UI-A064
UI_a064_ModemFirmwareTestFailed
Also written as UI_A064 / UI A064 / UI_a064_ModemFirmwareTestFailed / ui_a064_modemfirmwaretestfailed
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 UI-A064 mean?
Tesla alert code in the User Interface (UI) module. Ecall alert. Modem firmware does not boot properly. Firmware image maybe corrupted Modem firmware does not boot properly. Firmware image maybe corrupted Ecall may be inoperative, as well as modem. Service relying on cellular connection may be affected
Original Description
Ecall alert. Modem firmware does not boot properly. Firmware image maybe corrupted Modem firmware does not boot properly. Firmware image maybe corrupted Ecall may be inoperative, as well as modem. Service relying on cellular connection may be affected
Affected Tesla Models
What You May Notice
- User Interface alert: Ecall alert. Modem firmware does not boot properly. Firmware image maybe corrupted Modem firmware does not boot properly
- 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
UI-A064 is an Alert in the User Interface system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.