2022-2023 Audi Driver Assist System Inop TSB 2066181/1

Important Warning for Owners

Audi Technical Service Bulletin 2066181/1, issued on February 18, 2022, provides crucial guidance regarding the sporadic inoperability of driver assist systems in certain 2022-2023 Audi models. The bulletin explicitly states: "No repair is available at this time." Furthermore, it advises: "Do not perform any repairs. Any repairs for this concern may be denied." Owners are also instructed that "this condition is normal." This means that if your vehicle exhibits these symptoms, you should not seek repairs, as Audi considers this an expected operational characteristic and will not cover any related service under warranty. This information is vital to prevent unnecessary diagnostic fees or replacement part costs.

Symptoms of Sporadic Driver Assist System Inoperability

Owners of affected 2022-2023 Audi A3, S3, and RS3 vehicles may notice that their driver assist systems become sporadically unavailable. This temporary condition is often accompanied by specific messages displayed in the instrument cluster. The "Audi driver assist inop" state means that features designed to aid in driving safety and convenience may not function as expected for a short period.

The verbatim messages that may appear include:

• "Adaptive Cruise Control not working"
• "Lane assist: currently unavailable. See owner's manual"
• "Audi pre sense: currently restricted. See owner's manual"
• "Audi pre sense not working"

Typically, these instrument cluster messages will disappear, and the driver assist systems will become operational again after a few moments or after cycling the ignition off and on.

Diagnostic Trouble Codes (DTCs)

When the "Audi driver assist inop" condition occurs, workshop findings indicate that specific Diagnostic Trouble Codes (DTCs) may be stored sporadically in the front camera for driver assist systems, identified as R242 (address word 00A5). These codes point to internal issues within the system's image processing unit.

The DTCs associated with this condition are:

Code	Description	Symptom Code
B200FF0	Internal malfunction	1124116
B2F0100	Development code 1	1124198

These codes confirm that the vehicle's diagnostic system has registered an event related to the temporary unavailability of the driver assist functions.

Technical Background

The underlying cause for the sporadic "Audi driver assist inop" condition is attributed to highly sporadic system resets of the image processing unit. This unit is a critical component responsible for processing visual data from the R242 front camera, which feeds information to various driver assist systems. When these resets occur, the image processing unit may cause the driver assist systems to intermittently become inoperable for a short period of time. Audi has determined that this behavior is part of the system's normal operation.

What Owners Should Do

If you own a 2022-2023 Audi A3, S3, or RS3 and experience the sporadic unavailability of your driver assist systems, accompanied by the messages and DTCs described in Audi TSB 2066181/1, there is no action required. Audi explicitly states that this condition is normal and no repair is available or necessary. Attempting to have these systems repaired may result in denied warranty claims, as the manufacturer does not consider this a fault requiring intervention. Simply allow the system to reset itself, or cycle the ignition if needed, and the driver assist functions should resume normal operation.

---

Source: NHTSA ID: 10208259