This alert is usually specific to external charging equipment and power sources and does not typically indicate an issue with
your vehicle that can be resolved by scheduling service.
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 on page 144 for more details.
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.
PCS_a073
External charging equipment error detected
Try different charging equipment
What this alert means:
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.
What to do:
This alert is usually specific to external charging equipment and power sources and does not typically indicate an issue with
your vehicle that can be resolved by scheduling service.
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 on page 144 for more details.
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.
PCS_a090
Charging slowed - Some AC phases not powered
Check power source and charging equipment
What this alert means:
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.
What to do:
This alert is usually specific to external charging equipment and power sources and does not typically indicate an issue with
your vehicle that can be resolved by scheduling service.
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 on page 144 for more details.
Troubleshooting Alerts
256 MODEL Y Owner's Manual
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