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Charge Port Light Randomly Turning On/Off During Day While Plugged In

Discussion in 'Model S: Battery & Charging' started by MonseyGuy, Apr 18, 2017.

  1. MonseyGuy

    MonseyGuy Supporting Member

    Joined:
    Feb 26, 2017
    Messages:
    75
    Location:
    Monsey, NY
    Hi,

    Haven't been able to find any info on this via search. I have a 2017 Model S60D and I've noticed that when I leave it plugged in from the night before the Charge Port LED comes on at random times (the doors are locked and the keys are far away). Sometimes I go out to get the mail or take out the garbage and it's lit blue or green. Is the car saying hi to me? ;)

    Is the random light lighting expected behavior?
    Perhaps it happens if/when HVAC kicks on for cooling or heating battery which "activates" power and the LED?

    Thanks in advance.
     
  2. strider

    strider Active Member

    Joined:
    Oct 20, 2010
    Messages:
    3,153
    Location:
    NE Oklahoma
    The car can "wake up" for a variety of reasons. Someone opens the Tesla app on their phone, a key fob comes near, someone pushes the button on the charge cable, pushes on a door or trunk handle, etc. As you say it will also "wake up" to heat or cool the battery.

    It is expected behavior.
     
  3. JHuberman

    JHuberman Member

    Joined:
    Dec 28, 2016
    Messages:
    116
    Location:
    Raleigh
    I have seen and questioned the same situation (and got no definitive answers). I know there were no external physical events or connections from my app happening to the car. I guessed that when the charge level dropped and it started charging again the light came on for a few minutes. It mostly seems to go off within a few minutes.
     
  4. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    13,368
    Location:
    Texas
    That would be normal as the car wakes up to check the 12V battery charge level, etc.
     

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