UI-A048
UI_a048_AudioPremiumAmpCheckFailed
Also written as UI_A048 / UI A048 / UI_a048_AudioPremiumAmpCheckFailed / ui_a048_audiopremiumampcheckfailed
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-A048 mean?
Tesla alert code in the User Interface (UI) module. Power failure of the audio premium amp detected as it failed to report on I2C External power amp chips are polled every few seconds (10 seconds default) to confirm that they are still responding. A potential amplifier power failures will cause the I2C transfer to fail Loss of audio premium amp functionality. Will trigger a new A2B discovery
Original Description
Power failure of the audio premium amp detected as it failed to report on I2C External power amp chips are polled every few seconds (10 seconds default) to confirm that they are still responding. A potential amplifier power failures will cause the I2C transfer to fail Loss of audio premium amp functionality. Will trigger a new A2B discovery
Affected Tesla Models
What You May Notice
- User Interface alert: Power failure of the audio premium amp detected as it failed to report on I2C External power amp chips are polled every
- 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-A048 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.