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Change in Heating System?

Discussion in 'Model S: User Interface' started by CaptDaveHowe, Dec 30, 2015.

  1. CaptDaveHowe

    CaptDaveHowe Member

    Mar 12, 2013
    LI, New York
    I noticed when driving a loaner from Tesla upon a recent service appointment that the heat was almost non-existent. It was a cold, rainy day and when I turned the thermostat up all the way to 76, the heat did not go on. Now back in own 2015 S 85, with the weather getting colder, I'm noticing the same thing. Is this a soft ware (update) issue? My thought is that there may have been a software update to conserve energy. Anyone in the cold weather states experiencing the same?
  2. cwave1

    cwave1 Member

    Oct 26, 2013
    Mississauga, ON, CANADA
    This is an issue with v7 up to around 2.9.12. If you search, you will find a few threads that have covered this in detail.
  3. ecarfan

    ecarfan Well-Known Member

    Sep 21, 2013
    San Mateo, CA
    And here is one such thread Heat / HVAC on 7.0 - poor performance?
    Note: although the thread starts with a post about poor heat in a "classic" S, it also includes posts about the problem in newer cars.

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