2019-2022 Audi Q8/SQ8/RSQ8 Parking Aid False Warnings TSB

Symptoms

Owners of 2019-2022 Audi Q8, SQ8, and RSQ8 vehicles equipped with the 7X2 parking aid (front and back) may experience false warnings from their front parking aid system. This often happens after the vehicle has been parked in a relatively cool garage and then driven into a warmer outside environment. The parking aid system may activate and detect "ghost objects" around the vehicle for the first few minutes of driving, even when no obstacles are present. This condition is what owners describe as a "2021 Audi Q8 parking aid false warnings" issue.

Diagnosis / Trigger Conditions

Audi Technical Service Bulletin 91 22 62 2065658/1 provides technical background on why these "ghost warnings" occur. The parking aid sensors are designed with temperature compensation. To prevent false or erratic temperature readings, the vehicle's temperature sensor output is dampened. When your vehicle transitions from a cool environment, like a garage, to a hotter outside temperature, it takes a couple of minutes for the temperature sensor to accurately reflect the actual outside air temperature. During this transition period, the parking aid sensors may be compensated to an incorrect temperature, leading to the detection of non-existent "ghost objects" and triggering false warnings. No relevant diagnostic trouble codes (DTCs) are stored in the vehicle for this condition.

Important Warnings

Audi advises that for this specific condition, do not replace any components for this condition since this will not resolve the customer's concern. The issue stems from the inherent physical limitations and design of the temperature compensation system, not a faulty component. Additionally, this Technical Service Bulletin 91 22 62 2065658/1 is informational only and is not applicable to any Audi Warranty.

Repair Procedure Summary

This TSB, identified as 91 22 62 2065658/1, replaces the previously issued Pending Service Solution (PSS) 2056388/1. The recommended actions depend on the vehicle's production date and service history:

• For vehicles with a VIN older than calendar week (CW) 50/2018 and that have not had SVM 09A042 performed: Technicians should follow the procedures outlined in TSB 2053801, titled "91 Front parking aid provides false warnings." After completing the steps in TSB 2053801, the vehicle should be retested to confirm the customer's concern is resolved.
• For all other vehicles (newer VINs or those with SVM 09A042 already performed): Owners should be informed that the "2021 Audi Q8 parking aid false warnings" behavior is due to physical limitations of the technology. Component replacement is not recommended as it will not resolve the issue. Instead, customers can be shown how to deactivate the automatic activation of the parking aid system through the MMI settings. This can be done by navigating to "Vehicle >> Parking Aid" in the infotainment system. It's important to note that deactivating this setting will not affect the automatic activation of the parking aid system and rearview camera when the vehicle is put into reverse.

Owner Action

If you are experiencing a 2019-2022 Audi Q8, SQ8, or RSQ8 parking aid false warnings, especially after temperature changes, it's important to understand that this behavior is often a characteristic of the system's design rather than a defect. You should not expect a component replacement to resolve the issue. For older vehicles that meet specific criteria (VIN older than CW 50/2018 and no SVM 09A042 performed), your Audi dealer may refer to TSB 2053801 for a potential software update or other service. For most other cases, you can manage the false warnings by manually deactivating the automatic parking aid activation in your MMI system via "Vehicle >> Parking Aid."

Source: NHTSA ID: 10207131