2026 Audi Q3

While driving on the highway at approximately 40 mph with no obstacle ahead and no braking input from the driver, the vehicle applied its brakes hard on its own and came to an abrupt stop. There was audible tire noise and a burnt smell. No injury occurred, but the sudden unintended braking created a serious risk of a rear-end collision. The vehicle was driven to Audi Fort Lauderdale for inspection. On arrival at the service garage, a vibration was felt again and reported to the service advisor in person at that time. The dealership ran two road tests and a system scan, reported it could not duplicate the malfunction, and found no stored fault codes. No cause was identified for the unintended braking or for the burnt smell. The vehicle is equipped with automatic emergency braking and driver-assistance systems. The concern is that one of these systems activated without cause and without warning at highway speed. Because the event was intermittent and left no stored fault, it may not be captured by a standard diagnostic scan. This is reported so it is on record and can be compared against similar reports from other owners.