RCM2 family
RCM2_a119_kneeABDrvrShort
Safety restraint system issue
What does the RCM2_a119_kneeABDrvrShort alert mean?
Driver Inflatible Kneebag - Resistance too Low
What you'll see in your Tesla
- Safety restraint system issue
- Service is required
What triggers it
There is a low resistance with the driver knee airbag.
When it clears
The low resistance is rectified.
Potential impact
The Driver Knee Airbag 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.