What safety feature should be inspected along with the tires?

When conducting a commercial vehicle inspection, it's essential to ensure that safety features are functioning properly, as they play a crucial role in the overall safety of the vehicle. Inspecting seat belts alongside tires is particularly important because both contribute directly to passenger safety.

Tires are fundamental for maintaining traction and stability on the road, while seat belts are essential for restraining occupants during a crash. A vehicle could have the best tires, but if the seat belts are not functioning correctly, the safety of the passengers would be compromised in the event of an accident. Regularly examining both components together helps ensure that critical safety measures are in place and operational, reducing the risk of injury in a collision.

While other options like the airbag system, horn, and windshield wipers are also important for vehicle safety, they do not relate directly to the critical function of restraints during a crash, which makes seat belts the most relevant choice to inspect alongside tires.