IBST family
IBST_a185_rightBusOff
Not Available
What does the IBST_a185_rightBusOff alert mean?
iBooster (IBST) has detected right Controller Area Network (CAN) bus communication interruption due to failure state detection.
What you'll see in your Tesla
- Not Available
What triggers it
CAN communication errors leading to 'BusOff' mode activation.
When it clears
Normal CAN bus communication restoration or manual intervention required for recovery.
Potential impact
Affects network connectivity between right CAN devices.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model Y
Model Y 2025+
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.