Prius (2010-12) :: 2011 - Rear Seat Vent Should Blow Air Out Or Suck Air Into It?
Apr 10, 2016
I sat in the back of my recently purchased 2011 Prius Three, not III, for the first time yesterday. I learned from this forum that the vent in the rear seat is to keep the hybrid battery cooled. However, while sitting the back during a ride, I noticed it was blowing air out instead of sucking air. I would think the vent should be sucking air from the cabin to keep it cool, but that does not seem to be the case here. After a 30 minute drive, I even felt the air coming out of it was warm and the A/C began to feel that it was not enough for my area in the back of the car.
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How the rear seat vent works? When you started your car and car was moving, did you notice that vent is always blowing? OK, I just notice that my rear seat vent just keeps blowing when my car is moving. Especially, it is loud as I hear when I turn off my radio.
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A few weeks ago I started to notice that the battery vent fan was turning on way more than usual. I've had the car now for five years (34K miles) and I've only heard the fan go on a handful of times, even in the hot Las Vegas summers. Once I really started to pay attention to it I noticed the noise only started once I hit about 30-35 mph and got louder as I went faster. As I slowed down, the noise would get quieter and eventually stop as the car came to a stop.
This week I caved and brought the car in to the dealer to get checked out and they did an inspection of the vent, fan and did a complete diagnostic on the hybrid system and batteries. I was worried about damage to the traction battery if the vent fan was malfunctioning or clogged. I'm out of warranty with no extended coverage so I was pretty shocked that the dealer didn't charge me a dime to do the tests. All the tests came back clean and they said all the systems tested above average and that the fan was operating normally so I shouldn't worry about it.
But the noise still persists and it's starting to drive me a little batty. It has never made this much noise before. Is there something else that could be going on that the dealer missed? Maybe the noise I'm hearing is something else and it only sounds like it's coming from that area?
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I was wondering if there is a vent setting to just blow air through the cabin or is it required to set a temperature to have the fan blow air?
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My defrost & front vents work fine. My back vents that are in the back of the console switch from hot to cold like it suppose to, but they do not blow out enough to feel it in the back seat or third row seat.
Also when I use the heat the front flat part of the console by the drink holders especially gets red hot to the point it can melt plastic ink pen or anything else you lay there. which concerns me since I have a 9 yr old.
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I just got my clazzio seat cover yesterday, spent the whole day installing it. I'm up to the last seat (rear passenger side) where i need to remove the seat belt.
I'm having problem removing the seat belt. Tried with several different tools, including variable speed tool, and even tried turning it to the right in case it has different direction to unbolt, but it just wouldn't turn at all.
I called the dealership, but no luck. So i'm now stucked with all but 1 seat being covered. I went to some shops today, most wouldn't touch it because it's liability issue.
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Fan is pretty clean. Before re-assembly it will be blasted with ~100 psi from an air compressor. Driving around like this is fine for a while to check diagnostics. How noisy is normal? This is the first time I noticed the noise.
We've owned this silver 2011 Gen 3 from new and it now has 37K miles after about 3.5 years. Today it's ~70F in Atlanta, so not hot compared to how it will be soon. We had the s/w recall done about six months ago and I've possibly not driven the car since (have a few cars).. my wife drives it most days and did not notice probably due to music but I felt it was very loud like there was hole in the side of the car (first thought was some vent to the outside became stuck open but the vent near the auxiliary battery is fine).
Is there a way to read the fan speed via Android Torque and Bluetooth OBD? Should I disassemble the entire length of the venting? Might there be something inside there causing a blockage?
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is there a fan in there...I was driving home no music and in the quietness of my Pri...I hear this sound....
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Took the car to the dealer, said "just turn off the beeps, all of them." The rep. said come back in an hour. Most of the beeps are off now, but I have an odd pair of problems.
1.) The rear hatch no longer beeps when open, but it also has no longer has the SKS function.
2.) The front seat belts no longer beep, but the front dome light no longer has an on-when-door-is-open function.
3) I'm waiting to see what bizarre side effects come from the single reverse beep.
The rep. says these are side effects from killing the beeps, that the nuisance beeps are tied to these two functions and that the only way to restore them is to bring back the beeps. He claims that the front beeps & dome light are triggered by a sensor inside the door that is part of the door latch, that when this sensor is disabled all its functions stop. I think he said it's the same problem with the rear hatch and its SKS.
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I pinpointed a consistent vibration in the rear L & R pillars! Using a rubber mallet on the tires you can hear the recoil springs vibration s and for me, I hear the back center seat retractor recoil spring vibrating! Going address this with the dealership for updated fixes, or I have to fix this myself. I have taken the rear seat apart and welded reinforcement bracket to stabilize the retractor, but the coil spring vibrates.even w the JBL system turn up I can hear the retractor coil spring vibrating distorting the music!
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Walked into my garage where my 2011 Prius (have owned for 11 months, now at ~78K miles) had been sitting for about 4-5 hours after being used for a 4 mile trip. I heard a quite battery hum from the rear for about 1-2 minutes. I've heard this before... (it is not unlike the hum you hear in the front when opening the driver's door after the car has been sitting a bit.... and I've noticed that the duration of this front hum seems to be correlated with the time since last drive?). No clue what is was...
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Just bought a 97 buick ltd and no matter what setting you put it on no air of any kind will blow from the vent.
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1998 Jeep Grand Cherokee (Laredo, 6 cyl). The AC, when set on the vent outlets that blow at chest level, will shift to defrost when accelerating or going up hill. It returns to the proper setting when you leave off the gas feed.One can hear the blend doors changing. I am mystified, because I thought that vacuum operated blend doors went out decades ago.
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So last couple days over the 4th, the heat was over 95.
AC Blowing out of the vent is cold but the rear seats passenger feels warm.
Even with the blower on the higher and temp on the lowest 65 (or lowest setting).
I put my hand towards the rear seat and I feel warm air. Near the vents are cool but its like the AC can't keep up with the heat ?
2010 @ 51k ... 450h ...
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My '11 Prius has developed a problem where the rear passenger door will not open from the inside. It will open from the outside. All other doors function as they should.
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I have a 2011 camry se and i need to know how to take out the rear seats. I'm trying to put seat covers and i want to take out the bottom part so i can strap it tight. When i lift it up i can see two hooks.One hook i got out a while back when i just bought it but i cant do it anymore.i don't want to pull on it too much and risk ripping the seats.
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When first starting a 2012 Sante Fe GLS with standard AC each morning, the vents blow warm for up to 3-5 minutes and therafter are fine. Additional starts for the remainder of the day seem fine. We live in a hot climate, but our 2011 Sonata, which is parked in the same garage, does not have this problem. No unusual soundsor lack of air circulation, and after 5 minutes it spontaneously starts to blow cool air. Problem began 2 months after purchase.
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I have a leak underneath the rear right passenger door. I see some type of pan underneath there but don't know what it is. How to identify what this could be? This is 2011 Hatchback.
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2012 Sonata gls, 84,000 km. Trunk will not open. I am hoping to gain access by removing rear seat and back rest. I believe then I should be able to pull trunk release.
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In my 2010, when I use the A/C, the air comes out cool and dry. When I turn the A/C off, and just run the vent, I notice a few things.
1) The air warms up (duh!)
2) The air is more humid (duh!)
3) The air has a mustier, stale smell to it.
When I just run the vent (and don't run A/C prior) I don't notice the odor, but if I then run the A/C for a bit and then run the vent, the musty/stale smell returns.
I've noticed it and tend to ignore it. My wife noticed it and pointed it out to me, and it prevents me from cycling the A/C off as the odor fills the cabin.
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I did read the most recent thread on this, and while those lessons would be good if I was out of warranty, I'm about to go in for the 5k service after 2 months on the road.
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