Rev Up for Success: Conquer the 2026 Commercial Driver's License (CDL) Exam!

When air pressure in the braking system falls below 60 psi, it is crucial for the driver to pull over and investigate the braking system. This is because a drop in air pressure could indicate a significant issue within the braking system, such as a leak or malfunction. Operating a vehicle with low air pressure puts the driver at risk, as the brakes may not function properly, leading to potential accidents.

Pulling over allows the driver to safely address the issue before it becomes more dangerous. Investigating the braking system ensures that if there is a problem, it can be resolved before the vehicle continues on the road. Maintaining proper air pressure is vital for the safe operation of the vehicle, as it directly affects the braking capability.

In contrast, other actions, such as increasing speed to clear the area or continuing to drive without concern, pose a severe risk to safety. Checking for leaks, while important, is a step that should come after ensuring the vehicle is stopped safely and can be done more effectively once the vehicle has been pulled over for a thorough inspection.