2021 Audi Parking Aid Malfunction TSB 2058769/1

If you own a 2021 Audi and are experiencing issues with your parking aid system, you're not alone. Audi has released Technical Service Bulletin (TSB) 2058769/1 to address instances where the parking aid may sporadically stop working or display warning messages.

This bulletin specifically targets diagnostic trouble codes (DTCs) B107BF0 and B10FCF0, which relate to environmental influences affecting the parking aid sensors. Understanding this TSB can help you comprehend why your vehicle might be exhibiting these symptoms.

Symptoms

Owners of affected vehicles may observe one or more of the following symptoms:

• A warning message appearing in the instrument cluster related to the parking aid system.
• The specific message "Front/rear parking aid: Sensor view restricted because of environmental factors No obstacle warning."
• The parking aid system may sporadically fail to function when needed.

Fault codes / DTCs

When diagnosing the issue, a technician may find one of these diagnostic trouble codes (DTCs) stored in the J1121 control module (address word 00A5) for driver assist systems:

What the service bulletin says

Technical Service Bulletin 2058769/1 explains that the 6th generation ultrasound parking aid sensors are designed to detect problems caused by external influences. These can include dirt, ice, foreign objects, or even external ultrasound signals, which can lead to a temporary Audi parking aid malfunction.

The TSB instructs technicians to perform a thorough inspection of the ultrasound sensors and their surrounding areas. This includes checking for any dirt, ice, foreign objects, stickers, proper license plate fit, and any damage to the bumper, air intake grille, or underbody. They also need to verify the fit of the sensors, bumpers, and trim.

If the parking aid issue occurs sporadically, the bulletin states that it is likely due to these environmental factors, and no further repairs are typically necessary. It specifically advises against replacing control modules J1121 or J1122 in such cases, as it will not resolve the underlying cause.

However, if the Audi parking aid malfunction is reproducible or static, it may indicate a faulty ultrasound sensor, its mounting, or related electrical circuits. In these persistent cases, standard diagnostic procedures should be followed, paying attention to the frequency counter for the fault code.

What to do

If your 2021 Audi is experiencing a parking aid malfunction or displaying a "No obstacle warning" message, you can start by visually inspecting your parking sensors. Look for any visible obstructions like dirt, ice, leaves, or even a misplaced license plate that might be blocking the sensors.

If cleaning the sensors doesn't resolve the issue, or if the problem is persistent rather than sporadic, it's recommended to schedule an appointment with an authorized Audi service center. They have the necessary diagnostic tools and expertise to follow TSB 2058769/1 and accurately diagnose whether the issue is environmental or requires a repair to a sensor or circuit.

Source: NHTSA ID 10172763