Tesla Model S: Charging slowed - Some AC phases not powered
Check power source and charging equipment
Charging speed has been reduced due to a condition that affects your vehicle's ability to charge with AC power. DC fast charging / Supercharging should still function as expected.
Your vehicle's onboard charger has detected that one or more power converters is not receiving the necessary AC input voltage. For example: during three-phase charging, one phase might be missing from the AC input power provided by the external source. This could occur due to a condition affecting the external charging equipment, the power source it is connected to, or your vehicle itself.
As this alert is usually specific to external charging equipment and power sources, 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
Schedule service now
This alert is set remotely by Tesla when a condition requiring service is
detected on your vehicle.
This alert can be set due to various conditions. When you schedule service, m
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.
Unable to charge - Mobile Connector GFCI tripped
Unplug charge handle from charge port and retry
The vehicle cannot charge because the ground-fault circuit interrupter (GFCI)
in the Mobile Connector has tripped.
Like the GFCI in a wall outlet, thi
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High Voltage Components
Heat Pump Assembly
Front Drive Unit
Service Access Panel for High Voltage Components (Penthouse)
High Voltage Battery
High Voltage Busbars
Rear Drive Unit
Charge Port
NOTE: Plaid version not shown
WARNING: The high voltage system has no user serviceable parts. Do not
disassemble, remov
Unable to charge - More than 1 primary unit
Ensure only 1 Wall Connector is set as primary
What this alert means:
Load sharing (circuit breaker sharing) network: Need one (and only one) Wall
Connector set as primary.
What to do:
Only one Wall Connector can be set to a primary configuration. Have your
electrician confirm:
1. Only one of the
