VCSEC family
VCSEC_a164_attrsWentMissingC
Use key card
What does the VCSEC_a164_attrsWentMissingC alert mean?
During a routine scan for services, the vehicle security controller (VCSEC) found the endpoint no longer had them
What you'll see in your Tesla
- Use key card
- Reset VCSEC to restore functionality
What triggers it
During a routine scan for services, the vehicle security controller (VCSEC) found the endpoint no longer had them
When it clears
When the Bluetooth endpoint is reset and services are added again
Potential impact
Phone may not connect to center endpoint
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.