UI family
UI_a031_BrakeFluidLow
Not Available
What does the UI_a031_BrakeFluidLow alert mean?
Indicates that the sensor at the master cylinder has detected low brake fluid. Triggers red tell tale light on the cluster
What you'll see in your Tesla
- Not Available
What triggers it
VCFRONT reported VCFRONT_brakeFluidLevel != NORMAL on CAN message ETH_VCFRONT_sensors
When it clears
Brake fluid level back to normal
Potential impact
Potential danger of brakes not operating properly
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.