Tesla Model S Owners & Service Manuals

Tesla Model S: External charging equipment error detected

Try different charging equipment

AC charging cannot begin due to a condition that prevents your vehicle from charging with AC power. DC fast charging / Supercharging should still function as expected.

Your vehicle's onboard charger is detecting input voltage at the charge port when no power has been requested from the external charging equipment, which indicates the external charging equipment is not functioning as expected.

This can sometimes be caused by a hardware issue specific to the external charging equipment, which prevents the charging equipment from switching power to the vehicle on or off when requested. It could also occur due to another condition affecting the external charging equipment, or a condition affecting your vehicle itself.

As this alert is usually specific to external charging equipment, and it does not typically indicate an issue with your vehicle that can be resolved by scheduling service, it is recommended that you try charging with multiple, different types of charging equipment.

You can also try charging your vehicle using a Tesla Supercharger or Destination Charging location, all of which can be located through the map on your vehicle's touchscreen display. See Maps and Navigation for more details. Additional third-party charging stations may also be available in your area to help you to pinpoint the issue.

For more information on troubleshooting Mobile Connector or Wall Connector status lights, refer to the product's Owner's Manual at Charging & Adapter Product Guides. If using other external charging equipment, refer to the manufacturer's provided documentation for troubleshooting tips.


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     Service is required

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     Unable to charge with Mobile Connector

    Inadequate outlet grounding - Try another outlet The Mobile Connector has detected that the electrical outlet has insufficient grounding, likely caused by an inadequate or missing ground connection.


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    Model S has five USB ports: Two USB ports are located in the front compartment of the center console. These can be used to charge USB devices and to play audio files from a phone or USB device. Two USB ports are located below the rear touchscreen that can be used to charge USB devices. O

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