What should be done if the low air warning signal comes on while driving?

When the low air warning signal activates while driving, it indicates that the air pressure in the braking system has dropped below a critical level. This situation can lead to a loss of braking power, which poses a significant safety risk. The appropriate response is to pull over safely as soon as it is safe to do so and check the air pressure.

Checking the air pressure allows you to assess the situation and determine whether there is a mechanical issue with the air brake system, such as a leak, which needs immediate attention. Continuing to drive with a low air pressure can lead to brake failure, endangering both the driver and other road users. It is essential to address the warning immediately to ensure safety and maintain effective braking performance.