TAS family
TAS_a021_TaskSchedulerError
Not Available
What does the TAS_a021_TaskSchedulerError alert mean?
If a task was not able to run at the appropriate time.
What you'll see in your Tesla
- Not Available
What triggers it
Task could not be scheduled because it was already running or pending.
When it clears
Next reboot, or after 5min of no scheduling errors.
Potential impact
Failure to run tasks on schedule.
Affected models
Cybertruck
Model 3 2024+
Model S 2012-2020
Model S 2021+
Model X 2015-2020
Model X 2021+
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.