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Service bulletin A901908 20541971

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10155408
Published by NHTSA2019-04-01
Manufacturer's numberA901908 20541971
Manufacturer's date2019-03-05
NHTSA componentEQUIPMENT; LANE DEPARTURE

NHTSA's summary

This bulletin contains repair instructions for when the driver assist systems temporarily stop working with DTC C12D5FA.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Equipment and accessories

Trouble codes named

C12D5

Vehicles listed
AUDI A62019
AUDI A72019
AUDI A82019
AUDI Q82019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V1250002026-03-04. LANE DEPARTURE:SOFTWARE
25V9000002025-12-19. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SM 13-20262026-04-07. Other. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
AWA 24-042024-06-25. Warranty extension. Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction of the AEB system’s control unit, camera(s), LIDAR, and/or sensor(s) which enable automatic emergency braking functionality.
AWA 24-042024-06-25. Warranty extension. Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction of the AEB system’s control unit, camera(s), LIDAR, and/or sensor(s) which enable automatic emergency braking functionality.
A9124992073629_12024-05-07. Service bulletin. This bulletin provides information when the Apple CarPlay connection is dropped repeatedly in short intervals.
A9124022062466_52024-05-06. Service bulletin. This bulletin provides information when Apple CarPlay cannot be started using the Wi-Fi connection (Wireless Carplay).
Audi-A7-S72024-04-22. Service bulletin. Audi Delivery Guidelines.
A7-S7-A2024-04-22. Service bulletin. Audi Delivery Guidelines.
A7-S72024-04-22. Service bulletin. Audi Delivery Guidelines.
A6-S6-A2024-04-22. Service bulletin. Audi Delivery Guidelines.
A6-S62024-04-22. Service bulletin. Audi Delivery Guidelines.