Prius (2004-09) :: Warning Lights - AC Stops Blowing Cold Air
Aug 7, 2012
I've seen several posts regarding the warning lights, mine is a bit different. My Warning Light, Maint Reqd, ((!)), and engine light are all on. I've driven it a few times since and notice that after driving for 10 minutes or so, the VSC light also comes on. In one instance the brake light also came on. At that point my AC seems to also stop blowing COLD air. The motor blower motor still runs, but the air is no longer cold. Battery checks out. Coolant levels are good. Code indicated "something with the inverter cooling" according to local garage. Suggested I take it to the dealer. Scheduled for a trip to dealer tomorrow but wondering if there's anything I can/should do in the meantime.
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I have a 2005 Prius that financed from a small dealer last year. Currently has over 140k miles on it. When I bought it it had the Red Triangle and it worked fine until recently (about 2 months ago). Recently I've been having some problems. When I go at higher speeds I get the following sings come on:
1. Red Triangle
3. Orange check engine light
2. Orange (Symbol)CHECK - Malfunction Indicator Lamp
3. Orange (!) - Brake Warning Light
4. Orange VSC - Vehicle Stability Control Warning Light
When these lights are on, my AC stops blowing cold air. Sometimes when all these lights are on, the car will slow down and will not let me go past 37 MPH I have to then pull over turn the car off and then on, then the lights turn off and I can drive normal, on short trips that is.
Recently on a longer trip over 50 miles or so all the lights I mentioned came on plus the red break light on the left turned on with a continuous beep. We pulled off the HWY and turned the car off then on and the lights disappeared except for the big red Triangle that one is always on. We continued driving it but it kept doing it so we had to let it rest for over 30 minutes. We had to take it really slow and we finally got to our destination.
Codes P08A3 and P0A37 Prius 2005....
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I had just picked my kid up from school, as I turn out of the parking lot my A/C stops blowing cool air, I check the A/C screen and it still says it's set on High with temp at 68. However, it is blowing very low with warm air. Seconds later the dash lights up with numerous warning lights. I'm on the highway and I'm able to gather speed, but each time I do I hear the engine revving like crazy. We only live a few miles from the school so I am able to make it home. Once home, I turn off the car and turn it back on. The only warning lights displayed now are the red triangle and the yellow check engine light. I turn the car off, pop the hood, I check the belt and it was fine. I checked the oil and it seemed fine. I check the coolant overflow and it was empty.
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2004 Solora ... 185K Miles and after driving about 45-60 minutes the AC stops blowing cold air. The blower inside the car runs, the clutch is still engaged on the compressor yet only warm air is blowing through the vents. If the car sits overnight the AC will work again. It does not always stop after 60 minutes of driving. Sometimes I can go days driving 60 minutes at a time and the AC works the entire time. Other times it will quit after 45 minutes. When it works I have no complaints.
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It has been cold recently (out of the past week, highs in 20's or lower). This hasn't been as much of an issue before, but in the past week I have had the red triangle of death, brake warning light, check engine light, and VSC light all come on at the same time, three separate times. Also, the display screen shows a red outline of a car with "!" through it. Each time this has happened, the lights didn't come on as soon as the car was "Ready" but only after the gas engine was running for a minute or two.
The first time the lights came on, I was driving back from class, but after I got back to my house I did some internet research and saw it may be a low oil indicator. Checked the oil, it was almost at the bottom mark on the dipstick, and it had been over 10,000 miles since the last one (oops! we don't normally do that). After reading some stories online, I took it in to get an oil change, and the lights went off for a couple days. Second time the lights came on, I checked the oil level, it was definitely over-filled, so I took it back to Walmart and had them redo the oil so that it was at the right level. I checked the oil level before leaving the parking lot that time and it was at the top mark on the dipstick. Again, all the lights were off for a couple days.
Today, I drove my car for about an hour in the morning (temperature was around upper teens, wind chill below 10) and had no problems. Then, this evening I turn the car on and start driving out of the parking lot when the car beeps at me and flashes all of the warning lights again. I drove back to my house and it is now sitting in the driveway. I am not planning on driving it until I can have a car mechanic friend take a look at it on Tuesday, but he doesn't know anything about the hybrid system/battery.
My wife and I have also noticed that since the weather has been colder, the hybrid battery (shown on the "Energy" screen when driving) seems to be charging and discharging much faster than normal. I haven't seen it at only 1 bar or full of green bars more than a couple times in the 2.5ish years we have owned the car, but in the past two weeks it has happened 5-10 times (estimated). I am not sure if this is due to the weather, or if it could indicate a problem with the (hybrid?) battery. For obvious reasons, this makes us nervous :/
As a side note, I changed the transmission fluid sometime in December, so I was wondering if possibly I didn't put enough fluid back in. I have checked the diagnostic screen and found some codes, but most of them seem to relate to the audio, which doesn't concern me as much as the code that seems to indicate the transmission, which is why I mention the change I did a while back. I just don't know why it wouldn't have shown up until now. I'll attach some pictures I took tonight of the codes and lights.
Also, the battery is a couple years old, but after sitting for a couple hours the battery was reading 12.1 V according to the diagnostic screen, so I don't think that is the issue. We haven't had any trouble getting the car to start, and once it is running it still seems to drive normally with the warning lights on. What these codes mean, and a possible cause for the warning lights?
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2005 Isuzu Ascender 6cyl--auto-- all power--2 wheel dr-- Air cond blows very little air that is only slightly cooler than the outside temp. This only happens during hot weather( 90 Fahrenheit or higher ) after highway driving for extended periods of time, usually after a few hours. It works as it should during any other conditions. After letting everything cool down, it works properly. The dealer says they cannot get it to duplicate this action and therefor says there is nothing wrong with it. I first noticed this at about 50,000 miles because that was my first trip in it. It now has 70,000 miles.
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It's my 2005, 2.7l. auto trans, FWD.
AC stops blowing cold when the engine temp get hot. As long as the car is moving, it blows nice and cold. Also, when sitting the engine temp rises quickly and will over heat if you don't get moving.
Cooler fan on the inside of the radiator never kicks over to high mode as the temp goes up. I checked the fuses and the relay and both are good.
That leaves me with a bad fan? Correct? Also, what is the part number of the fan?
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I have a 2003 Nissan Xterra 4 clyd. My AC will stop blowing cold air after driving for about 15-20 minutes. The light on the controls is still on and seems to be running. If I turn off the AC switch and let it sit for about 5-10 minutes and turn it back on (can hear the compressor kick on) it will blow cold air again for another 15-20 minutes or sometimes less. If I turn the switch too early the compressor won't turn on. I've checked the levels on the freon and had the thermal amplifier replaced. Also the fan clutch was replaced, which I was told by the mechanic that would fix the AC problem.
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I'm having a problem with my 2003 Elantra. Occasionally it hesitates (acts like it is going to run out of gas). When it does this the a/c stops blowing cold. Lasts for 3-4 minutes. Most recent time it had 1/2 tank of gas. I also have a problem putting gas in. I have to fill it very slowly or the gas pump will keep clicking off. I don't know if they are related or not. What fuel problem will affect the a/c?
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AC needed regassing on my phaeton, lasted over a year before another regas, then 3 months and its blowing warm again
my symptoms:
1)AC stops blowing cold a few months after AC recharge
2)When it was blowing cold most cold was through only one vent (the one to the left of the steering wheel), whilst it was getting weaker (vlowing warmer) the one vent was blowing cold rest were all blowing warm
3)Slight condensation settling in center of windscreen, especially after rain
4)Something rattly rolls across the inside dash on occasion when turning sharply!
the codes:
01274 - Air Flow Flap Positioning Motor (V71)
defective or incorrect basic settings
00445 - Loss of Refrigerant
I imagine the compressor has a leak. Euro Car Parts will fit and gave the part number as 3D0 820 803T. I've got it booked into the local dealership but am worried about a ridiculous bill.
There's a couple of mechanics I could use locally I suppose but its a very rare care with a very complicated AC system I hear. Especially on the part numbers and where to get a cheap compressor (if indeed that is the problem) I've got the shareware version of VCDS so cant do complicated stuff I've read about basic settings for HVAC and I've run that didn't work with the V71 motor code.
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I had my A/C compressor unplugged over the winter, and now that I've plugged it back in, the A/C is not blowing cold. Is there some kind of programming reset that needs to be done?
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I have an 06 Prius. I was driving my Prius today and I've noticed that my car has NO HOT AIR...
And this is Winter!! I was driving for about 20 mins and still...No Hot air...vents are blowing cold (cool) air.
I recently changed my condenser/radiator but I did NOT fill my condensor with the A/C gas yet. (could that be the problem?) But isn't the gas inside condenser is for A/C and not for the Hot air??
Any other stuff that I need to check to solve this problem?? (harness, fuse etc.?) It's cold outside and my car has NO HEAT!
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I have a 2001 Passat GLX. On occasion (usually when it is hot) the cluster will reset as if the key was cycled while you are driving. All the cluster warning lights come on, the needles drop to zero, and the trip odometer resets.
When the is occurring it also seems that the A/C stops working and the the car will tend to lock itself and set the alarm. Well except the driver's rear door doesn't actually lock.
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My a/c was blowing but the air wasn't cold. No freon, so the dealer loaded up with freon containing a tracer. After a week, the tracer is coming out of the evaporator drain only, which implicates the evaporator as the source of the leak.
I just hit 150K miles and was extolling my repair free existence, when I had to do the front struts, brakes, and new tires (again); followed by this. Can't find a reference to evaporator leaks anywhere (a lot of mold maybe, but nothing requiring replacement. Did my luck just run out, or is this more common than I think?
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My wife and I are on a 2400 mile cross country road trip road trip and we just got a check engine light about 12 hours away from home. The check engine light, VSC, and tons of other lights appeared. Shortly after our cruise control disengaged and then A/C stopped blowing cold air. We were cruising along in 100F degree weather at about 75-80mph climbing a 10-mile incline with the AC on full blast.
We got to a Toyota dealership but they are closed until Monday so we'd have to wait 2 days for them to check it out. We went to pep boys and they found the code to be "Drive Motor B" which they said should be fixed by Toyota dealership (but he said he didn't really know what the issue is).
I did a quick search and found this might be the inverter coolant pump. Like another poster, I found the car seems to work okay when the AC is off.
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My problems in my ac begin last year around Summer. My ac was blowing hot and not cold and once it even blew some kind of smoke out of the vents. It only did that once and hasn't since. I went to good year and put some freon in the car. And it started to blow cold again and I was good for a while. Well I didn't need the cold air for the last few months till the heat started up again.
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Air conditioner was acting weird. (It doesn't blow cold air when the car stops at the lights or in the parking lots. But it works great while driving). Then I went to dealer. And they scan my computer. And they said we need to change Aux Fan control unit and also one of the fan .I ordered OEM Aux Fan Control Unit . And I installed it. I connected Vagcom and cleared the Fault code but It still acts same. I checked the fans. They both works fine to me. They run 10 seconds and stops. So I didn't get this part. How the heck this AC works fine while I am driving but it doesn't work when I stop ?
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When I turned my Prius on today, the following warning lights remained on:
red "BRAKE"
yellow "ABS"
yellow "VSC"
yellow exclamation mark inside a circle inside parentheses.
It drives fine. After driving it a bit I tried turning the car off and back on a few times. The lights still remain on.
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Mine did. I was driving on the highway and pretty much every warning light went off. It was like the space shuttle crashing back to Earth. Freaked me out. Cruise control stopped working also. But I was able to get home safely.
So first, I tried AAA just to see if the guy would know something, but it was way over his head. He did notice my aux battery was failing, but not much else. Then I found a service online that comes to your place to do the work, and they sent a guy out on a Saturday and he read the codes, and did a full visual inspection, and yes, something was up with the cooling system. He suggested I have the dealer look at it because flushing the system is VERY important apparently. Should be done every 50,000 miles.
I was so worried it was the hybrid battery; we all know what that means! So I had the car towed to the dealer (don't drive if your Master/Hybrid light comes on!) and they said, indeed, the pump was gone. And, of course, they found a number of other things included the dying aux battery. It took them 4 days to get the damn part in stock. At least they covered the car rental for me.
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The other night, went to start the prius and nothing happened except all the warning lights came on! So took the foot off the brake pedal and sat there for a minute trying to figure out. What the heck happened?? Tried a couple more times and then suddenly it was fine and it started! Now I have to mention that the outside temp was around 16*,,, not sure if that could have caused this strange reaction?
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I bought a toyota prius 2008 few weeks back. ave done only 2500 km. Today I received few warning lights on the dash of my car.
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