MyTeslaMate
GTW family

GTW_w039_RCMCALversionMismatch

Not Available

What does the GTW_w039_RCMCALversionMismatch alert mean?

The vehicle gateway (GTW) detects the Restraint Control Module Calibration (RCMCAL) electronic control unit (ECU) is running a firmware version that may not be compatible with the firmware installed on the rest of the vehicle.

What you'll see in your Tesla

  • Not Available

What triggers it

The GTW detects the RCMCAL ECU running a different firmware version than expected.

When it clears

The GTW no longer detects the RCMCAL ECU running a different firmware version than expected.

Potential impact

Tesla Supplementary Restraint System (TSRS) features depending on RCMCAL ECU functionality may be limited or unavailable.

Affected models

Cybertruck Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+

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.