During the school-bus-only portion of the vehicle inspection, what must a driver inspect and demonstrate regarding the student lights?

School Bus (S) Endorsement • Free CDL Practice Question
Regulation

AAMVA CDL Manual Section 11.3, School Bus Only, Student Lights Front and Back, p. 11-4; 49 CFR Part 380, Appendix D, Unit D1.9 (Pre- and Post-Trip Inspections, citing 49 CFR ยงยง 392.7 and 396.11)

Why This Matters

Amber lights warn approaching traffic to slow down because the bus is about to stop; red lights and the stop arm tell traffic it must stop because students are crossing or boarding. If either light system fails and goes unnoticed, drivers around the bus lose the warning system they depend on to avoid hitting a child in the roadway.