What is the first action to take when the low air pressure warning comes on?

When the low air pressure warning comes on, the first action you should take is to stop and safely park the vehicle as soon as possible. This is crucial because operating a vehicle with low air pressure in the braking system can lead to brake failure and increase the risk of an accident. Low air pressure indicates that the air brakes are not functioning properly, which compromises the vehicle's ability to stop effectively.

Taking immediate action to park the vehicle safely ensures both your safety and the safety of others on the road. Additionally, continuing to drive when the warning is active can lead to potentially dangerous situations, as the braking system relies on adequate air pressure to operate correctly. Checking gauges or increasing engine speed may seem logical, but these actions do not address the immediate need to halt the vehicle and prevent a serious incident.