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Bus Inspection

A bus inspection covers everything a truck inspection does plus the passenger-specific items that keep riders safe. Before every trip you must check the vehicle's critical systems and the interior features that passengers depend on, and you must keep watching the bus's condition while driving. Never carry passengers on a bus with a safety defect. This chapter covers the pre-trip, interior, and en-route inspections.

Passenger Interior Inspection

Because a bus carries people, its inspection includes interior items a freight vehicle does not have. Seats, handrails, floors, and signaling devices must all be safe and working. A loose handrail or cluttered aisle can injure riders, so these checks matter as much as the mechanical ones.

Check seats and handrails

Seats must be firmly fastened and undamaged, and handrails and floor covering must be secure.

Test signaling devices

Passenger stop-request cords, buttons, or strips must work so riders can signal for a stop.

Keep aisles and steps clear

The aisle and stairwell must be free of objects that could trip riders or block an exit.

Confirm interior lighting

Interior and step-well lights must work so riders can see steps, aisles, and exits.

Emergency Exits and Access Panels

Emergency exits are a passenger's lifeline in a fire or crash, so every one must work. Roof hatches, emergency doors, and access panels all have to be checked and properly secured before driving. A blocked or broken exit is a defect that keeps the bus out of service.

Verify every exit

Emergency exit handles and latches must work, and exits must be closed but able to open quickly.

Secure roof hatches

Roof hatches may be locked slightly open for air but must close properly and be shut in bad weather.

Latch access panels

Engine doors and access panels must be closed and latched so they do not open while driving.

Do not drive with exit defects

Never carry passengers on a bus with an unsafe emergency exit; have it repaired first.

Critical Vehicle Systems

The mechanical pre-trip inspection for a bus covers the same critical systems as any commercial vehicle. Brakes, steering, tires, lights, and mirrors must all be safe before you carry riders. On a heavy, loaded bus these systems are under extra strain.

Test the brakes

Service and parking brakes must hold, and on air brakes the low-pressure warning and pressure build-up must work.

Check steering

There must be no excessive play or looseness in the steering wheel.

Inspect tires

Tires need proper inflation, adequate tread, and no cuts, bulges, or other damage.

Confirm lights and mirrors

Lights must work and mirrors must be adjusted to see down the sides and the loading area.

Emergency Equipment

Every bus must carry working emergency equipment in case of a fire, breakdown, or roadside stop. Checking this equipment is part of the pre-trip inspection. Missing or defective equipment must be replaced before the trip.

Carry a fire extinguisher

A properly charged and rated fire extinguisher must be present and in good condition.

Have warning devices

Reflective triangles or other required warning devices must be aboard for roadside stops.

Include spare fuses

Spare electrical fuses must be carried if the bus uses them.

Keep the service door working

The main service door and its controls must open, close, and latch safely for boarding riders.

En-Route Inspection

Safe drivers keep checking the bus after the trip starts, because problems can develop while driving. Watching the gauges and inspecting critical items at stops catches trouble early. Continuous attention prevents breakdowns and crashes with passengers aboard.

Watch the gauges

Monitor temperature, oil pressure, and air pressure to spot problems before they cause a breakdown.

Never ignore warnings

Treat any warning light or abnormal gauge reading as a signal to stop and check the problem.

Inspect at stops

During stops and breaks, check items such as tires, wheels, brakes, and lights.

Keep the interior safe

Clear trash and spills from the aisle and steps during the trip to prevent slips and falls.

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Safe Bus Driving

Last updated: July 2026