If a lower pressure warning comes on for one system in a truck with a dual air brake system, what should the driver do?

When a lower pressure warning activates in a dual air brake system, the driver should stop immediately and park safely. In a dual air brake system, there are two separate air systems that work together to provide braking power. A warning of low pressure indicates a potential failure in one of the systems, which compromises the overall effectiveness of the brakes.

Safely stopping the vehicle is crucial because continuing to drive with a compromised braking system can lead to a complete brake failure, putting the driver and others on the road at risk. By parking the vehicle, the driver can assess the situation better, potentially contact roadside assistance, and avoid any dangerous scenarios that could arise from operating the truck with impaired brakes.

In this context, options suggesting continued operation, like driving to a garage or testing the remaining system, do not prioritize safety nor address the immediate risk posed by low brake air pressure.