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Service bulletins for the 2023 Audi A4

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

868 on file from NHTSA, as of 2026-10-19.

About U1101 on the 2023 Audi A4: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: U1101 are shown. Show all

Bulletins, newest first
A5724552073601_52024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the message "Safe CP" appears in the cluster, DTC U110100; C115E54, U111800.
A5724552073601_52024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the message "Safe CP" appears in the cluster, DTC U110100; C115E54, U111800.
A5724472073601_42024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informatoim when the message "Safe CP" appears in the cluster; DTC U110100, C115E54, U111800.
A5724392073601_22024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the message Safe CP is in the cluster, with DTC U110100, C114E54.
A5724362073601_12024-05-06. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information when the message Safe CP appears in the instrument cluster; DTC U110100; C115E54.
A5724322072587_22024-03-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances where the message Safe CP is in the instrument cluster and DTC U110100, C115E54 is stored.
A5724292072587_12024-02-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin requests that technicians create a PSS record in the Pending Service Solutions Database in instance where Safe CP showing in the instrument cluster with DTC U110100.
A9722882068037_22022-11-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides instructions on how to address DTC U014000, or DTC U110100.
A9722872068037_12022-10-05. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides instructions on how to address DTC U014000, or DTC U110100.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.