Tesla APP_w009 Automatic Emergency Braking Unavailable Alert

The APP_w009 alert indicates that the Automatic Emergency Braking feature is unavailable for the remainder of the current drive. This alert is specific to the Automatic Emergency Braking system and does not necessarily imply that other braking functions or features are affected. This condition may be triggered by various factors, and other concurrent alerts may be present to indicate the specific cause of the system unavailability.

Sources

• Tesla_Vehicles_Troubleshooting_Alerts — p. 1, 2, 3, 4, 42