Once was while making a right hand turn into my work parking lot. Was just me no passenger. And again one the way home from the gym with a passenger but we both where seat belts pressed the beakes kinda hard. Sounds just like the door chime when the keys in the ignition but much faster ding. New to the page but I’ll see if I can upload a short video of it. Had the truck for a few months recently got it road worthy and have driven it about 850 miles so far. Thanks Mike