RCM2 family
RCM2_a854_ConfigParametersNotLearned
Safety restraint system issue
What does the RCM2_a854_ConfigParametersNotLearned alert mean?
Beginning-of-line device configuration not complete
What you'll see in your Tesla
- Safety restraint system issue
- Service is required
What triggers it
The beginning-of-line device configuration has not been performed.
When it clears
The device configuration routine is successfully run.
Potential impact
The Safety Restraint System may not perform as designed.
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.