EPBL family
EPBL_a174_csmReleaseFailed
Parking brake did not release
What does the EPBL_a174_csmReleaseFailed alert mean?
Electronic Parking Brake was unable to release due to fault.
What you'll see in your Tesla
- Parking brake did not release
- Driving may result in vehicle damage
What triggers it
Electronic Parking Brake faulted during release && (nonterminal == FALSE)
When it clears
Electronic Parking Brake attempts a new operation
Potential impact
Electronic Parking Brake release in progress will be stopped due to the fault, caliper may not have fully released
Affected models
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.