NHTSA Complaint #11573249 — 2021 AUDI Q8

The vehicle recently started to behave uncharacteristically when navigating around the curbs and changing lanes, it feels like you have hit a patch of black ice or an oil slick which I attributed to needing new tires. I purchased new tires according to the vehicle Audi manufacturer specification and had an alignment done on 2/14/2024 as is required for all-wheel drive vehicles. The situation was explained to the Audi South Atlanta Service Desk on 2/14/2024 and was logged as "Customer states that the vehicle stutters/shakes and tires seem to lower when changing lanes & going around light curves. The Customer requested that the lane departure system and other related components be checked to confirm if they are operating as designed." Dealership feedback: "Test drove: vehicle driven 2 miles and operating normally when compared to the same or similar models. No DTC's detected & lane departure system operating properly at the same time. The only noise/feeling felt was coming from the Audit Quattro bind from the all-wheel drive electronic - normal behavior." Despite the Audi Service Dept diagnosis and analysis of the issue reported, the behavior continues and is very unnerving. It seems like the front and rear axles are not in sync with the Audi Quattro Electronic all-wheel drive system. I reported the matter to Audi of America, Inc. Customer Care, Case# 06125039 on 2/21/2024, and would like the National Highway Traffic Safety Administration (NHTSA) to be aware of this situation in the event other owners of the Audit Q8 report the matter or this issue results in death or injuries.