During PDI on chassis dash components, which monitor should be checked?

During the Pre-Delivery Inspection (PDI) of chassis dash components, it is crucial to check the backup monitor. The reason for this is that the backup monitor serves as a safety feature to enhance visibility while reversing the vehicle, which is vital for preventing accidents and ensuring the safety of both the driver and pedestrians. Ensuring that this monitor functions correctly is essential for operational safety.

In contrast, the other monitors listed serve different functions that are not directly related to the critical task of vehicle safety during movement. The fuel monitor provides information about fuel levels, which is important for overall vehicle operation but not as immediate a concern during the PDI. The battery monitor tracks battery performance and health, useful for maintenance but not directly related to daily operational safety. The navigation monitor aids in directions and route planning, which, while helpful, does not impact the immediate safety during reversing. Thus, prioritizing the functionality of the backup monitor aligns with safety protocol during vehicle inspections.