Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Battery - 12V (Remove and Replace)

Tesla Model 3 2017-2024 Service Manual / Electrical / 12V Battery and Fuses / Battery - 12V (Remove and Replace)

Battery - 12V (Remove and Replace)

Remove

  1. Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace).
  2. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  3. Remove the cabin intake duct. See Duct - Cabin Intake (Remove and Replace).
  4. Disconnect 12V power. See 12V Power (Disconnect and Connect).
  5. Remove the cover for the 12V positive terminal.

Battery - 12V (Remove and Replace)

  1. Loosen the nut that attaches the positive lead to the battery, and then remove the lead from the battery. Torque 6 Nm
  2. Remove the 12V battery strap. See Strap - 12V Battery (Remove and Replace).

Battery - 12V (Remove and Replace)

  1. Disconnect the hose from the LH side of the battery, and then remove the battery from the vehicle

Install

Installation procedure is the reverse of removal, except for the following:

Caution:

Before installing the new battery, make sure that the new battery's Open Circuit Voltage (OCV) is above 12.6V. If the OCV is between 12.4V and 12.6V, recharge the new battery. Any battery below 12.4V must be discarded.

    READ NEXT:

     Beam - 12V Battery (Dual Motor) (Remove and Replace)

    Remove Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace). Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace). Remove

     Beam - 12V Battery (RWD) (Remove and Replace)

     Beam - 12V Battery (RWD) - Remove

    Remove Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace). Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace). Remove

    SEE MORE:

     Puddle Light - Rear Door - LH (Remove and Replace)

    Remove Use a small screwdriver or pry tool in the slot at the front of the puddle light to pry the light out of the bottom of the rear LH door trim panel. Release the clips that attach the front of the puddle light to the bottom of the door trim panel, and then separate the light fr

     How Airbags Work

    Airbags inflate when sensors detect an impact that exceeds deployment thresholds. These thresholds are designed to predict the severity of a crash in time for the airbags to help protect the vehicle's occupants. Airbags inflate instantly with considerable force accompanied by a loud noise.

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