Connecting Accessories to the 48V Power Feeds

Cybertruck is equipped with two power feeds. The power feeds provide access to the 48V low voltage system, which can be used to power accessories.

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CAUTION
Do not connect a power source (such as a solar panel or external battery) to a power feed. Doing so may damage Cybertruck.
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Warning
The two power feeds are the only points at which you can connect accessories directly to the low voltage system. Do not use any other low voltage wiring in Cybertruck to power accessories. Doing so can lead to unpredictable or unexpected results (such as a total loss of power steering) and can affect the performance of Cybertruck and the safety of its occupants. Any damage caused by using or installing non-approved parts, or by performing non-approved modifications, is not covered by the warranty. Tapping into the power feeds should only be done by knowledgeable and experienced individuals. Tesla does not accept liability for death, personal injury or damage that occurs if you install accessories using non-approved methods or circuits.

48V Power Feed Specifications

There are two power feeds:

  • One power feed is located on the roof (400W maximum draw).
  • One power feed is located in the powered frunk (400W maximum draw).

Each power feed operates in the following range:

  • Minimum: 28V
  • Nominal: 44–50V
  • Maximum: 58V

Each power feed contains three wires:

Table 1.
Wire Color Function
Red with a blue stripe Positive (+) terminal: Provides 48V power
Green Provides access to the Local Interconnect Network (LIN)

Roof power feed: Black with a blue stripe

Powered frunk power feed: Brown with a blue stripe

Negative (-) terminal: Provides a grounding point
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Note
The power feeds are designed to stop providing power when current that exceeds the listed specifications is detected. If a power feed unexpectedly stops providing power, reset them by touching Controls > Outlets & Mods > Reset.
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CAUTION
If the wires in the vehicle do not match this information, use the mobile app to schedule a service appointment.

Accessing the Power Feed on the Roof

  1. Ensure that Cybertruck is powered off. . Touch Controls > Safety > Power Off.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    Failure to ensure the vehicle is powered off can result in serious injury. Tesla recommends wearing appropriate personal protective equipment to mitigate any potential for injury.
  2. Locate the strip of applique on the right side of the roof and use a flat, non-marring tool to gently lift under the edge and release the five clips that hold it in place. Lift upwards to remove the applique.
  3. Locate the shrink-wrapped loop of wires. This is the power feed.
    The roof with the applique removed, revealing the low voltage wiring and the power feed highlighted in blue
  4. Remove the shrink wrap from the power feed, then splice or solder the accessory's wire harness to it.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    Use extreme care when accessing the power feed. Assume that the low voltage components of Cybertruck, including all wires and connectors, are always energized. Because the 48V low voltage system operates at a higher voltage than a typical low voltage system, there is an increased risk of personal injury, arcing, or component damage if the low voltage components of Cybertruck are handled improperly.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Carefully check the wiring of the accessory and ensure that you are connecting the positive (+) wire of the accessory to the positive wire (red with a blue stripe) of the power feed, and the negative (-) wire of the accessory to ground (black with a blue stripe). See the Owner's Manual for more information. Accessories without proper power and grounding may not function as expected, and may be damaged as a result.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Ensure that the wires are properly insulated (taped or heatshrinked) after splicing or soldering an accessory's wiring to the power feed.
  5. Ensure your accessory or attachment is properly secured to the vehicle.
  6. Replace the roof applique by pressing it into place to ensure that the trim clips are secured.
    Informational PurposesAn informational icon, calling your attention
    Note
    If a roof applique is not secured correctly, the applique could fall off of the vehicle. Tesla is not responsible for broken or missing appliques.
  7. Power on the vehicle and enable power to the power feed, if desired.

Accessing the Power Feed in the Powered Frunk

To access the power feed in the powered frunk, you must first remove the frunk lining.

  1. Ensure that Cybertruck is powered off.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    Failure to ensure the vehicle is powered off can result in serious injury. Tesla recommends wearing appropriate personal protective equipment to mitigate any potential for injury.
  2. Open the powered frunk.
  3. Ensure that Cybertruck is powered off.
  4. Remove the frunk maintenance panel by pulling it upwards to release the trim clips that hold it in place.
    The powered frunk, open with the maintenance panel highlighted in blue as its being removed
  5. Remove the two bump stops (one on each side above the headlights) by turning them counterclockwise.
  6. Remove the windshield washer fluid cap.
  7. Using a trim tool or flat, plastic tool, remove the two pieces of trim on the bottom of the frunk lining to expose the four bolts that hold the lining in place.
    The powered frunk, with highlights and arrows showing the bump stops, windshield washer fluid cap, and removable trim
  8. Using a 10 mm socket, remove the four bolts on the bottom of the frunk and the two bolts beneath the maintenance panel.
    The powered frun, with the six bolts that hold the lining in place higlighted in blue
  9. Carefully lift the frunk lining partially upward and unplug the emergency interior release connector. Once the connector is unplugged, the frunk lining can be removed.
    Open powered frunk with the six bolts that hold the lining in place highlighted
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    As you remove the frunk lining, be careful not to damage or jostle the connector for the powered frunk emergency interior release.
  10. Locate the shrink-wrapped wires. This is the power feed.
    Open powered frunk with the lining removed and the power feed highlighted in blue
  11. Remove the shrink wrap from the power feed, then splice or solder the accessory's wire harness to it.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    Use extreme care when accessing the power feed. Assume that the low voltage components of Cybertruck, including all wires and connectors, are always energized. Because the 48V low voltage system operates at a higher voltage than a typical low voltage system, there is an increased risk of personal injury, arcing, or component damage if the low voltage components of Cybertruck are handled improperly.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Carefully check the wiring of the accessory and ensure that you are connecting the positive (+) wire of the accessory to the positive wire (red with a blue stripe) of the power feed, and the negative (-) wire of the accessory to ground (brown with a blue stripe). See the Owner's Manual for specifications. Accessories without proper power and grounding may not function as expected, and may be damaged as a result.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Ensure that the wires are properly insulated (taped or heatshrinked) after splicing or soldering an accessory's wiring to the power feed.
  12. Ensure your accessory or attachment is secured to the vehicle.
  13. Replace the powered frunk lining, connect the emergency interior release connector, and replace all fasteners and trim. Torque the bolts to 12 Nm (8.87 ft-lb).
  14. Power on the vehicle and enable power to the power feed, if desired (see the Owner's Manual for more information).

Enabling Power to the Power Feeds

Once you have connected an accessory to a power feed, enable power from the touchscreen. Touch Controls > Outlets & Mods and then touch a power feed on the touchscreen to enable it.

Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Leaving an accessory powered depletes the High Voltage Battery. Power to the power feed shuts off when the capacity of the High Voltage Battery is very low.

By default, the power feeds stop providing power when you exit Cybertruck and close the doors. To instead keep the power feeds on when you leave the vehicle, touch Keep On Cabin and Bed Outlets.