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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

Only bulletins with component: Driver assistance are shown. Show all

Bulletins, newest first
A9123062024323102024-01-04. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE. This bulletin provides information when the parking assistance provides false warnings.
A4523362072304_12024-01-04. Service bulletin. UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ELECTRICAL SYSTEM:ADAS:HILL DESCENT ASSIST:SENSOR. This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal.
A9123052068573_22023-07-10. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. This bulletin provides information for when the parking aid sensor bracket(s) separate from the rear bumper.
A9023182065960_22023-04-06. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. This bulletin provides information for when the virtual cockpit is distorted due a broken screen caused by outside influence.
A9123632060523_22023-02-07. Service bulletin. BACK OVER PREVENTION:SOFTWARE. This bulletin describes the steps to update the MIB3 software when applicable.
21TechRefGde5262021-06-03. Service bulletin. BACK OVER PREVENTION; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). All models except Q3, R8, and TT: Settings Section: Split Verify and set language & measurements checklist items into 2 separate with instructions. Changed instructions for "Set Entertainment Fad in Parking aid", " Set Music volune while parking to Medium", and "Turn off Manual Seed Warning". Media/Radio/Sat Section: Changed instructions for "Verify HD Radio is turned "off". On-Hoist Inspection Section: Changed where to store tire pressures for Set and store tirepressures" to "Home > Vehicle > Settings & Service > Tire pressure monitoring". Audi connect Section: Changed instructions for "Turn on the Wi-Fi hotspot", Check Wi-Fi hotspot visibility", and Enable satellite map view for navigation"
A9121042024323_82021-06-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
A9120142060675_12020-10-06. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; EQUIPMENT:ELECTRICAL. This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'.

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