TESLA Warning

MCU-W027

MCU_w027_dtcActive

Also written as MCU_W027 / MCU W027 / MCU_w027_dtcActive / mcu_w027_dtcactive

System
MCU
Media Control Unit
Type
Warning
Category
Network
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 MCU-W027 mean?

Tesla warning code in the Media Control Unit (MCU) module. This is a generic customer facing DTC alert that indicates that a DTC is set.

Original Description

This is a generic customer facing DTC alert that indicates that a DTC is set.

Affected Tesla Models

Model SModel XModel 3Model Y

What You May Notice

  • Media Control Unit alert: This is a generic customer facing DTC alert that indicates that a DTC is set.
  • Touchscreen may show an error for one or more apps or settings
  • Feature may restore itself after a reboot

How to Diagnose and Resolve

  1. 1 Perform a soft reboot (hold both scroll wheels for ~10 seconds)
  2. 2 Check for pending OTA software updates
  3. 3 If the issue persists, schedule a service appointment

Severity Notes

MCU-W027 is a Warning in the Media Control Unit system. Schedule service soon. Monitor your vehicle for additional warnings.

Other MCU Codes

MCU_u001 Tesla unknown code in the Media Control Unit (MCU) module. T... MCU_u002 Tesla unknown code in the Media Control Unit (MCU) module. T... MCU_u003 Tesla unknown code in the Media Control Unit (MCU) module. T... MCU_u004 MCU_u005 Tesla unknown code in the Media Control Unit (MCU) module. T... MCU_u006 Tesla unknown code in the Media Control Unit (MCU) module. T... MCU_u007 Tesla unknown code in the Media Control Unit (MCU) module. T... MCU_u008 Tesla unknown code in the Media Control Unit (MCU) module. T...
View all MCU codes →