Why does Brake Assist Service light appear periodically?

Hello, there is something going on that isn't right, for sure. I would have this vehicle checked right away to find out if there are any trouble codes related to chassis modules such as anti-lock brake or related that are occurring. Also, you could have something to do with body control modules. There are so many possibilities these days with the addition of cameras and radar to vehicles for the purpose of safety assist. Something as simple as the wrong windshield being replaced in the vehicle could cause problems. There's no way anyone here could know if you've ever had a windshield replaced, for example. Tire condition and size and wear can contribute, even different tire models if matched on the same vehicle. Hands on inspection for sure is needed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops