replacement at a cost of $1843. The Prius is a 2005 with 147000 miles. No problems since the reset so I am hopefull. I don't recall reading about a lot of others having to have expensive ECU replacements so I wonder how many have had similar problems and replaced their ECU.
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I went to the dealership today with my '05 displaying a master light ( big red triangle) and "problem " posted on the screen with the green "hybrid system problem" box displaying.
The Prius guy had the car plugged into the computer for over 3 hours. It spat out a page and a half of codes, and then after a time distilled the codes to 4 things: a bad hybrid fan motor, the relay, a blower motor controller, and a bad aux battery. The problem is I replaced the aux battery a year ago. So it makes me doubt the entire diagnosis.
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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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