TESLA Warning

RADC-W040

RADC_w040_wheelSpeedsMIA

Also written as RADC_W040 / RADC W040 / RADC_w040_wheelSpeedsMIA / radc_w040_wheelspeedsmia

System
RADC
Radar Controller
Type
Warning
Category
ADAS
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 RADC-W040 mean?

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the DAS_wheelSpeeds message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) was not received by the radar. This alert is cleared when the message is received again.?

Original Description

This alert is set when the DAS_wheelSpeeds message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) was not received by the radar. This alert is cleared when the message is received again.?

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

  • Radar Controller alert: This alert is set when the DAS_wheelSpeeds message from the Driver's Assistance System (DAS) Electronic Control Unit (EC
  • Camera or radar sensing notification on the touchscreen
  • Autopilot or active safety feature greyed out

How to Diagnose and Resolve

  1. 1 Check cameras and sensors for obstructions
  2. 2 Reboot the vehicle
  3. 3 Update software via Controls > Software
  4. 4 Schedule service if issue persists

Severity Notes

RADC-W040 is a Warning in the Radar Controller system. Schedule service soon. Monitor your vehicle for additional warnings.

Other RADC Codes

View all RADC codes →