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Service bulletin Circular Service

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 id10150774
Published by NHTSA2018-12-10
Manufacturer's numberCircular Service
Manufacturer's date2018-08-06
NHTSA componentELECTRICAL SYSTEM; AIR BAGS

NHTSA's summary

Service Action - Airbag Control Module Software

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

Air bags, Electrical system

Vehicles listed
AUDI A4 ALLROAD2017, 2018
AUDI A52018
AUDI A5 CABRIOLET2018
AUDI ALLROAD2017
AUDI Q72017, 2018
AUDI S5 CABRIOLET2018

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

Recalls for the same vehicles and component
20216882021-11-10. Airbag
21V8740002021-11-10. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER; SEATS
20193612019-07-24. Airbag
19V5470002019-07-24. AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE; AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION
18V8360002018-11-27. AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
17V8220002017-12-20. AIR BAGS:SIDE/WINDOW
20166622016-12-30. Airbag
16V9550002016-12-29. SEAT BELTS:PRETENSIONER; AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE; AIR BAGS:SIDE/WINDOW; AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE
16V6420002016-09-06. ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING
16V5190002016-07-08. AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE

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
TSB_2083183_12026-10-05. Service bulletin. This bulletin provides infomraiotn when there are noises from the surround loudspeaker.
TSB_2079214_42026-10-05. Service bulletin. This bulletin provides information regarding fault finding and repair information for electric tailgate.
TSB_2082977_12026-09-04. Service bulletin. This bulletin provides informaiton when the airbag warning lamp is active, event memory "B200000 - Faulty control module, symptom 305".
TSB_2073747_42026-08-05. Service bulletin. This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
TSB_2059335_72026-07-07. Service bulletin. This bulletin provides information when there are noises from the area around the instrument cluster.
TSB_2074729_32026-07-07. Service bulletin. This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
TSB_2080517_42026-06-04. Service bulletin. This bulletin provides informaiotn when the starter battery is discharged or defective.
TSB_2080517_32026-05-05. Service bulletin. This bulletin provides informaiotn when the starter battery is discharged or defective.
TSB_2081409_12026-04-07. Service bulletin. This bulletin provides informaiton regarding the Universal Traffic Recorder.
TSB_2081405_12026-04-07. Service bulletin. This bulletin provides informaiotn about various infortainment system complaints.