2021-2023 Audi A4/A5/Q5 Pre Sense Restricted Message TSB

Symptoms

Owners of certain 2021-2023 Audi vehicles may observe a specific warning message displayed in their instrument cluster. The verbatim message is: "Audi pre sense currently restricted. See owner's manual". This warning indicates that the Audi Pre Sense system is not fully operational or is operating with limitations.

It is important to note that this particular issue, as described in Technical Service Bulletin (TSB) 90 22 64 2059863/2, typically occurs without any associated diagnostic trouble codes (DTCs) being stored in the vehicle's control modules. This includes the front camera -R242-, the distance regulation control module J428, and the distance regulation control module 2 J850.

Diagnosis / Trigger Conditions

Audi's Pre Sense system relies on accurate data from various sensors, including wheel speed signals. These signals are provided by the ABS control module, J104, which monitors and compares the speeds of all four wheels simultaneously. The system uses this information to detect potential collision situations and initiate protective measures.

The 'Audi pre sense restricted message' is triggered when the system detects inconsistencies in these wheel speed signals. Common causes for such discrepancies include using different wheel sizes on the vehicle, significant differences in tire tread depth between wheels, or the installation of unapproved wheel/tire combinations. These variations can lead the Pre Sense system to interpret the data as unreliable, causing it to restrict its functionality and display the warning message.

Repair Procedure Summary

When encountering the "Audi pre sense currently restricted" message without any stored DTCs, the primary diagnostic and repair step involves a thorough inspection of the vehicle's wheel and tire setup. Technicians should verify that the installed wheel/tire combination is appropriate for the vehicle according to the official repair manual and the vehicle's type label.

This verification includes ensuring that all four tires are of the correct size, type, and have similar tread depths. Any unapproved or mismatched wheel/tire configurations should be corrected. Resolving these physical discrepancies in the wheel and tire setup is crucial for restoring the full functionality of the Audi Pre Sense system and eliminating the 'Audi pre sense restricted message'.

Important Warnings

This Technical Service Bulletin (TSB) 90 22 64 2059863/2 is provided for informational purposes only. It outlines a common cause and solution for the "Audi pre sense currently restricted" message. This TSB is not applicable for any Audi Warranty claims, meaning that any diagnosis or repair related to this issue, particularly if it involves replacing incorrect wheels or tires, may not be covered under warranty.

Source: NHTSA ID 10212933