The most important thing to do when the low air pressure warning comes on is

The most important thing to do when the low air pressure warning comes on is

• A. stop and park safely as soon as possible
• B. continue driving to nearest service
• C. increase throttle
• D. ignore

Answer: (A)

Low air pressure in the brake system means the brakes may not work reliably. The most important thing is to stop as soon as it’s safe and park in a safe location. When air pressure falls, both tractor and trailer brakes can lose effectiveness, increased stopping distances are possible, and you could end up with a brake failure a moment later. By pulling over promptly, you protect yourself and others while you check the system, note the current pressure, and decide whether you can continue or need assistance. Continuing to drive, revving the engine harder, or ignoring the warning won’t restore safe braking and greatly raises the risk of a dangerous situation.