APS family
APS_w288_brakeboosterMia
Not Available
What does the APS_w288_brakeboosterMia alert mean?
Autopilot Processor Secondary (APS) has not received one or more Controller Area Network (CAN) messages from Brake Booster (BB) on Party Bus.
What you'll see in your Tesla
- Not Available
What triggers it
APS does not receive one or more CAN messages from Brake Booster (BB) on Party Bus.
When it clears
APS starts receiving all CAN messages from Brake Booster (BB).
Potential impact
Some Autopilot features like Traffic Aware Cruise Control will be impacted.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
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.