TESLA Warning

EFUSE-W138

EFUSE_w138_vBatFusedSelfTestFail

Also written as EFUSE_W138 / EFUSE W138 / EFUSE_w138_vBatFusedSelfTestFail / efuse_w138_vbatfusedselftestfail

System
EFUSE
Electronic Fuse
Type
Warning
Category
Battery
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 EFUSE-W138 mean?

Tesla warning code in the Electronic Fuse (EFUSE) module. This alert is for data collection purposes only until hands-off driving is enabled.

Original Description

This alert is for data collection purposes only until hands-off driving is enabled.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

  • Electronic Fuse alert: This alert is for data collection purposes only until hands-off driving is enabled.
  • Related vehicle feature may be reduced or unavailable
  • Alert visible in the Tesla app: This alert is for data collection purposes only until hands-off driving is enabl

How to Diagnose and Resolve

  1. 1 Reboot the vehicle by holding both scroll wheels for 10 seconds
  2. 2 Check for pending OTA software updates in Controls > Software
  3. 3 If the alert persists, schedule a Tesla Service appointment
  4. 4 Describe the alert code and any symptoms when booking service

Severity Notes

EFUSE-W138 is a Warning in the Electronic Fuse system. Schedule service soon. Monitor your vehicle for additional warnings.

Other EFUSE Codes

EFUSE_w001 EFUSE_w010 Tesla warning code in the Electronic Fuse (EFUSE) module. Th... EFUSE_w012 Tesla warning code in the Electronic Fuse (EFUSE) module. Th... EFUSE_w013 EFUSE_w015 EFUSE_w021 EFUSE_w022 EFUSE_w041
View all EFUSE codes →