What should you do when the low air pressure warning light comes on?

When the low air pressure warning light comes on, it is crucial to take immediate action to ensure the safety of the passengers and the bus itself. The correct approach is to recognize that a low air pressure situation indicates a serious problem with the air brake system. At this point, it is not advisable to proceed with the run, as the condition of the brakes may compromise safe operation.

Using the parking brake or relying on the emergency braking system to stop the bus is not sufficient, as these actions may not effectively address the low air pressure issue. Instead, the driver should find a safe location to stop the bus as quickly as possible, ensuring that all passengers are safe and following proper evacuation procedures if necessary. The key is to prioritize safety by not allowing the bus to continue operating under potentially hazardous conditions.