RCM family
RCM_a021_pretenLapFrontLeft
Front left safety restraint system issue
What does the RCM_a021_pretenLapFrontLeft alert mean?
RCM_a021_pretenLapFrontLeft
What you'll see in your Tesla
- Front left safety restraint system issue
- Service is required
What triggers it
There is a fault with the front-left lap pretensioner.
When it clears
The fault is rectified.
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.