What is one effective action to take in the event of a bus breakdown?

Contacting the school bus garage is the most effective action to take in the event of a bus breakdown because they have the proper expertise, resources, and tools to assist with repairs or arrange for a tow. The garage can provide guidance on what steps to take next, ensuring the safety of the passengers and the swift resolution of the issue.

In such situations, it is crucial to have a structured response plan, and the school bus garage will be familiar with protocols to follow during a breakdown, including how to safely handle the passengers. This option prioritizes the safety of everyone involved and seeks professional assistance, which is vital during mechanical failures.