UI family
UI_a121_nvmeSmartLogCritical
Not Available
What does the UI_a121_nvmeSmartLogCritical alert mean?
Critical warning bits are set in the NVMe smart log
What you'll see in your Tesla
- Not Available
What triggers it
Critical warning bits are turned on in the smart log
When it clears
Critical warning bits are turned off in the smart log
Potential impact
NVMe subsystem reliability might be affected
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.