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Low temperature light?

Discussion in 'Gen 2 Prius Main Forum' started by Kev1000000, Oct 3, 2004.

  1. Kev1000000

    Kev1000000 New Member

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    So last night, i drove my girlfriend home at around 6am :p

    Anyway, it was about 35 degrees outside and i noticed the dashboard flicked on a light that looked like a road with a snowflake on it.

    I checked the manual and it said its a light that tells you its below 3*C or 37*F. Why does that matter? The car seemed to drive normal, it would still shut off and go into stealth mode, so why is it needed to have a light letting us know its cold outside?
     
  2. priusham

    priusham New Member

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    It's there as a reminder for those of us lucky enough to live in Michigan that we gotta start thinking about taking the boat out of the water.

    In other locations, folks see it as a warning that surface moisture on the road just might be frozen even if you can't see it.

    =paul=
     
  3. Kev1000000

    Kev1000000 New Member

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    i see, but wont it get annoying in the winter?
     
  4. Speedracer

    Speedracer New Member

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    Mem already that time of yr :roll: Well, snow season starts just another month so... How much I hate it abut it now I miss it... Specially fall color around U.P(BTW I uses to live in Metro Detroit)
     
  5. Frank Hudon

    Frank Hudon Senior Member

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    in a lot of places the air temp might be above freezing but bridge decks and such might be ice covered. When the wife got her car last November it was on and the salesman didn't know what it was and we didn't either as the Classic only had OAT on the MFD. A quick check of the owner's manual and the icon was listed.
     
  6. Speedracer

    Speedracer New Member

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    <div class='quotetop'>QUOTE(Kev1000000\";p=\"43192)</div>
    In the few weeks you might uses to it, I uses to have VW which had same warning light.. Took me few weeks to uses to it... If dont wont see it just put electrict tape infront of warning lights :mrgreen:
     
  7. Ray Moore

    Ray Moore Active Member

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    The reason the light is there is to tell you that the engine will require energy to maintain it's warmth for low emmisions sake and to tell you of a warmer that maintains the temperature of the traction battery. NiMH batteries are susceptible to greatly reduced output at low temperatures due to the slower chemical reactions within the battery. In order to overcome this, there are heat strips that keep the battery warm but which do drain energy from the battery. Feel free to correct my memory of this if I'm mistaken, but I'm remembering it this way. These are two of several reason that mileage figures are lower in the winter for the Prius. All cars suffer lower mileage in the winter but these two reasons are almost exclusive to the Prius. Someone more familiar with these issues, please jump in.
     
  8. prius04

    prius04 New Member

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    Why would the car have a warning lite to tell you that your gas mileage is going to take a hit?

    Priusham had the right answer. The lite is to warn you that you may be about to lose traction due to ice on the roads.

    It's a safety feature, pure and simple.
     
  9. efusco

    efusco Moderator Emeritus
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    <div class='quotetop'>QUOTE(Ray Moore\";p=\"43196)</div>
    That is not correct. Although the information is accurate, that is not the purpose of the snowflake (true but unrelated in other words).

    As (I think it was Frank) said above it is to warn you of potential black ice/icing conditions that can occur any time the temp is less than 37 degrees.
     
  10. paprius4030

    paprius4030 My first Prius

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    That Damn light came on last week and it tells ME it's time to go south, like the geese, LOL
     
  11. VARedDevil

    VARedDevil New Member

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    The lights just a caution to remind you that conditions outside are cold enough that you could experience icing on the road surface. All of my vehicles, (except for the HOG, I don't need a light on that to tell me it's too freakin cold to ride it), have this warning on them...they all also have an outside temp display. It's just a friendly reminder to be a little more aware that the driving conditions could be different due to potential icing of the roads.
     
  12. bruceha_2000

    bruceha_2000 Senior Member

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    <div class='quotetop'>QUOTE(priusham\";p=\"43191)</div>
    Come to Vermont - the highway sign seen most often is: "Bridges Freeze Before Roads". Just in case you might think the highway dept wasn't specific enough: paraphrasing (because the last word is not PC) a local comic (The Logger) - "But the roads still freeze you ......"
    The one seen 2nd most often? "No Left Turn" at the top of every on ramp. In case you weren't sure interstates are 1 way roads I guess.
     
  13. daniel

    daniel Cat Lovers Against the Bomb

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    YES!!!!! I hate it, I hate it, I hate it, I hate it, I hate it, I hate it, I hate it, I hate it, I hate it, I hate it, I HATE IT!!!!!!!!!!!!!! Seven confounded months out of the year that confounded blanketey-blank snowflake site there staring at me reminding me that I'm freezing my you-know-what off.
     
  14. Speedracer

    Speedracer New Member

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    <div class='quotetop'>QUOTE(daniel\";p=\"43609)</div>
    :mrgreen: Yap winter suxs.... I uses to enjoin to do "Donuts" at office parking lot before everyone come :mrgreen: If got tired looking at warning just cover with handy electric tape :mrgreen:

    <div class='quotetop'>QUOTE(bruceha_2000\";p=\"43296)</div>
    Look at bright side most snow belt state resident can handle ICE and Snow. But southern state will shut down hole city(like Houston) :mrgreen:
     
  15. bruceha_2000

    bruceha_2000 Senior Member

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    Saw the "snowflake on the road" symbol for the first time yesterday. "Whoa, what's that icon on the dash??" At first it looked like an asterisk in a tent with water dripping through the top, then I figured out what it was. :)

    ./;\
    / * \

    "Oh, its the snowflake we were posting about just yesterday". Kind of an attractive gold colored. Later I noticed the car popped one up on the MFD as well. Yes, I can imagine it will get annoying between now and May 2005.
     
  16. DOC

    DOC Junior Member

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    I communicated with Toyota via Email about this. Here is its reply.

    "The Low Temperature indicator light is designed to make sure the driver is aware that the vehicle is being operated in cold temperature.

    The hybrid battery pack has thermal limitations at low and high ends. If the battery is extremely cold, energy cannot be extracted, so the Low Temperature indicator light may turn on indicating total power output is limited. In this case, the gasoline engine runs longer until the pack warms up."
     
  17. Frank Hudon

    Frank Hudon Senior Member

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    wrong indicator light, the one they are referring to is the "turtle" and not the snowflake.
     
  18. Heikki

    Heikki Junior Member

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    Winter has arrived

    I live in southern Finland and I saw low temperature light the first time about four weeks ago. Since last week light stays permanently on.
    Winter has arrived!
    I feel lucky becauce I have factory fitted seat heaters.
     
  19. roger

    roger New Member

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    I'll never see it :(
     
  20. efusco

    efusco Moderator Emeritus
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    :( Came on this morning for the first time this fall/winter. :(

    On the up side, I now know that I've REALLY learned to drive the Prius for maximal efficiency. I had my MFD readout at 56.2mpg (down from 58.4 at one point due to much colder temps the past 4-5 days). I drove my usual route to work (about 12 miles). First 5 minute bar was about where I expected but better than what I would have seen last year...around 35-40mpg.

    When I got to work the tank mileage was still at 56.1 despite 35 degree temps. I'm pretty thrilled with that as last year I'd have definately been in the 40s at that temp over this route.