Instructions:
By default, the next stop and timing information is based on the WT API. Useful for seeing approximately how far away your bus is, and how it relates to the schedule, before you step on board.
If you enable GPS (press the ➤ button on the map), the next stop and timing information will be based on your current location. Useful when you step onto the bus, because using your GPS will provide much more accurate information. Note that it won't switch to GPS mode until you reach a bus stop, if you aren't already at one. The bus icon on the map, which is also based on the WT API, will also disappear. Disabling GPS will revert back to the WT API.
When in WT API mode, the location and next stop is based on live estimated times and bus stop locations, not GPS. Therefore, the location may not be entirely accurate, may cut corners, and may jump around. Any re-routes and missed turns will also not be displayed.
The map always displays lines for the entire route, however the trip may not do the entire route. Pay attention to the destination name, and bus stops on the map.