APP family
APP_w229_alcUltrasoundDamaged
Not Available
What does the APP_w229_alcUltrasoundDamaged alert mean?
Auto lane change (ALC) is unavailable due to Autopilot electronic control unit (ECU) detecting damage to ultrasonic sensors.
What you'll see in your Tesla
- Not Available
What triggers it
Autopilot ECU detects damage to one or more ultrasonic sensors while ALC is initiated.
When it clears
Autopilot ECU no longer detects any damage to ultrasonic sensors.
Potential impact
Auto lane change (ALC) feature is unavailable.
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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