What is the first step when preparing to check fluid levels in the Truck?

When preparing to check fluid levels in the Truck, the first step involves finding the Systems Check. This is essential because the Systems Check provides critical information regarding the vehicle’s current statuses, including fluid levels and any potential issues that may need to be addressed. By consulting the Systems Check before any physical inspection, a technician can ensure they are informed about the vehicle's operational condition and can approach the fluid level check with an understanding of what specific fluids require monitoring or topping off.

Engaging the parking brake is a necessary safety measure but serves as a precautionary step that follows the assessment of the truck's systems. Starting the engine is not advisable when checking fluid levels, as many checks are best performed when the vehicle is off to avoid hazards and inaccuracies. Shutting off the engine is typically necessary before performing checks, but it assumes that the technician has already established the necessity for further action through the Systems Check. Thus, locating the Systems Check is the logical and informed starting point for the procedure.