CVSA's Brake Inspection Initiative Uncovers Significant Deficiencies in Commercial Vehicles
Citing data from the Commercial Vehicle Safety Alliance (CVSA), inspectors found that a staggering 237 out of 4,560 commercial motor vehicles (CMVs) had brake issues that met the criteria for being deemed unsafe. This means that over one-fifth of their braking systems were not functioning properly.
A recent inspection day revealed alarming statistics about brake safety across North America. Nearly 10% of CMVs inspected were taken off the road due to serious brake-related problems.
The CVSA organized a surprise inspection event on April 22,focusing specifically on brake safety. Inspectors conducted thorough checks on various components including drums and rotors during routine roadside inspections.
In just one day, inspectors evaluated over 4,500 commercial vehicles and found that nearly nine percent had critical brake violations leading to immediate service restrictions. For more details, check out their news release here: https://t.co/wGgG5h3tBW pic.twitter.com/KPHIluB8sh — CVSA (@CVSA) June 17, 2025
The findings showed that while most inspections—91.3%—did not reveal any significant issues with brakes, there were still notable concerns among those flagged for violations. A total of 398 vehicles faced restrictions until they could rectify these problems.
A Closer Look at Brake issues
“Problems with drum and rotor integrity can severely compromise a vehicle’s braking efficiency,” noted CVSA officials. “This not only affects compliance but also poses risks to other road users if parts break loose during transit.”
The inspection results highlighted specific areas needing attention; as an example, around eight percent of inspected vehicles had drum or rotor violations—many resulting in immediate service shutdowns.
Moreover, it was reported that an alarming number—237 CMVs—were identified as having at least one-fourth of their brakes inoperable or defective.
“Inspectors also flagged numerous other issues,” said CVSA representatives. “these included problems with hoses and tubing related to brakes and also steering axle failures.” In totality, there were various out-of-service violations such as worn lines or leaks affecting performance.”
An interesting regional comparison emerged from this data; Canada exhibited higher rates of brake-related infractions than its U.S counterparts—with about thirteen percent versus eight percent respectively among inspected vehicles.
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