TESLA Warning

GTW-W153

GTW_w153_externalRtcAlarmFailure

Also written as GTW_W153 / GTW W153 / GTW_w153_externalRtcAlarmFailure / gtw_w153_externalrtcalarmfailure

System
GTW
Gateway
Type
Warning
Category
Network
Severity
Warning

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-W153 mean?

Tesla warning code in the Gateway (GTW) module. Failed to use external RTC as wake source. Will try internal RTC RCM is running different version than the expected

Original Description

Failed to use external RTC as wake source. Will try internal RTC RCM is running different version than the expected

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Gateway alert: Failed to use external RTC as wake source. Will try internal RTC RCM is running different version than the expected
  • One or more features may temporarily be unavailable
  • Usually resolves after a reboot

How to Diagnose and Resolve

  1. 1 Perform a soft reboot (hold both scroll wheels)
  2. 2 Check for pending OTA software updates
  3. 3 Schedule service if the alert recurs frequently

Severity Notes

GTW-W153 is a Warning in the Gateway system. Schedule service soon. Monitor your vehicle for additional warnings.

Other GTW Codes

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