DIF family
DIF_a158_ibstMIA
Not Available
What does the DIF_a158_ibstMIA alert mean?
The drive interface (DI) electronic control unit (ECU) detects that the iBooster (IBST, or brake assist) controller area network (CAN) node is missing (MIA).
What you'll see in your Tesla
- Not Available
What triggers it
The DI ECU is not receiving the expected CAN communication from the IBST, and considers it irrational or MIA.
When it clears
The DI ECU receives the required CAN messages from the IBST.
Potential impact
The DI ECU is unable to monitor the state of the IBST.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
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.