2024 Audi Q8 Yellow Battery Warning Lamp P0A1F00 TSB

Owners of certain 2024 Audi models, including the Audi Q8, may encounter a yellow battery warning lamp in their instrument cluster accompanied by the message "Electrical system: malfunction! Please contact Service". This condition is addressed by Audi Technical Service Bulletin (TSB) 2076606/1, which identifies it as a known software-related issue.

This TSB, titled "90 PSS Yellow Battery Warning Lamp + P0A1F00," was issued on January 15, 2025. It provides guidance for technicians and informs owners about the nature of this particular fault, specifically concerning the Audi Q8 P0A1F00 diagnostic trouble code.

Symptoms

If your vehicle is affected, you will typically observe the following:

• A yellow warning lamp illuminated in the instrument cluster.
• A message displayed on the instrument cluster stating: "Electrical system: malfunction! Please contact Service".

Audi notes that this warning lamp may temporarily disappear after switching the ignition off and on again, but it can reappear.

Fault Codes / DTCs

When diagnosed, the Data Bus On Board Diagnostic Interface (J533, address word 0019) will store the following Diagnostic Trouble Code (DTC):

Code	Description
P0A1F00	Battery Energy Control Module Malfunction

This specific DTC, Audi Q8 P0A1F00, points to an issue within the battery management system.

Technical Background

According to Audi, the root cause of this condition is a software issue, specifically identified with software version SW3039. This indicates that the problem is not due to a faulty hardware component but rather an error in the vehicle's control logic for the 12V battery system.

Important Warnings for Owners

Audi has provided a critical directive regarding this issue:

• "Do not replace any components for this condition since this will not resolve the customer's concern."

This means that attempting to replace parts like the battery or other electrical components will not fix the underlying software problem and should be avoided. A production change to address this issue is scheduled for Q3/2025.

Repair Procedure Summary

As of the issuance of TSB 2076606/1, no immediate repair is necessary or available. Audi anticipates a solution to be released by the end of the first quarter of 2025. Technicians are instructed to inform customers about this upcoming solution and to create a Pending Service Solutions (PSS) record in the PSS application via AccessAudi. This record helps Audi track affected vehicles and ensures customers are notified once the permanent fix is available.

Warranty Information

For warranty claims related to TSB 2076606/1, the following codes are applicable:

• Service Number: 9035
• Damage Code: 0039
• Labor Operations: GFF / Guided Functions (0150 0060 and 0150 0010)
• Claim Comment: As per TSB 2076606/1

If the vehicle is outside of its warranty period, this Technical Service Bulletin serves as informational guidance only. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

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Source: NHTSA ID: 11013726