These buttons are present only in several vehicle GPS trackers, depending on the manufacturer. To put in a different way, having one means increased safety measure.
For example, if a driver finds himself in an emergency case, the button will send a real-time alert to fleet managers or dispatchers.
Continually, it will be more likely to decrease or luckily, prevent accidents which correspond to respecting the DMV regulations, TSA or OSHA.
Once the alert is seen by the fleet manager, it will be easier for the authorities to react to the situation and hopefully save it.
If you explain this to your employees, your drivers will be keen on safety and on starting using the GPS tracking for delivery.
In this way, you not only show that you care about your business improvement but for their safety as well.
This is one way to create a better, safer and reputable company.
Conclusion
There is no easier way to tell employees unpleasant news. However, if you get the best of the vehicle GPS trackers, you will definitely go well.