IDB family
IDB_a061_RCUstatusChecksum
Not Available
What does the IDB_a061_RCUstatusChecksum alert mean?
Redundant Control Unit (RCU) status message RCU_status checksum is incorrect.
What you'll see in your Tesla
- Not Available
What triggers it
RCU_status is received with incorrect CRC for longer than 100 milliseconds.
When it clears
RCU_status Controller Area Network (CAN) message is received with correct Cyclic Redundancy Check (CRC) for 100 milliseconds.
Potential impact
There may be an issue with the transmitting Electronic Control Unit (ECU) or CAN bus.
Affected models
Model Y 2025+
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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.