b. If the alert persists, the issue is likely with your Mobile Connector.
It is recommended that you obtain another wall plug adapter or Mobile Connector as needed, based on the
troubleshooting steps above.
In the meantime, you can continue to charge with the same equipment. The charge rate will be reduced, as charge
current will be limited to 8A while this condition persists.
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 129
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 status lights and charging issues, refer to the
(UMC_a017)
Charge rate reduced - Wall plug temperature high
Wall outlet and wiring inspection recommended
High temperature detected by Mobile Connector alerts indicate the outlet used to charge is becoming too warm, so
charging has been slowed to protect the outlet.
This is not typically an issue with your vehicle or your Mobile Connector, but rather an issue with the outlet. A warm
outlet may be caused by a plug that is not fully inserted, a loose building wiring connection to the outlet, or an
outlet that is beginning to wear out.
To regain normal charge speed, make sure your adapter is fully plugged into the outlet. If charging speed does not
return to normal, contact an electrician to inspect the outlet and building wiring connections to the outlet and
complete any repairs needed.
If the outlet is worn, it should be replaced with a high-quality outlet. Consider upgrading to a Tesla Wall Connector
for greater convenience and highest charging speed.
(VCFRONT_a180)
Electrical system power reduced
Vehicle may shut down unexpectedly
The electrical system cannot maintain the voltage required to support all vehicle features.
If this alert is present while you are driving, it is possible your vehicle will shut down unexpectedly. It is also possible
that your vehicle will not restart after the current drive.
If this alert is present when your vehicle is in Park or when it first wakes, it is possible your vehicle may not have
adequate electrical power to start driving. A separate vehicle alert may be present to indicate that condition.
It is recommended that you eliminate or reduce your use of any nonessential features. This can help your vehicle
maintain adequate electrical power for essential functions.
If this alert remains active, it is recommended that you schedule service immediately. Without service, your vehicle
may not drive, may shut down unexpectedly, or may not restart.
(VCFRONT_a182)
Schedule service to replace low voltage battery
Software will not update until battery is replaced
The low voltage battery is showing degraded performance and needs to be replaced. Until the low voltage battery is
replaced, vehicle software updates will not complete.
It is recommended that you have the low voltage battery replaced at your earliest convenient opportunity.
Troubleshooting Alerts
252
MODEL 3 Owner's Manual