2020-2022 Audi Multi-Function Steering Wheel Star Button Issue

Symptoms

Owners of certain 2020-2022 Audi models may experience an issue where the Audi star button function assignment on their multi-function steering wheel is lost sporadically. This means the customized function assigned to the star button, often used for quick access to navigation, radio presets, or phone contacts, may occasionally revert to a default setting or become unresponsive without warning. The Technical Service Bulletin (TSB) references this as the 'star button on the steering wheel (Figure 1)' which gets lost sporadically.

Fault Codes / DTCs

A crucial finding in Audi TSB 91 24 76 2073134/1 is that during workshop diagnosis, no relevant DTCs (Diagnostic Trouble Codes) are stored in the vehicle's control modules. This is important because the absence of fault codes confirms that the issue is not a typical electrical or component failure that would trigger a diagnostic code. Instead, it points towards a software-related anomaly rather than a hard fault that can be easily identified by a scanner.

Technical Background

Audi has determined that the sporadic loss of the Audi star button function is attributed to a software-related issue. The TSB, titled '91 PSS MIB3: Star button function assignment on the multi-function steering wheel is lost sporadically,' indicates that the problem is linked to the MIB3 infotainment system or related control units. This confirms that the issue is not a mechanical defect with the star button itself or other steering wheel hardware components.

Important Owner Information and Warnings

Audi has issued specific guidance regarding this issue to prevent unnecessary repairs. Owners are advised that "Do not replace any components for this condition since this will not resolve the customer's concern." This means that replacing the multi-function steering wheel or any associated control modules will not fix the sporadic loss of the Audi star button function. Such replacements would be ineffective and potentially costly if not covered by warranty. Furthermore, this Technical Service Bulletin 91 24 76 2073134/1 is classified as 'informational only' and is 'not applicable to any Audi Warranty' for the purpose of a repair claim. This implies that while Audi acknowledges the issue, a direct warranty claim for a repair under this TSB is not currently supported, as a repair solution is still pending.

Production Solution and Timeline

Audi is actively developing a permanent software solution for the Audi star button function issue. The Technical Service Bulletin states that a solution is currently under development and is expected to be available by the end of the fourth quarter of 2024. However, this timeline is subject to change. This bulletin will be updated once more information and the final solution are available.

What Your Dealer Will Do

If you are experiencing the sporadic loss of the Audi star button function, you should contact an authorized Audi dealership. According to TSB 91 24 76 2073134/1, your dealer will perform the following steps:

1. Customer Explanation: The service advisor will explain that a solution is anticipated by the end of Q4 2024 (subject to change) and that no repairs, including component replacement, are necessary at this time as they will not resolve the concern.
2. PSS Record Creation: The dealership will create a Pending Service Solutions (PSS) record in the PSS application. This is done through the 'Pending Service Solutions (PSS) link in AccessAudi (under Related Links >> Service)'. This record helps Audi track affected vehicles and ensures that your vehicle is noted for the eventual software update when it becomes available.

Owner Action

If your Audi is affected by the sporadic loss of the Audi star button function, the primary action is to visit your authorized Audi dealer. Even though a repair is not yet available, reporting the issue allows your dealer to document it by creating a PSS record. This ensures that your vehicle is on record for the future software update. Be sure to mention Audi Technical Service Bulletin 91 24 76 2073134/1 when you speak with your service advisor.

NHTSA Source Citation

This information is based on NHTSA Manufacturer Communication ID 10250809.