RCM family
RCM_a004_internalFault
Safety restraint system issue
What does the RCM_a004_internalFault alert mean?
RCM_a004_internalFault
What you'll see in your Tesla
- Safety restraint system issue
- Service is required
What triggers it
The restraint control module has detected an internal fault.
When it clears
Cannot be cleared. The restraint control module needs to be replaced.
Potential impact
The restraint system may not function as designed.
Affected models
Model 3 2017-2023
Model Y
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.