MCU-W034
MCU_w034_apeFusesEtc
Also written as MCU_W034 / MCU W034 / MCU_w034_apeFusesEtc / mcu_w034_apefusesetc
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-W034 mean?
Tesla warning code in the Media Control Unit (MCU) module. This alert indicates that an incompletely fused driver's assistance (DAS) electronic control unit (ECU) is installed in the car. Factory-gated cars must have a fully-fused DAS ECU installed. Note: Do not replace hardware for this alert unless you have confirmed via escalation.
Original Description
This alert indicates that an incompletely fused driver's assistance (DAS) electronic control unit (ECU) is installed in the car. Factory-gated cars must have a fully-fused DAS ECU installed. Note: Do not replace hardware for this alert unless you have confirmed via escalation.
Affected Tesla Models
What You May Notice
- Media Control Unit alert: This alert indicates that an incompletely fused driver's assistance (DAS) electronic control unit (ECU) is installed in
- 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 Perform a soft reboot (hold both scroll wheels for ~10 seconds)
- 2 Check for pending OTA software updates
- 3 If the issue persists, schedule a service appointment
Severity Notes
MCU-W034 is a Warning in the Media Control Unit system. Schedule service soon. Monitor your vehicle for additional warnings.