NHTSA Complaint #11554481 — 2024 MAZDA CX-90

While driving on freeway with Adaptive cruise control set, vehicle automatically brakes when passing large vehicles, like semi trucks. ACC set at 75, I'm in left lane to pass truck going around curve and brakes come on and slow vehicle down to 60. I am clearly in the left lane to pass and truck in right lane. My safety and those behind are at a HUGE risk. This will cause an accident if not addressed. I am going to get rearended, it's just a matter of time. I have taken it to dealership and have been told this is normal. No it is not! No warnings other than car slamming on breaks for no reason. This has happened several times. I put down the date it first happened. I am available to bring it to dearship, again.