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Service bulletins for the 2021 Audi TT

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.

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

By type

By component

By trouble code

Bulletins, newest first
AOS-26-252026-06-04. Service bulletin. UNKNOWN OR OTHER. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: The ODIS Audi Brand update 2.41.1 is setting a ODS5003E error code when you perform the 90TV SVM flash.
TSB_2081722_12026-05-05. Service bulletin. UNKNOWN OR OTHER. This bulletin is informational and contains information on the various warning lamps that may appear.
TSB_2080517_32026-05-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
TSB_2070568_62026-05-05. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
TSB_2022032_122026-05-05. Service bulletin. UNKNOWN OR OTHER. This bulletin provides diagnostic information for the vehicle locking system.
TSB_2081531_12026-04-07. Service bulletin. UNKNOWN OR OTHER. This Reporting obligation requests that technicians contact the Technical Assistance Center (TAC) when the diagnostic tester refers to this reportin gobligation or to TPI 2033392.
TSB_2081409_12026-04-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton regarding the Universal Traffic Recorder.
TSB_2081405_12026-04-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiotn about various infortainment system complaints.
TSB_2081200_12026-04-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaito when Apple CarPlay/Android Auto does not react to touch inputs.
TSB_2051095_112026-04-07. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information about where to download the Audi frequency app.
TSB_2024323_132026-04-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the parking assistance gives false warnings.
TSB_2024323_122026-04-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the parking assistance gives false warnings.
TSB_2023187_82026-04-07. Service bulletin. SUSPENSION. This bulletin provides informaiotn regarding squeaking noises when steering or maneuvering.
DC_Audi_CF_ Airbag2026-04-07. Other. AIR BAGS. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent warning regarding counterfeit replacement airbag inflators that are being installed in used vehicles.
TSB_2080517_22026-03-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
TSB_2059335_62026-03-03. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when there are noises from the area around the instrument cluster.
TSB_2052680_42026-03-03. Service bulletin. UNKNOWN OR OTHER. This Reporting Obligation requires technicains to contact the Technical Assistance Center (TAC) in cases where the airbag/seatbelt is deployed/not deployed; general accident information; and fire and overheat damage.
TSB_2051095_102026-03-03. Service bulletin. ENGINE. This bulletin provides information on the use of the Audi frequencly analysis app, and where the application can be downloaded.
TSB_2021205_102026-03-03. Service bulletin. ENGINE. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
TSB_2061028_92026-02-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are no services in the MMI and the SOS LED does not turn green after PDI.
TSB_2080681_12026-02-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information regarding contact checks for event memories, intermittent.
TSB_2067716_32026-02-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides information when the air conditioner is not working, or has a restricted function; leak at the O-ring.
TSB_2074846_42026-02-06. Service bulletin. STEERING. This bulletin provides information about vibrations and rotational steering vibrations.
TSB_2074764_22026-02-06. Service bulletin. POWER TRAIN. This bulletin provides information when there are whining noises during deceleration in overrun between 70-50 mph.
TSB_2069416_22026-02-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for when the 12V socket and/or the cigarette lighter are not working.

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