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Service bulletins for the 2021 Audi TTS

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.

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

By type

By component

By trouble code

Bulletins, newest first
TSB_2060750_52026-02-06. Service bulletin. ENGINE. This bulletin provides information regarding UV leak additive for finding oil leaks.
TSB_2056019_52026-02-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the anti-theft alarm activates for no reason, or does not activate.
TSB_2080517_12026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
TSB_2061669_32026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service infrmation for workshop mode with Audi connect vehicles.
TSB_2077148_22026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaotin when the home address, work address, and favorites are deleted invehicles with MIB3.
TSB_2021205_92026-01-07. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
TSB_2077443_22026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informatin when the convenience opening does not work.
TSB_2079652_22026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the Emergency call LED in the roof module is not lit up green.
TSB_2074808_32026-01-07. Service bulletin. POWER TRAIN. This bulletin provides additoinal information to assist in determining the energy content of lithium-ion high-voltage batteries.
TSB_2074640_22026-01-07. Service bulletin. ENGINE. This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
TSB_2028220_132026-01-07. Service bulletin. STEERING. This bulletin provides regarding visual damage for all vehicles.
TSB_2061397_22026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information about voice recognition performance, and bluetooth call quality issues on the other end of the line.
TSB_2018187_182026-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are speaker rattles, vibrations, or audio interference.
TSB_2079920_12025-12-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin povides ifnrmation when the image and sound cuts out, connection failures with iPhone 8/X/XR.
TSB_2069904_22025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information for all models regarding brake sounds.
TSB_2065978_62025-11-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the steering wheel does not heat up sufficiently.
TSB_2079732_12025-11-08. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when tehre is a paint issue on alloy wheels.
TSB_2079696_12025-11-08. Service bulletin. WHEELS. This bulletin provides information when there are whining noises at high speeds.
TSB_2075120_22025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information regarding the general approach for all Audi vehicles regarding brake vibrations.
TSB_2074846_32025-11-08. Service bulletin. STEERING. This TSB provides information regarding rotational and other steerihng wheel vibrations.
TSB_2074843_22025-11-08. Service bulletin. WHEELS. This bulletin provides information when there is a wheel/tire imbalance.
TSB_2072304_32025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information when there is an ABS/ESC speed sensor implausible signal.
TSB_2069078_32025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
TSB_2067132_32025-11-08. Service bulletin. SERVICE BRAKES. This bulletin provides information when there is corrosion on the friction survace of steel brake discs.
TSB_2065160_32025-11-08. Service bulletin. WHEELS. This bulletin provides informaiont when the collapsible spare wheel does not fully inflate using the compressor from the vehicle's tool kit.

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