TESLA Warning
GTW-W277
GTW_w277_iBoosterReduced
Also written as GTW_W277 / GTW W277 / GTW_w277_iBoosterReduced / gtw_w277_iboosterreduced
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-W277 mean?
Tesla warning code in the Gateway (GTW) module. The Gateway has detected that the iBooster functionality has been reduced. If this alert is present, the power brake assist will be reduced.
Original Description
The Gateway has detected that the iBooster functionality has been reduced. If this alert is present, the power brake assist will be reduced.
Affected Tesla Models
Model SModel XModel 3Model YCybertruck
What You May Notice
- Gateway alert: The Gateway has detected that the iBooster functionality has been reduced. If this alert is present, the power brake ass
- 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-W277 is a Warning in the Gateway system. Schedule service soon. Monitor your vehicle for additional warnings.
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