2021 Audi Virtual Cockpit Loud Turn Signal Sound TSB

Symptoms

Owners of specific 2021 Audi models equipped with the Virtual Cockpit may experience an issue where the turn signal's audible clicking sound becomes sporadically and unusually loud when active. This condition, often described as a loud 2021 Audi Q8 turn signal sound, refers specifically to the volume of the clicking sound, not a malfunction of the turn signal's lighting or function. The sound may vary in intensity and frequency, leading to a noticeable and potentially distracting increase in volume.

Fault Codes / DTCs

Audi Technical Service Bulletin PSS 90 (2068300/1) explicitly states that no relevant Diagnostic Trouble Codes (DTCs) are stored in the vehicle's system in connection with this unusually loud turn signal sound. This means that the issue will not trigger any dashboard warning lights, nor will it be detectable by standard diagnostic scans looking for fault codes. Technicians will not find any electronic records indicating a problem related to this specific symptom.

Technical Background

The root cause of the unusually loud turn signal sound, including the loud 2021 Audi Q8 turn signal sound, has been identified by Audi as a software-related issue. This indicates that the problem stems from the vehicle's internal programming or calibration within the Virtual Cockpit system, rather than a mechanical defect in the turn signal stalk or a fault in the speaker hardware. Because it is software-based, a software update is the anticipated permanent solution.

Important Warnings

Audi has issued critical guidance regarding this condition. Technicians are instructed not to replace any components for the unusually loud turn signal sound. Replacing parts will not resolve the customer's concern, as the issue is software-related. Owners should be aware that attempting hardware replacements will be ineffective and could lead to unnecessary costs or delays. This TSB emphasizes that no physical repair is currently available or recommended for this specific complaint.

Dealer Actions and Customer Communication

When a customer reports the unusually loud turn signal sound, dealers are advised to take specific steps. First, explain to the customer that a permanent software solution is expected to be available by the end of the second quarter of 2023, though this timeline is subject to change. Emphasize that no repairs are necessary at this point and that component replacement will not resolve the issue. Second, technicians must create a PSS (Pending Service Solutions) record. This record should be logged in the PSS application, accessible via the 'Pending Service Solutions (PSS)' link in AccessAudi (under Related Links >> Service) or through the Technical Assistance page in Elsa. This process helps Audi track the prevalence of the issue and ensures customers are properly informed about the upcoming fix.

Temporary Workaround

For owners experiencing the loud 2021 Audi Q8 turn signal sound, a simple temporary workaround is available. Cycling the ignition off and then back on should temporarily resolve the complaint. This suggests that a brief power cycle can reset the system and alleviate the symptom until a permanent software update is released.

Warranty Information

Audi Technical Service Bulletin PSS 90 (2068300/1) is categorized as informational only and is not applicable to any standard Audi warranty claims at this time. Since the permanent software solution is still under development, there is no specific repair procedure outlined in this TSB that would be covered by warranty. Once the official software update is released, its warranty applicability will be detailed in subsequent communications.

Additional Information for Service Personnel

Audi reminds service personnel that all part and service references, including the TSB number 2068300, are subject to change and/or removal. It is crucial to always check with the Parts Department and/or ETKA (Electronic Parts Catalog) for the latest information and parts bulletins. Furthermore, for any related work, technicians should consult the Repair Manual for details on fasteners, bolts, nuts, and screws that may require replacement during a repair, ensuring proper vehicle reassembly and safety standards.

NHTSA Source Citation

NHTSA ID: 10225532