2025-2026 Audi A5, S5, A6 Adaptive Cruise Control Unavailable TSB

Audi has released Technical Service Bulletin (TSB) 2080189/1, also known as PSS 96, to address a specific concern affecting certain 2025-2026 Audi A5, S5, and A6 models. Owners may observe warning messages related to the adaptive cruise control system. This bulletin provides guidance for technicians on diagnosing the issue and informs owners about the current status of a permanent solution.

Symptoms

Owners of affected vehicles may see one of the following messages displayed in the instrument cluster:

• "Adaptive cruise control: currently unavailable. See owner's manual"
• "Adaptive cruise assist: currently unavailable. Door open"

These messages indicate that the vehicle's adaptive cruise control system is not functioning as intended, leading to the Audi adaptive cruise control unavailable condition.

Fault Codes / DTCs

When diagnosing this issue, technicians may find one or more of the following event memory entries logged in diagnostic address 0013 as static or intermittent:

• U112200: Data bus implausible message

This DTC is often accompanied by specific symptom numbers that help identify the affected door:

Symptom number	Affected door	Diagnostic address
16776924	Rear passenger side door	00BC
16776925	Rear driver side door	00BB
16776926	Front passenger side door	0052
16776927	Driver side door	0042

Technical Background

The root cause of the Audi adaptive cruise control unavailable message and the associated DTC U112200 is a software issue located within the exterior door handle sensor. This software anomaly leads to implausible data bus messages, which in turn affect the functionality of the adaptive cruise control system. Affected vehicles, such as the 2025 A5 and S5 (FU) and A6 Sportback e-tron and S6 Sportback e-tron, may have software version 1308.

Important Warnings for Owners

Audi has provided critical information for both technicians and owners regarding this issue:

• Do not replace components: "Do not replace any components for this condition since this will not resolve the customer's concern." Replacing parts like the door handle sensor or related modules will not fix the underlying software problem and should be avoided.
• Postpone repair: "If this entry is stored in one or more door control units, please postpone the repair as there is currently no repair for the customer complaint." A permanent solution is not yet available, and immediate repairs are not recommended.
• Solution timeline: "A sustainable solution is currently being implemented. The measure is currently planned to be available by the end of the 1st quarter of 2026." Owners should be aware that a definitive fix is still under development.
• Target date is not binding: "The target date communicated here is based on planning and is not binding. During the validation, technical and regulatory approval of measures, there may be delays or hindrances in providing the measure throughout the entire process. This must be considered accordingly when communicating with customers." The expected availability date for the solution may change.

Diagnosis and Current Action for Technicians

The TSB 2080189/1 (PSS 96) provides specific instructions for technicians to handle vehicles presenting with the Audi adaptive cruise control unavailable condition. This PSS may apply to vehicles still within the new model launch repair authorization period.

• Initial Assessment: Technicians are instructed to diagnose the vehicle to confirm that the customer's reported condition aligns with the issues described in this PSS TSB. This involves verifying the presence of the instrument cluster messages and potentially the logged DTC U112200.
• Customer Communication: If the condition matches, technicians must inform the customer that a permanent solution is anticipated by the end of the first quarter of 2026. Crucially, customers should be advised that no repairs are necessary at this point, as replacing components will not resolve the underlying software issue.
• PSS Record Creation: A mandatory step for workshops is to create a Pending Service Solutions (PSS) record in the PSS database. This is done via the Audi Now portal, under "Service | AU-US > Pending Service Solutions (PSS)."
• Launch Phase Vehicles: For vehicles still in the launch phase, the workshop must create a web ticket with the Technical Assistance Center (TAC) for repair authorization. The TSB number, 2080189/1, must be referenced in the first line of the TAC case.
• Diagnostic Procedure: To identify the specific affected door, technicians should run the test plan "Read/erase event memory" within the door control unit. This procedure is performed using Guided Fault Finding (GFF) via the path "Door electronics 0042 / 0052 / 00BB / 00BC -> Functions." The diagnostic address for these event memory entries is 0013.
• Log Review: After running the diagnostic test, the diagnostic log must be uploaded and checked. Technicians are looking for the specific entry "Sensor for exterior door handle - no communication" under the respective function test. If this entry is present in one or more door control units, the repair should be postponed, as a permanent fix is not yet available.

Temporary Workaround

While a permanent fix is being developed, the issue can be temporarily remedied by simply opening and closing the affected doors. This action may clear the warning message and restore adaptive cruise control functionality for a period.

Solution Timeline

Audi is actively working on a sustainable solution for this software issue. The current plan is for this measure to be available by the end of the first quarter of 2026. However, as noted by Audi, this target date is based on planning and is subject to change due to validation, technical, and regulatory approval processes.

Warranty Information

For warranty claims related to the diagnostic process outlined in TSB 2080189/1, Audi specifies the following details:

• Claim Type: If the vehicle is outside of any warranty, this Technical Service Bulletin is for informational purposes only.
• Service Number: 5711
• Damage Code: 0039
• Labor Operations:
  • GFF / Guided Functions (0150 0010): This operation is for guided fault finding and is associated with a time unit that refers to the Service Repair Time (SRT) with associated operations.
  • GFF / Guided Functions (0150 0060): This operation is also for guided fault finding, with the time stated on the diagnostic protocol.

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review and audit by Audi Warranty.

NHTSA ID: 11027348