UI family
UI_a039_AudioA2bNeedRediscovery
Not Available
What does the UI_a039_AudioA2bNeedRediscovery alert mean?
A condition was detected on the audio A2B primary node and now requires a new device discovery over the A2B bus, which may lead to a temporary interruption of audio. This alert only sets if the vehicle is not in sleep.
What you'll see in your Tesla
- Not Available
What triggers it
The audio A2B primary node requires a new device discovery.
When it clears
The audio A2B primary node completes a new device discovery.
Potential impact
There may be a temporary interruption of audio.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Semitruck
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.