Tesla DI_a175 — Motor Fault Reduced Power Mode

Drive Inverter (DI) alert — plain English explanation and what to do next

System

Drive Inverter (DI)

Severity

High Severity

Dealer visit

Schedule immediately

Affects models

Model S, X, 3

What DI_a175 means

DI_a175 indicates Tesla drive motor or inverter has detected a fault and vehicle entered reduced power mode. You can likely still drive but performance is significantly reduced. Do not ignore.

What to do

⚠️ Do not ignore this code. Avoid highway speeds and schedule service immediately.

Reduce speed and drive carefully — Avoid aggressive acceleration or highway speeds until inspected.

Try a full reboot — Park safely perform full reboot. Sometimes clears temporary motor controller glitch.

Schedule immediate service — If alert persists after reboot contact Tesla Service right away.

Note unusual sounds — Describe any vibrations sounds or handling changes to the Tesla technician.

Related Tesla error codes

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