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New V with defective panel dimmer and ???

Discussion in 'Prius v Main Forum' started by tanasit, Mar 30, 2012.

  1. tanasit

    tanasit Member

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    Just got my new Prius V 5 today and the first thing I found is that the instrument panel dimmer doesn't work! Moreover when I look on page 256 of the manual for the PCS ( Pre-Collision System), I found no switch under the steering wheel as shown! The dealer told me to bring it in tomorrow.

    It will take me a few more days to read all the manuals...:confused:
     
  2. Chazz8

    Chazz8 Gadget Lover

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    You need the Adv. Tech Pkg (ATP) for PCS and everything else they bundled in that package.

    Oh, I see you have ATP. Make sure you have ATP on the window sticker and double check the VIN. Maybe they gave you the wrong vehicle?

    I went looking in my v for the buttons. You really have to stick your head in under the panel behind the steering wheel and look up. They are pretty far back there, but I did find two buttons. One for resetting tire pressure setting and the PCS on/off. Both are clearly labeled if you can get your head all the way back there.

    Defiantly have the dealer look into the dimmer dial.
     
  3. DAVEJAN

    DAVEJAN Junior Member

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    I also can't find the PCS switch and I have the ATP. There are four switches to the left,low down, by the steering wheel. Headlight washer, parking assist, dimmer and a blank. I looked under the steering wheel with a flash light and I can't find a PCS switch either. Be interested in what the dealer tells you.
     
  4. DAVEJAN

    DAVEJAN Junior Member

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    After I posted I reread Chazz38. If you locate the floor illumination light (amber) and go under the dash about two inches straight back from the lamp, there are the two switches (PCS and Tire Pressure reset).
     
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  5. Chazz8

    Chazz8 Gadget Lover

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    Yeah, DAVEJAN. I'm glad you found it.

    I also thought of the TIre Pressure restet swtich/button as shown on page 390 of the User Manual. I think all Prius v have the TIre Pressure restet swtich/button.

    So tanasit, find that button and look for your PCS On/Off. I hope this helps you tanasit.
     
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  6. tanasit

    tanasit Member

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    I took it to the dealer and the service manager went with me to investigate. But first he wanted to check my paper work and see if the AT package includes the PCS and sure it does. Next with the manual opened on page 256 (I think), we looked at the picture and clearly the PCS switch is not there. He went down further under the steering column and found none. He called his tech guy and was told it was down even further. Finally we found it. I haven't tried it yet because I wasn't sure how or what should be the test subject up front.

    My question is when do we turn the PCS on and why do have to turn it off?


    As for the dimmer switch, he was trying to see if it has to be programmed via the display screen and found none. Again he called his tech and was told that we have to press the wheel before turning it, but no luck. I can feel the click when the wheel was turned all the way up but no changes on the display brightness. He then decide to order a new dimmer switch. Also when I turned the headlight on, the display brightness did NOT go down so hopefully once the switch is replaced all will be good.

    PS. As a part of my deal they installed the clear applique on the rear bumper but with finger prints on both ends and several bubbles underneath! I showed that to the service manager who ordered a new one for me next day but I told them I want to install that myself. However, when I went to pick up the applique the part manager told me that I have to let their detail guy install it which I declined by telling him to ask the service manager why. I actually plan to put the rubber one on top of it. I was surprised to see the $79.00 sticker price on that clear thin decal with Prius V logo while the thick rubber one is under $50??
     
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  7. Keiichi

    Keiichi Active Member

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    Time you would turn PCS off would be if you don't want the system to cinch your seatbelts and apply the brakes. According to a video, the PCS system will cinch in the seatbelts and apply more power to brakes when you have not tried to prevent a collision and in cases of collision is imminent. I would also hazard to guess that it would be an override should the system be locked in that situation or it is a reset, as it is stated it goes off that state when you put the car in brake after the situation.

    As for having it on, it should be on initially, and if not, should be turned on more as a precautionary, as it will help in situations such as giving a warning if collision is possibly imminent, as well as allow the passengers to have their seatbelts secured for the possible collision. The braking system is also given extra 'power' in case you aren't applying the brakes to slow down the car enough or at least help reduce the momentum to make the collision have less energy upon impact.
     
  8. Chazz8

    Chazz8 Gadget Lover

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    Thanks for sharing your experience at the dealer.

    Quote fron tanasit
    "My question is when do we turn the PCS on and why do have to turn it off?"

    I wanted to take a stab at answering the 2nd part of your question. I think the only reason to turn off the PCS would be if you didn't trust the system and were afraid that it would hurt you instead of save you. I have not heard anything to make me even suspect that the PCS would do anything but save you. I think it would take a near phobia of technology to turn the PCS off, or some weird personal experience.

    I just thought of another reason to turn the PCS off. If it malfunctioned and was acting like it could hurt you. Very very unlikely, but a good reason to turn PCS off until a technician could take a look at it.
     
  9. Cecilia48

    Cecilia48 New Member

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    [​IMG]I also can't find the PCS switch and I have the ATP.
     
  10. Keiichi

    Keiichi Active Member

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    Read Post #4 in this thread. Generally, you don't need to mess with that switch unless you want to disable that feature out of not caring for your safety or if it is malfunctioning.
     
  11. tanasit

    tanasit Member

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    I really want to test and see if it's working. Earlier today when I come to the red light and when there's a car in front of me, I tried to get as close as possible before I hit the brake and the PCS never kicked in, perhaps I brake too soon.
    Tomorrow I will set up a table cloth hanging with a rope in front of my car and see how it goes. I have the orange cone but afraid it'd be too small for the system to detect.
     
  12. Chazz8

    Chazz8 Gadget Lover

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    From the animation explanation videos, it seems that it will not trigger automatic braking until it detects/calculates that you are in an unavoidable collision and try to lessen the impact. It will warn you a little earlier, before the collision is unavoidable or highly probable.



    I would just trust that it works, drive to avoid triggering it and enjoy the ride.
     
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  13. Keiichi

    Keiichi Active Member

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    The other thing is it kicks in when you are at a sufficient speed that you will collide unless you don't do something. And if you still don't do anything, it will try to put on the brakes, but this will not prevent the crash still, but will try to lessen the energy of the collision as much as it can.
     
  14. 12get12

    12get12 Junior Member

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    Based on my observation, the dimmer switch works in conjunction with the light sensor. The Dimmer switch does not seem to work during daytime, but try it at night time and it works just fine.
     
  15. toyofixer

    toyofixer Toyota Tech

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    Please dont try running up on some one to test this. If you are going fast enough for the system to work you will feel it just before you crash.
    I had a great instructor for my Prius new model class I dont think all of the instructors did this but we were able to feel it. We used one of those reflective sunshades for the inside of a car rolled loosely so it was about 18" around. In an OPEN parking lot we stood it up and ran the car into it at I believe 30 mph. Just before it hit the sunshade you could feel the car slow down and the belts tighten. If you were watching from behind the car you could see the brake lights come on also. It is not designed to avoid the crash just lessen the impact. I am not telling you to try this but if you want to feel it this is better than crashing.
     
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  16. Keiichi

    Keiichi Active Member

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    Agreed... Please never do 'live' testing, as I am sure your insurance, the people you may incidentally hit, and probably your own pocketbook would appreciate the fact that you don't do this.

    One of the things mentioned is that even with the safety features involved, this does not mean it excludes you, as the driver, to being responsible in paying attention to what you are doing and also being a defensive driver against people who are more clueless than you when it comes to paying attention.

    Failure to do so is not the failure of the car's safety feature, but in the driver.
     
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  17. swg

    swg 12 Prius / 13 Volt

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    Can someone please confirm that the dash light dimmer switch lights up at night? Can't believe it wouldn't but I guess mine is burned out, although it still dims the dash. V3
     
  18. 12get12

    12get12 Junior Member

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    The dimmer switch it self does NOT light up. The first car I owned that does not have a light on the dimmer switch.
     
  19. swg

    swg 12 Prius / 13 Volt

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    Thanks for checking. Makes perfect sense... your in the dark and need to adjust the dash lights and can't find the switch :confused:
     
  20. tanasit

    tanasit Member

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    Just tried it last night buy no luck.
    Thanks