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First minor fault


glencrannog
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Not a major problem, but on starting up this morning on 23 plate Yaris Cross, the fan motor on the heating controls came on quite full. Turned it down manually, but even after pressing the off button it remains on low, albeit quite low, but definitely hearable. Everything on the controls functioning OK. Any ideas?

As an afterthought, should the air intake light(s) remain on after the off button has been pressed?

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4 minutes ago, glencrannog said:

As an afterthought, should the air intake light(s) remain on after the

Funnily enough, I spotted this on mine earlier.  At least as regards ‘outside’ intake.

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Try turning off your ac

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I got mine back from servicing and the AC showed Lo and blasting out cold air. Yes, difficulty to stop straight away.

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Have you checked owners manual, it sounds to me more like a characteristic for the particular car rather than as a fault. 

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22 minutes ago, TonyHSD said:

Have you checked owners manual, it sounds to me more like a characteristic for the particular car rather than as a fault. 

Yes, checked the manual, but no help really. It could be a specific characteristic of the model, but I don't think so as it was nice and quiet yesterday. Strange!

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35 minutes ago, Roy124 said:

I got mine back from servicing and the AC showed Lo and blasting out cold air. Yes, difficulty to stop straight away.

Never used the AC with the weather we have had. It switches on and off, no problem. You can turn the speed down to negligible, but it won't turn off by pressing the off button. 

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1 hour ago, Bernard Foy said:

Try turning off your ac

Has only tried the AC on and practically straight off. I've never been a great fan of it. I prefer the open window approach in Summer, and just delisted/heater use in Winter.

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Did you by any chance pressed on the front screen defrost button, usually automatic climate controls set the fan speed to full when this button have been selected and AC comes ON too.  I am just guessing what could have possibly happened. I have no Yaris so not very familiar.
Btw in hot and humid weather outside air temperature like around 20C°+ using AC is highly recommended.
The reason is because  the hybrid Battery cooling system sucks air from the interior and in general the batteries likes room temperature 15-25C°.
While driving the car the hybrid Battery warms up especially when going downhill, been coasting in ev mode or fast motorway speeds and without  AC the hybrid Battery  temperature can remain relatively high and anything from 40C° and above its not good.
The cooling fan will increase the speed once the battery reaches 39c° but the air flow will remain on the warmer side. With AC on the car will be able to maintain more appropriate hybrid battery temperature. 
No need to freeze inside, you can set at 23 -24C° on the climate control display. I personally keep at 22C° and during winter do not use AC at all as I don’t like it much either but in summer definitely it’s ON, mostly in auto mode. 
 

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1 hour ago, TonyHSD said:

Did you by any chance pressed on the front screen defrost button, usually automatic climate controls set the fan speed to full when this button have been selected and AC comes ON too.  I am just guessing what could have possibly happened. I have no Yaris so not very familiar.
Btw in hot and humid weather outside air temperature like around 20C°+ using AC is highly recommended.
The reason is because  the hybrid battery cooling system sucks air from the interior and in general the batteries likes room temperature 15-25C°.
While driving the car the hybrid battery warms up especially when going downhill, been coasting in ev mode or fast motorway speeds and without  AC the hybrid battery  temperature can remain relatively high and anything from 40C° and above its not good.
The cooling fan will increase the speed once the battery reaches 39c° but the air flow will remain on the warmer side. With AC on the car will be able to maintain more appropriate hybrid battery temperature. 
No need to freeze inside, you can set at 23 -24C° on the climate control display. I personally keep at 22C° and during winter do not use AC at all as I don’t like it much either but in summer definitely it’s ON, mostly in auto mode. 
 

Thanks for the possible pointers Tony. Will try a few of the suggestions on my 48 mile trip(s) tomorrow. Will keep you posted. 

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It’s such a shame that so many people don’t take advantage of this fantastic bit of kit.  The automatic climate control is a wondrous device, capable of many things and when allowed to do its thing, will keep the interior very pleasant.   You also paid a lot of money so if you don’t use it, it’s like having opening doors then climbing in through a window.  Set it to auto, set the temperature to your desired level (usually around 20-22 deg C) and leave it bee.  On a cold morning you will find it hardly does anything at first. This is because it knows the only air it can deliver is cold.  What do 95% of the owners do?  Turn the temperature right up along with the fan speed.  Well done, that just chills the interior and in fact slows down the heating process.  Left alone, it will virtually steplessly, increase the fan speed as the engine increases in temperature.  You can’t beat it manually no matter how good you think you are.  At first it will favour the windscreen and then it will change gradually to warm your tootsies.   Furthermore, once you have been driving a while and the interior is at the desired temperature,  it will start to feed cooler dehumidified air to your face through the centre vents.  On hot days it does the opposite.  It will rapidly cool the interior then maintain it with a slower fan speed.  Virtually every taxi driver in Manchester will only put the ac on if requested and then they extend your life by deep freezing you after pressing every button in sight.  It’s easy, set it to auto and the same desired temperature you had in winter.   Also on very hot or very cold days it will automatically select recirculation.  This is because it can speed up the process by using the interior temperature which is always less extreme than the outside.  Later models have Nanoe X technology which generates tiny moisture particles for the skin of sensitive petals that pronounce “it makes my skin dry” - bless.  For those tightwads who say they are saving fuel, aye maybe a bit but hardly measurable on these new systems and as the intake of the traction Battery is inside the car, it might prolong the life and certainly reduce any moisture damage (don’t confuse Nanoe X air with dehumidified air.  If you’ve not tried it, try it.  You might be surprised just how good it is.

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On the road in 30 minutes. Lets give it a go and see what happens.

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I was once in a police car on a very hot, humid day. The driver said there was something wrong as they had to keep using the wipers to clear the windscreen. I suggested they took the A/C off max and changed the distribution from demist.

A friend will put the heat and fan on max on cold days to the face level vents. Frying the eyeballs while your feet freeze. They also had the car for over a year without realising it had A/C.

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3 hours ago, glencrannog said:

On the road in 30 minutes. Lets give it a go and see what happens.

It might not do a lot today because the ambient is mid range but if you’ve got horrible weather like here, you’ll never get steamed up windows as Bob says above 👍

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I must admit I'm used to having to adjust manual systems, so the urge to poke and adjust the climate control was almost irresistible, but having had the car for a while now it basically gets set to 21C and I don't think I've touched it in a year except to occasionally turn it off if I'm stuck in traffic and trying to slow the rate the traction Battery drains to stop the engine starting! :laugh: 

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Toyota climate controls are really good indeed. All that Don has explained above it’s true and applies to older models too except the nanoe x thingy and the system even works automatically even if set in manual mode.
I do prefer without AC during winter time as there are plenty of heat and enough dry and fresh air from outside, the ac is not needed for my use and even so the system works exactly as explained 👌 My favourite temperature is 22 C° and small adjustments up or down half or one degree make noticeable difference. 
Two important things for long term reliability and maintenance: 

1. Change cabin  filter every year or every oil change 

2. Keep plastic gutter air intake  below the windscreen clean and free from debris. 
And perhaps third one regas the ac every 3-4 years with correct oil and gas. 
image.thumb.jpeg.5d9bf308d66d10b0f557e6cb9bbbc397.jpeg

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Sorry for taking so long to reply. (Computer password problems).

So put it on AC and Automatic with 21 degrees and 2 bars on the speed of the motor. Set off and it "growled" nearly as much as the petrol engine for the first 300 yards. As soon as it cut onto electric driving the heater went quieter. OK all the way for the first part of the journey (15 miles). 2 more stops in the next 11 miles and the heater "growl" each time restarting. Definitely cannot switch the whole display off with the "off" button. Not too bothered really, just slightly annoying, but I'm going to learn to live with it I think.

Again, many thanks for the replies.

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Try turning off right hand control dial from automatic led lit and select low fan speed with ac on or off as you preferred setting.

Or on auto choose ECO mode.

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8 minutes ago, Derek.w said:

Try turning off right hand control dial from automatic led lit and select low fan speed with ac on or off as you preferred setting.

Or on auto choose ECO mode.

Will try that Sunday Morning when I more or less do the same journey

 

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Could the 'growl' be the flaps and valves sorting themselves out into the optimum positions for the settings?

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2 hours ago, glencrannog said:

Will try that Sunday Morning when I more or less do the same journey

 

Something amiss there Brian.  If you set it to auto then change the fan speed you override it again.  You should press the auto button and the only thing lit up on the display should be the left and right temperature.  

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Still doodling with it, but not really bothering me that much. Will leave it, all being well, till service time and then ask the questions.

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Hi, just a long shot. Remember that Hybrid cars of this day and age have various fans working.

There is one underneath the back seat cooling off the Hybrid System Battery and the 12 volt Battery. If the car is hot inside, it will come on straight away and will remain on.  It's hardly noticeable, but once we hear a sound we tend to stay with it or hear it when it is not there by comparing it with our so called noise problems...

Better read the user manual. Try and find out if that is the case.

Anyway, here is a story.  Friend bought a Toyota van. Driving it, he could hear a whistling noise that would increase as he sped up. No one could find it. Not even Toyota. Off course, no one thought of checking the windows. The passenger side window was not closing properly, leaving a tinny little gap through which the wind would blow.  weeks later...

My VW Golf has parasite noises on the side mirrors. Drives me nuts at times and certain speeds as well as wind conditions. Took my Aerodynamics thinking to offset some. Off course I would have to glue some strips of plastic to the mirrors... I left the idea on the bench. :)) I just ignore it.

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Thanks Alkibir, but the small growl is definitely coming from the heater motor area.

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23 minutes ago, glencrannog said:

Thanks Alkibir, but the small growl is definitely coming from the heater motor area.

If it really sounds very unusual perhaps it’s a good idea to record and share with us or visit a dealer to have a look. Although it’s a new car there might be something odd from the manufacturing process or something else that needs to be addressed., for example a loose label or wires etc. Generally speaking  the fans in these cars are quiet at low speeds. 

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