Also make sure the wall plug adapter is not covered by anything, and that there is no heat source nearby. If the alert
persists in normal ambient temperatures (under 100°F or 38°C), and occurs during multiple charging attempts, this
may indicate a condition aecting the Mobile Connector or your vehicle. It is recommended that you schedule
service at your convenience.
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 164 for more
details.
For more information on troubleshooting Mobile Connector status lights and charging issues, refer to the product's
owner's manual.
VCBATT_a180
Electrical system power reduced
Vehicle may shut down unexpectedly
What this alert means:
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.
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.
What to do:
It is recommended that you eliminate or reduce your use of any non-essential features. This can help your vehicle
maintain adequate electrical power for essential functions.
If this alert remains active, schedule service immediately. Without service, your vehicle may shut down unexpectedly
or may not restart.
VCBATT_a182
Schedule service to replace low voltage battery
Software will not update until battery is replaced
What this alert means:
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.
What to do:
It is recommended that you have the low voltage battery replaced at your earliest convenient opportunity.
You can schedule service via your Tesla Mobile App, or with an independent service provider that oers low voltage
battery replacement for your vehicle. Please note that independent service provider options may vary, based on your
vehicle configuration and your location.
If the low voltage battery does not have enough electrical power to turn on your vehicle or open the doors, follow
the instructions in If Vehicle Has No Power on page 224.
For more information on the battery system, see High Voltage Battery Information on page 178.
VCBATT_a191
Electrical system power reduced
Vehicle shutting down
What this alert means:
Troubleshooting Alerts
273Troubleshooting
