2021 Audi Lineup Parking Assist False Positive TSB

Owners of various 2021 Audi models might encounter an annoying issue with their vehicle's parking assist system. This problem, detailed in Technical Service Bulletin (TSB) 91 20 14 2060675/1, involves the parking assist system providing false alerts and, in some cases, visible damage to the park assist sensors. This can manifest as an Audi e-tron parking assist fault.

The TSB explains that the root cause is often a de-bonded park assistance sensor holder. This means the sensor is no longer securely attached to its component, such as the front bumper, rear bumper, or front grille.

Symptoms

If your 2021 Audi is affected by this issue, you might observe one or more of the following symptoms:

• The parking assist system intermittently alerts you to an obstruction, even when there is no object in front of your vehicle. This is a clear sign of an Audi e-tron parking assist fault.
• One or more park assist sensors in the front grille, or other areas, appear to be 'pushed in' or improperly fixed in position.

These symptoms are often linked to the park assistance sensor holder becoming de-bonded from its mounting point.

Fault codes / DTCs

The Technical Service Bulletin indicates that the electronic central electrical (BCM) control module, specifically J519 (address word 0009), may store one or more Diagnostic Trouble Codes (DTCs) related to this issue. However, the TSB 91 20 14 2060675/1 does not list specific DTC codes that may be stored.

What the service bulletin says

The TSB 91 20 14 2060675/1 outlines two main scenarios for addressing the de-bonded park assistance sensor holder:

1. Scenario 1: Replacement Sensor Holder Available. If a replacement sensor holder is available, along with technical instructions for reattachment, the repair can proceed as directed in the repair manual. This allows for the re-securing of the existing sensor.
2. Scenario 2: Replacement of Entire Component. If the sensor holder is not available as a separate part, the entire component (e.g., the bumper or grille) to which the sensor is attached must be replaced. In such cases, technicians are instructed to retain the loose sensor holder(s) to accompany the component for part submission to the Warranty Parts Return Center (WPRC).

Technicians are also advised to securely attach the sensor holder(s) to the component, marking their original position. Components sent to the WPRC without the sensor holders will be returned, and the claim debited.

What to do

If you own a 2021 Audi model and are experiencing false parking assist alerts or notice a 'pushed in' park assist sensor, it is recommended to contact your authorized Audi dealership. Explain the symptoms you are observing, mentioning the potential Audi e-tron parking assist fault.

Referencing Technical Service Bulletin 91 20 14 2060675/1 (or TSB 2060675) can help your service advisor quickly understand the issue. The dealership will be able to diagnose the problem and perform the necessary repairs, either by reattaching the sensor holder or replacing the affected component as per Audi's guidelines.

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Source: NHTSA ID: 10180147