MyTeslaMate
VCLEFT family

VCLEFT_a209_IBSMIA

Not Available

What does the VCLEFT_a209_IBSMIA alert mean?

One or more of the serial peripheral interface (SPI) messages the vehicle controller receives periodically from the Intelligent Battery Sensor (IBS) is not received, indicating the IBS may be unavailable (MIA).

What you'll see in your Tesla

  • Not Available

What triggers it

The vehicle controller does not receive one or more of the expected SPI messages from the IBS within the expected time frame.

When it clears

The vehicle controller starts receiving the expected SPI messages from the IBS.

Potential impact

The vehicle may not sleep, and the low voltage (LV) battery may be overcharged or undercharged.

Affected models

Cybertruck

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.