VCSEC family
VCSEC_a134_noVINLoaded
Drive not authorized
What does the VCSEC_a134_noVINLoaded alert mean?
There is no VIN loaded on the security controller
What you'll see in your Tesla
- Drive not authorized
- Phone key and keyfob unavailable - Try key card
What triggers it
There is no VIN loaded on the security controller
When it clears
VIN is loaded on the security controller
Potential impact
Most commands will be rejected, and features like remote unlock, remote start, or key pairing, will not function.
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.