Tesla Model S Owners & Service Manuals

Tesla Model S: Setup

Warning: Only technicians who have been trained in High Voltage Awareness are permitted to perform this procedure. Proper personal protective equipment (PPE) and insulating HV gloves with a minimum rating of class 00 (500V) must be worn any time a high voltage cable is handled. Refer to Tech Note TN-15-92-003, "High Voltage Awareness Care Points" for additional safety information.

These instructions are for the 4th generation battery charger/discharger tool. The 4th generation tool has the following features:

  • The serial number includes "G4"
  • The charger/discharger tool has a rectangular load bank connector
  • The load bank has a display below each fan

HV Battery Charge/Discharge - 4th Generation Tool (Out of Vehicle) HV Battery Charge/Discharge - 4th Generation Tool (Out of Vehicle)


  1. Connect the high voltage components to the charger/discharger tool, using the included harnesses.


    Warning: Cover the charger/discharger tool load bank connector with its protective flap when the HV cable is not installed.

    Note: Hot air is exhausted from the rear of the discharger box when the battery is discharging. Position the cables away from the vents on the rear of the discharger to prevent them from being overheated.

  2. Connect the components to the wall outlet, using the included power cables.


  3. Connect the signal and communication components, using the included cables. Some cables might already be connected.

    Note: The DB9-RJ45 Ethernet cable should be connected to the "IN" port on the power supply.


  4. Connect the low voltage (LV) connector to the battery, using the included harness.


  5. Set the front panel control switches to the indicated positions.



     Starting/Discharging the System

    Starting the System Press the emergency stop button to disable HV systems. Pull out the display/keyboard/trackpad tray. Press the red power button to turn on the on-board PC. Follo

     Charging the Battery

    Select Manual Mode from the Charge/Discharge Mode menu. Type the desired SOC in the Target SOC% field, or drag the Target SO


    Charging does not start. The green "Ready" light in the software application is dimmed. Check that the HV power supply is plugged in and turned on. Check the connections at th


     Back Rest Assembly - Seat - 2nd Row - RH (Remove and Install)

    Removal Remove RH rear seat bolster (refer to procedure) Use a pry tool to release the grommet that secures the RH 2nd row backrest. Pull up on the RH backrest, then pull it outwards to disconnect it from the LH

     Cable blocked - Charge port latch may be frozen

    Try using Defrost Car button in Mobile App The charge port latch cannot unlatch the charge cable, and cold ambient temperature is detected. To remove any strain on the cable, re-insert the charge cable fully into the charge port inlet. Try again to unlatch the charge cable. If the charge cable

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