Assist problems of the 2021 Hyundai Palisade

From driver: "while traveling westbound on john lynch st, I approached the left turn lane heading southbound on valley st. I engaged the brakes and began navigating the left turn at approx. 30 mph. While turning, the vehicle's "lane assist" engaged preventing me from completing the turn. Halfway into the turn, the vehicle continued westbound, hopped the curb, and collided with a stationary road sign that was not in use. I continued through the intersection and pulled off the roadway. " follow-on questions: 1) how fast was the customer traveling when they were actively turning? a. 30 mph, which I am assuming was the approach speed. To the best of the vehicle operator's recollection, the approach speed was appropriately 40-45 mph, with an active turn speed of 30 mph. 2) what was the recent usage of the vehicle before the incident? was it used that day? how long had the vehicle been driving before the incident? a. The vehicle was driven, by the same driver, approximately 12 miles to work the morning of the accident. Prior to the accident, the vehicle was driven around the same city as the accident for approximately two hours. 3) did any vehicle operator notice anything wrong or unusual about the vehicle prior to the incident? a. Vehicle operator observed that the lane assist dash board icon was blinking on and off throughout the course of a few hours prior to the accident. Vehicle operator attempted to disable the lane assist feature by both pressing and holding the lane assist button located inside of the vehicle. 4) any after-market equipment installed? a. Vehicle was equipped with both law enforcement lights and law enforcement siren. 5) any upfits? a. The vehicle did not have up-fits. 6) will the customer agency consent to the oem (or NHTSA) retrieving information from the vehicle's event data recorder? a. Yes.