You should remind riders to take their belongings with them if they get off the bus. It is best to tell them:

Reminding riders to take their belongings with them is best done before coming to a complete stop because it allows passengers to prepare to exit the bus in an organized manner. This proactive communication helps ensure that passengers are aware of their belongings and can gather them without rushing when the bus stops. It is essential for the safety and comfort of passengers, as it minimizes the risk of them leaving items behind or causing chaos during the final unloading process.

When reminders are given before stopping, it creates an opportunity for riders to be attentive and engaged, ensuring they have everything they need as they prepare for departure. This approach is also conducive to maintaining the flow of the unloading process, reducing delays and enhancing overall efficiency.