GTW-W039
GTW_w039_RCMCALversionMismatch
Also written as GTW_W039 / GTW W039 / GTW_w039_RCMCALversionMismatch / gtw_w039_rcmcalversionmismatch
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does GTW-W039 mean?
Tesla warning code in the Gateway (GTW) module. RCMCAL is running different version than the expected RCMCAL may not function properly Failed to write an MDIO switch register SD Card boot sector is corrupted Gateway file system driver detects corruption in SD card boot sector CAN logs and firmware updates might not function Couldn't communicate with the SD Card. SD Card will be reinited
Original Description
RCMCAL is running different version than the expected RCMCAL may not function properly Failed to write an MDIO switch register SD Card boot sector is corrupted Gateway file system driver detects corruption in SD card boot sector CAN logs and firmware updates might not function Couldn't communicate with the SD Card. SD Card will be reinited
Affected Tesla Models
What You May Notice
- Gateway alert: RCMCAL is running different version than the expected RCMCAL may not function properly Failed to write an MDIO switch re
- One or more features may temporarily be unavailable
- Usually resolves after a reboot
How to Diagnose and Resolve
- 1 Perform a soft reboot (hold both scroll wheels)
- 2 Check for pending OTA software updates
- 3 Schedule service if the alert recurs frequently
Severity Notes
GTW-W039 is a Warning in the Gateway system. Schedule service soon. Monitor your vehicle for additional warnings.