MyTeslaMate
VCBATT family

VCBATT_a494_LVBatteryTempBlockingOTA

Not Available

What does the VCBATT_a494_LVBatteryTempBlockingOTA alert mean?

The vehicle controller detects the low voltage (LV) battery is not within an acceptable temperature range to support vehicle electrical systems during an over-the-air (OTA) vehicle software update.

What you'll see in your Tesla

  • Not Available

What triggers it

The vehicle controller detects the LV battery temperature dropping below -20 degrees Celsius for more than 5 consecutive seconds.

When it clears

The vehicle controller detects the LV battery temperature rising and remaining above -20 degrees Celsius for more than 60 consecutive seconds.

Potential impact

As the vehicle relies on LV battery support while installing software packages, any attempted vehicle software update will be blocked to prevent loss of electrical power during the update sequence.

Affected models

Model S 2021+ Model X 2021+

Track your Tesla's alerts automatically

Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.