The Importance of an Air Brakes Course

Jerit Justin • April 13, 2021

If you drive a commercial motor vehicle with air brakes in Ontario, you must pass an air brakes test to have the air brakes restriction removed on your commercial driver’s license. If you don’t pass the test, you won’t be allowed to drive a vehicle with air brakes. One way to prepare for the test is to take an Air Brakes Course at a reputable driving school like Trukademy. These courses are great for company personnel, professional drivers, and even supervisors. Everyone should know the proper way to operate a vehicle with poor brakes, and what can happen if an untrained driver tries to operate a vehicle with air brakes.


What are Air Brakes?

Simply put, an air brake is a brake system using compressed air. It is a friction-type brake that works when compressed air presses a piston to apply pressure to the brake pad, stopping the vehicle.

Air brakes made braking more precise and safe around the world. They originally were designed for railroad locomotives. These brakes are now used on buses, trucks, railroads, and amusement-park rides. The modern systems are always changing and being updated, so drivers need to review the fundamentals to stay up-to-date on training. By doing so, drivers can reduce their company’s maintenance costs.


What Does the Course Teach?

In the course, you will learn about the components of an air brake system and how it all works. You will also learn about breaking fundamentals, testing and maintaining the proper function of the system, and how to handle system failures if they occur. In a commercial vehicle, the air brake system is a critical component, and under the driver’s responsibility. The driver needs to know the theory and practical use of the system.

Students learn and understand the importance of air brake safety. They learn to reduce the risks with poor braking and troubleshoot system problems. Those who take the course also learn how to maximize the performance of the air brake system. The participants will learn proper stopping distances and vehicle braking dynamics. Pre-trip inspection can identify the most basic defects and is part of the course as well.

Classroom and in-cab training is provided, giving the students the best training and test preparation possible.

Once finished the course, each student or participant will have all new information and updated knowledge to operate and maintain an air brake system. This shows an employer has a commitment to the standard of care and diligence to safety. Taking this course at top school like Truckademy is the best way to have safe, well-trained drivers on the road.


April 24, 2025
If you’re considering a career in commercial driving in Ontario, one of the first decisions you’ll face is choosing between an AZ and DZ license. While both open doors to rewarding opportunities in the transportation industry, they serve different purposes, vehicle types, and career paths. In this blog, we’ll break down the key differences between AZ and DZ licenses, help you decide which is right for you, and explain how Trukademy can guide you through the process. What is an AZ License? An AZ license is the highest class of commercial license in Ontario. It allows drivers to operate any truck/tractor-trailer combination, including: Tractor-trailers Double trailers Dump trucks with towed trailers Tankers and flatbeds Key Features of an AZ License: Required for operating vehicles exceeding 4,600 kg with air brakes and towed trailers In-demand for long-haul trucking jobs Allows you to drive throughout Canada and the U.S. Offers higher salary potential Requires completion of a Mandatory Entry-Level Training (MELT) program Ideal For: Long-haul truck drivers Logistics and freight transportation Cross-border and regional trucking High-paying transport careers What is a DZ License? A DZ license is another class of commercial license in Ontario, but it comes with limitations. It allows you to operate: Straight trucks Dump trucks Cement mixers Garbage trucks Key Features of a DZ License: Operate vehicles over 11,000 kg with no towed trailer over 4,600 kg Often used for local and municipal work Lower training requirements compared to AZ Typically day shifts and home daily Ideal For: City and regional driving Construction and utility vehicles Municipal services Drivers seeking more predictable hours AZ vs. DZ: Key Differences
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