What should be checked in the vehicle's braking system during a pre-trip inspection?

During a pre-trip inspection, it is essential to check the functionality of the brakes and the air pressure in the braking system. This comprehensive check ensures that the brakes are operating correctly and can effectively stop the vehicle, which is crucial for safety on the road.

The braking system involves various components that must be in good working condition, including the brake pads, brake lines, and air pressure for vehicles with air brakes. Ensuring proper air pressure is vital, especially for air brake systems, as it directly affects braking performance. If the air pressure is insufficient, the brakes may not engage properly, leading to potentially dangerous situations.

This thorough inspection checks for not just visible issues, but also performance elements, ensuring that drivers are aware of the brake system's condition before embarking on their journey. While checking brake fluid levels, visual indicators for rust, or brake pad thickness can be part of a vehicle maintenance routine, they alone do not guarantee the full operational readiness of a vehicle's brake system.