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12 V Battery Jump Start

Discussion in 'Model X: Battery & Charging' started by napabill, Aug 17, 2016.

  1. napabill

    napabill Active Member

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    I can't seem to find any discussion about accessing the 12 V battery for jumping in the Model X. My previous Model S had issues with the 12V and it was virtually inaccessible. Am hopeful the X is better, but I can find nothing in the Manual discussing it.
     
  2. Phil Seastrand

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    You can find the instructions in the "Model X Towing Instructions" PDF on your MyTesla Page. Here's the instructions:

    If the car does not turn on, jump the 12V battery. This will provide enough power to access “Tow Mode”. There is no manual release for the parking brake. Jump Points are located in the front trunk.
    1.Pull back the plastic cover located in the back of the front trunk compartment.
    2.Carefully pull back the plastic cover of the fuse box which you will find to the far right. Use both hands as shown in the image below.
    3.The positive terminal is located in front of the fuse box compartment.
    4.The ground post is a bolt located on the passenger side of the compartment.
    5.Attach your red positive lead to the positive terminal found in step 3. Attach your black negative lead to the ground post found in step 4.
     
  3. napabill

    napabill Active Member

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    Thanks for the reply. There is no "Model X Towing Instructions" PDF on your MyTesla Page" on MyTesla page.

    If you jump the 12v will there be enough juice to open the contacters in the big battery?
     
  4. FarmerDave

    FarmerDave Member

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    It's on page 178 of the Owner's Manual. "Caution: If the electrical system is not working, and you therefore cannot release the electric parking brake, attempt to quick start the 12V battery. For instructions, call Tesla."
     
  5. Phil Seastrand

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    You're right - I can't find where I located that document. :-(
     
  6. Winston

    Winston Member

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    First Responders | Tesla
     
    • Like x 1
  7. ThatOneRoadie

    ThatOneRoadie Member

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    The contactors don't need much amperage, and once they close (as long as the traction battery has enough of a charge) they will begin powering/charging the 12V system through the DC-DC converter.
     
  8. LastGas

    LastGas Member

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    For the Model S, it's in the Quick Guide.
     
  9. idoco

    idoco Member

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    The problem with the Model X (and the refreshed Model S) is that if 12V is dead you might not be able to open frunk electronically. Which means you have to open the frunk manually (instructions in the first responders manual) before you can get to the fuse box and jump points.

    In the classic MS you have access without opening the frunk by popping of the nose cone.
     

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