TESLA Warning

DI-W028

DI_w028_phaseArms

Also written as DI_W028 / DI W028 / DI_w028_phaseArms / di_w028_phasearms

System
DI
Drive Inverter
Type
Warning
Category
Motor
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 DI-W028 mean?

Tesla warning code in the Drive Inverter (DI) module. The motor controller has detected an expected root mean square (RMS) value of alternating current.

Original Description

The motor controller has detected an expected root mean square (RMS) value of alternating current.

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • drive inverter warning: The motor controller has detected an expected root mean square (RMS) value of alternating current.
  • Reduced acceleration or "Reduced Power" message on the touchscreen
  • Higher than normal energy consumption during driving

How to Diagnose and Resolve

  1. 1 Reboot the vehicle by holding both scroll wheels
  2. 2 Avoid aggressive acceleration until the alert clears
  3. 3 Schedule a Tesla Service appointment within the next few days
  4. 4 Check for available OTA updates in Controls > Software

Severity Notes

DI-W028 is a Warning in the Drive Inverter system. Schedule service soon. Monitor your vehicle for additional warnings.

Other DI Codes

DI_a001 DI_a002 Tesla alert code in the Drive Inverter (DI) module. Park but... DI_a010 DI_a012 DI_a013 DI_a015 DI_a016 DI_a017
View all DI codes →