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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
TSB_2074436_22025-09-04. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the horn sound quality is poor.
TSB_2070568_52025-09-04. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
TSB_2078652_12025-09-04. Service bulletin. STRUCTURE:BODY. This TSB provides service information regarding noises from the sliding sunroof.
TSB_2061028_82025-09-04. 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_2060750_42025-09-04. Service bulletin. UNKNOWN OR OTHER. This bulleitn provides information regarding UV Leak additive for finding oil leaks.
AOS-25-472025-09-04. 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: The hotfix is to correct the issue: Issue seen: ODS5003E Infrastructure Guided Fault Finding: An internal fatal error occurred during the G929 - Vehicle Interior Carbon Dioxide Concentration Sensor function test plan. NOTE: This ODS error could show up on any other GFF function test plans as well.
TSB_2078728_12025-08-05. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when a customer reports that poor voice quality via bluetooth with iOS 18.0.x - 18.4.x.
TSB_2075217_32025-08-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the display of guages is faulty in Audi virtual cockpit.
TSB_2070568_42025-08-05. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
TSB_2070020_62025-08-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the Audi virtual cockpit display has semi-circular marks on edges of the display.
TSB_2061028_72025-08-05. 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_2060560_42025-08-05. Service bulletin. POWER TRAIN. This bulletin providesi nformation when various DTCs are stored; high maximum temperature recorded for clutch K1.
TSB_2027368_72025-08-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when the Audi advanced key is inoperative; door handle touch sensors.
TSB_2010353_62025-08-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides informatin when the cigarette lighter element does not eject, or the cigarette lighter is inoperable.
TSB_2042920_22025-07-08. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information when there is corrosion on the exhaust tail pipes.
TSB_2074855_32025-07-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the calendar function is not available.
TSB_2069331_52025-07-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when thre is a warning in the instrument cluster: "Instrument cluster: fault. Limited warning messages. Please contact workshop"; B200096.
TSB_2073867_22025-06-03. Service bulletin. ENGINE. This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM.
TSB_2065960_52025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the display of the Audi virtual cockpit is distorted due to a broken screen.
TSB_2059891_92025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the restricted function icon for Audi pre sense is displayed after engine starts.
TSB_2056019_42025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the anti-theft alarm activates for no reason, or when the anti-theft alarm does not activate.
SM 04-2025 VWGoA2025-06-03. Other. SERVICE BRAKES. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
TSB_2077320_22025-05-03. Service bulletin. UNKNOWN OR OTHER. This TSB is a label placement guide as required by CARB for remanufactured parts.
TSB_2031473_62025-05-03. Service bulletin. STRUCTURE:BODY. This service information TSB describes a cosmetic issue after using a car wash.
TSB_2073582_22025-05-03. Service bulletin. UNKNOWN OR OTHER. Apple CarPlay: general troubleshooting for connection complaints.

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