2023-2024 Audi e-tron GT High-Voltage Battery Software Update

Audi has released a critical software update, identified as UPDATE 931D, designed to enhance the diagnostic capabilities for the high-voltage battery in certain 2023-2024 Audi e-tron GT and RS e-tron GT vehicles. This update aims to improve the detection and monitoring of potential irregularities within the high-voltage battery system. Owners experiencing an Audi e-tron GT battery warning should be aware of this important service action.

This software update is part of Audi's ongoing quality assurance process. It ensures that any potential issues with the high-voltage battery are promptly detected and communicated to the driver via a warning lamp in the instrument cluster. The repair became available on July 15, 2025.

Why This Matters

The high-voltage battery is a core component of electric vehicles like the Audi e-tron GT and RS e-tron GT. Ensuring its proper functioning and accurate diagnostics is crucial for vehicle performance, safety, and longevity. This software update provides more robust monitoring, helping to identify potential battery irregularities early. This proactive measure helps address an Audi e-tron GT battery warning before it escalates into a more significant issue.

What's Being Updated

The service action, referenced by the internal code 931D_DLR_LAUNCH, involves a software update for the high-voltage battery diagnostic system. This new software is designed to diagnose and monitor the battery more effectively. The update applies to a significant number of vehicles across the USA and Canada:

• USA: 2,039 E-TRON GT vehicles (2023-2024 model years) and 1,196 RS E-TRON GT vehicles (2023-2024 model years).
• Canada: 40 E-TRON GT vehicles (2024 model year) and 2 RS E-TRON GT vehicles (2024 model year).

In total, 3,277 vehicles are affected by this update.

Symptoms

The primary symptom that this software update aims to address is the illumination of a "warning lamp in the instrument cluster" indicating potential irregularities with the high-voltage battery. If you observe an Audi e-tron GT battery warning light on your dashboard, it signifies that the vehicle's diagnostic system has detected a condition that requires attention.

Important Warnings for Owners

Owners of affected 2023-2024 Audi e-tron GT and RS e-tron GT vehicles should be aware of the following critical information:

• No Owner Notification: "Updates differ from recalls and service actions; consumers are notified in writing of recalls and service actions. Therefore, consistent with general policy governing Updates, customers will not be receiving letters about this action." This means owners will not receive a direct letter from Audi regarding this software update. It is essential for owners to proactively check if their vehicle is affected.
• Dealer Inventory Embargo: "Affected vehicles in dealer inventory cannot be delivered to consumers until this Update is completed." This ensures that all new or certified pre-owned vehicles receive the necessary software update before being sold.
• Mandatory Update at Service: "Each vehicle coming into your workshop (for maintenance or any other service visit) that shows this Update code open in ELSA on the day of repair should have the work completed." This means that if your vehicle is brought to an authorized Audi workshop for any service, the dealer is required to perform the UPDATE 931D if it is still outstanding for your VIN.

Repair Procedure Summary

The repair for the Audi e-tron GT battery warning involves a software update performed by an authorized Audi dealer. Dealers are instructed to consult ELSA and Service References in Elsa2Go for complete repair and claiming instructions. The process includes:

1. Vehicle Identification: Dealers must verify if a VIN qualifies for the repair under this action using the Campaigns/Actions screen in ELSA. For inventory vehicles, dealers can use the "New and CPO Inventory Open Campaign/Action Listing" report from the OMD Web system.
2. Software Installation: The diagnostic software for the high-voltage battery will be updated.
3. Material Requirements: Dealers should refer to an UPDATE technical bulletin for any required materials.

This update is a standard software installation and is expected to be completed during a regular service visit.

Owner Action

If you own a 2023-2024 Audi e-tron GT or RS e-tron GT, and especially if you've noticed an Audi e-tron GT battery warning light, you should contact your authorized Audi dealer. Since Audi is not sending out direct notifications for this update, it is up to the owner to ensure their vehicle receives the necessary software. When you bring your vehicle in for maintenance or any other service, the dealer will check for outstanding updates, including UPDATE 931D, and perform the work as required.

NHTSA ID: 11021433