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Service bulletins for the 2020 Audi A6

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.

1382 on file from NHTSA, as of 2026-10-19.

About B122D on the 2020 Audi A6: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: B122D are shown. Show all

Bulletins, newest first
A5724712055932_102025-01-07. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when there is central locking/parking brake warning, and alarm or exterior mirror issues; DTCs B122D29, B14FF29 or U122800 stored.
A5724312063236_52024-03-06. Service bulletin. UNKNOWN OR OTHER; LATCHES/LOCKS/LINKAGES:DOORS:LOCK. This bulletin provides information when the front or rear door lock is not locking, is without function, and/or fault messages in DIS, DTC(s) B122D29, B14FF29 or B122B13.
A5723092063236_42023-07-10. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This bulletin provides information on the electronic lock (e-lock) and instructions for when the front and/or rear doors cannot be opened, fault messages are in the driver information system such as exit warning, central locking, or child safety lock warnings, and one or more DTC is stored B122D26, B122B13, B14FF29 in the control module for any of the four doors.
A5723062055932_92023-06-06. Service bulletin. PARKING BRAKE; VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. This bulletin provides information for when the central locking/parking brake warning, or alarm sounds, or if there are exterior mirror issues. DTCs B122D29, U122800, and/or B14FF29 may be stored.
A5721782055932_82021-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; PARKING BRAKE. This bulletin contains a software update for DTC B122D29 or U122800 or to follow the Campaign.
A5721732055932_72021-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update for DTC B122D29 or U122800.
A5721722055932_62021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains a software update for DTC B122D29 or U122800 and a potential part replacement.
A5720682055932_52020-07-07. Service bulletin. EQUIPMENT. This bulletin contains a software update for DTC B122D29 or U122800 and a potential part replacement.
A5719622055932_42020-01-08. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; PARKING BRAKE; EQUIPMENT. This bulletin contains a software update for DTC B122D29 or U122800 and a potential part replacement.
A5719602055932_32019-11-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update for DTC B122D29 or U122800 and a potential part replacement.
A5719592055932_22019-10-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. This bulletin contains a software update for DTC B122D29 or U122800 and a potential part replacement.
A5719572055932_12019-09-09. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC B122D29 or U122800 .

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.