2024 KIA SPORTAGE — FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

hello , my mom was driving . she had all the lane driving assist systems on. the driving assist , lane assist, forward collision assist, lane keeping assist, & cruise control. it had started to rain my mom tried to move over to the middle lane the steer wheel would not let her it pulled her back as if someone was on the side of her but it wasnt it then started driving by itself. the car started malfunctioning , it toke control my mom tried to get a hold of the wheel but the power assit would not let her. it then turned by itself and drove straight into a mountain. we hit it head on with no warning. we then flipped 5 times and landed upside down. the door and windows did not work we were trapped. the power was completely out in the car. my insurance company has inspected it and states that they think the car malfunctioned. i have called kia and they stated a engineer was suppose to go get the black box to get the data. it has been three weeks kia has stopped returning my calls. my insurance company is holding my car for 90 days. Please Help. It is availible for inspection .