2025 Audi A5 Instrument Cluster Messages TSB

Owners of 2025 Audi A5, Q5, S5, and SQ5 models may encounter specific issues related to their vehicle's electrical system, manifesting as warning messages in the instrument cluster. This manufacturer communication, identified by NHTSA ID 11020380, aims to provide technical information to address these concerns when certain diagnostic trouble codes (DTCs) are present. This bulletin is particularly relevant for understanding and resolving the conditions described.

Symptoms

Owners may observe the following symptoms in their 2025 Audi A5, Q5, S5, or SQ5:

• The instrument cluster displays "various messages in the instrument cluster."
• A specific error indicating "00C5 cannot be reached" may appear.

These messages suggest an underlying issue within the vehicle's electrical system.

Fault Codes / DTCs

When these symptoms occur, diagnostic scans may reveal specific fault codes. The manufacturer communication, NHTSA ID 11020380, highlights the following Diagnostic Trouble Codes (DTCs):

Code	Description
U02AB00	Lost Communication With Control Module 00C5
U042200	Invalid Data Received From Control Module

These DTCs indicate communication issues within the vehicle's network, specifically involving control module 00C5.

Diagnosis and Trigger Conditions

This bulletin provides guidance for situations where the instrument cluster displays the aforementioned messages and the DTCs U02AB00 and U042200 are stored. The presence of these specific messages and codes helps technicians pinpoint the area of concern within the electrical system. The 2025 Audi A5 manufacturer_communication is crucial for proper diagnosis.

Technical Information for Addressing the Issue

The manufacturer communication (NHTSA ID 11020380) offers information to help technicians understand and address the conditions leading to these instrument cluster messages and DTCs. While the summary indicates it provides information rather than a specific repair procedure, it is intended to guide service personnel in resolving the underlying electrical system communication problems. This ensures that the "various messages in the instrument cluster" and the "00C5 cannot be reached" errors are properly diagnosed.

Owner Action

If you own a 2025 Audi A5, Q5, S5, or SQ5 and experience "various messages in the instrument cluster" or the specific "00C5 cannot be reached" error, especially if accompanied by a warning light, it is recommended to contact your authorized Audi dealership. Inform them about the symptoms and mention the potential relevance of manufacturer communication NHTSA ID 11020380. Your dealer will be able to perform a diagnostic scan to confirm the presence of DTCs like U02AB00 or U042200 and apply the appropriate technical guidance.

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Source: NHTSA ID: 11020380