2022 Audi e-tron GT HUD Fault: Humming Noise & No Display

Audi has issued Technical Service Bulletin (TSB) 2064988/1 to address a head-up display (HUD) fault affecting certain 2022 Audi e-tron GT and RS e-tron GT vehicles. This bulletin, dated November 22, 2021, describes a condition where the HUD may not function correctly, often accompanied by an audible humming noise.

Symptoms of the 2022 Audi e-tron GT HUD Fault

Owners of affected vehicles may observe the following issues related to the head-up display:

• An audible humming noise emanating from the HUD for approximately four seconds after the ignition is turned on.
• The projected image on the windshield may either not be visible at all or appear in an incorrect location.

Workshop findings indicate that while the projected image might not be visible from the driver's perspective, it can often be seen when looking directly into the HUD from above.

Technical Background

The root cause of this 2022 Audi e-tron GT HUD fault is identified as a software bug within the head-up display system. Audi has since released updated software, version 0101, in current series production to correct this issue.

Repair Procedure Summary

To resolve the HUD fault, technicians are instructed to perform a software update on the HUD control module, identified as J898 (address word 0082). The repair process involves several steps:

1. HUD Reset: The head-up display unit must first be reset. This is achieved by removing and then replacing fuse S04 for approximately five minutes.
2. SVM Operating Instructions: Technicians must follow the detailed instructions provided in TSB 2011732, titled "00 Software Version Management (SVM), operating instructions," which outlines the general procedure for SVM updates.
3. Software Update: The HUD control unit (J898) is then updated using the SVM action code 82A003. The update replaces older software versions, such as 0037 (associated with part numbers 4J3919617 and 4J3919618), with the new software version 0101.

Warranty Information

This repair, outlined in TSB 2064988/1, is generally covered under Audi's new vehicle limited warranty for up to 48 months or 50,000 miles, whichever comes first. Certified Pre-Owned (CPO) vehicles may also be covered under claim type G10, subject to owner verification. For vehicles outside of warranty coverage, this Technical Service Bulletin serves as informational guidance only.

Relevant warranty claim details include:

• Service Number: 9091
• Damage Code: 0040
• Labor Operations: Software Update (0151 0000, max 100 Time Units) and Repair control module for the head-up display (9091 4199, 20 Time Units).
• Claim Comment: As per TSB #2064963/1 (a related or superseded bulletin).

Important Information for Owners

If your 2022 Audi e-tron GT is experiencing a head-up display fault and is no longer under warranty, the information in this TSB is provided for your awareness. While the software update is the recommended fix, any associated costs would typically be the owner's responsibility. It is always advisable to discuss warranty coverage with your Audi dealer.

Next Steps for Owners

If your 2022 Audi e-tron GT or RS e-tron GT exhibits the described head-up display symptoms, such as a humming noise or an inoperative display, it is recommended to contact an authorized Audi dealership. They can confirm if your vehicle is covered by TSB 2064988/1 and perform the necessary software update to resolve the 2022 Audi e-tron GT HUD fault.

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Source: NHTSA ID: 10203691