TRCM family
TRCM_a139_disarmed
Safety restraint system issue
What does the TRCM_a139_disarmed alert mean?
RCM is disarmed
What you'll see in your Tesla
- Safety restraint system issue
- Service is required
What triggers it
The restraint control module is not armed.
When it clears
The restraint control module arming routine was run successfully.
Potential impact
The Safety Restraint System may not perform as designed.
Affected models
Model 3 2017-2023
Model 3 2024+
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.