More from TMC: More Miles Means More Maintenance Costs for North American Fleets
TMC, FleetNet Report Increased Fleet Uptime in Fourth Quarter
During the fourth quarter of 2021, fleets had longer stretches of uptime between unscheduled road repairs.

The TMC/FleetNet America report tracks miles between breakdowns.
Photo: Siegfried Schnepf/GettyImages
During the last three months of 2021, fleets averaged 42,459 miles of operation between unscheduled road repairs — up 18.4% from 34,652 in the third quarter.
That’s according to the latest Truckload Vertical Benchmark Study from the American Trucking Associations’ Technology & Maintenance Council and FleetNet America.
“Looking at the fourth quarter results, fleets are paying close attention to preventative maintenance while running fewer miles compared to the previous quarter, which shows an initial improvement in miles between breakdowns,” Tim Moore, vice president of TMcare at FleetNet America, said at a press conference during the TMC Annual Meeting in Orlando, Florida.
“Fleets are having to spend more time paying closer attention to their PM programs than ever before,” said Paul Gildenhorn, FleetNet’s vice president of sales. “They’ve had to make that equipment last," as fleets are having to run equipment longer due to supply chain shortages that have made procuring new trucks difficult.
FleetNet uses VMRS codes to categorize breakdowns. It found the top five codes represented 67% of total repairs: tires, brakes, powerplant, cranking system, and exhaust systems.
“The data indicates that the maintenance practices of the best-in-class fleets resulted in lower costs for those fleets,” added Greg Sullivan, maintenance supervisor at Marvin Keller Trucking. “I review the benchmarking reports, paying particular attention to the miles between breakdowns as well as tires and brakes and watching trends to help get ahead of repairs.”
Benchmarking Program Enhancements
The TMC/FleetNet Vertical Benchmarking Program is changing to provide even more information to help fleets continue to reduce their unscheduled roadside repairs. Beginning with first quarter of 2022, there will be less of an emphasis on miles between breakdowns and more on insights and trends coming from the data, along with recommendations from experts in the industry.
“TMC exists to help our members run better, more profitable maintenance operations,” said TMC Executive Director Robert Braswell. “Peer-to-peer benchmarking is an exciting step toward helping fleets do just that. The next step is to share the best practices fleets employ to become best-in-class in a particular system.”
The TMC/FleetNet Vertical Benchmarking Program is a benefit for TMC members. In addition to the executive summary, which is available to TMC members, fleets that participate by sharing their data are provided an analytic tool that allows them to drill into their data, comparing it to the industry average.
More Maintenance

DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect
The changes reflect EPA guidance aimed at reducing downtime caused by emissions-system faults while maintaining compliance requirements.
Read More →
New Agentic Predictive Maintenance Report Demonstrates How Degraded Aftertreatment Systems Waste Fuel
Questar analyzed a large mixed-class fleet and discovered it was wasting as much as $30 in fuel per vehicle, per day, because of mechanically degraded aftertreatment systems.
Read More →
Mack, Volvo Issue ‘Do Not Drive’ Recall on Possible Wheel-Offs
Owners will be sent advance notice not to operate their affected vehicles until the remedy is performed.
Read More →
Why Fleet Data Matters More Than Ever at Waste Connections [Watch]
Waste Connections' Chuck Palmer explains how telematics, predictive maintenance, safety analytics, and AI help keep vehicles on the road and drivers safe in this episode of HDT Talks Trucking.
Read More →
How to Prevent Summer Truck Cooling System Failures
Summer heat puts heavy-duty truck cooling systems under intense strain. Learn how preventive maintenance and accurate repair information can help reduce downtime.
Read More →
Deadline Extended for HDT Truck Fleet Innovators Nominations
Heavy Duty Trucking has extended the deadline for nominations for its Truck Fleet Innovators awards. The deadline has been extended to May 22.
Read More →
Why VMRS Is the Natural Link Between AI, Predictive Analytics, and Vehicle Repairs [Commentary]
Jon White was a leading figure in the development of VMRS. Now, after five decades of service, White says VMRS is becoming essential to the AI-driven future of truck maintenance.
Read More →
Mack Trucks Revamps PartsASIST Platform with Faster Performance, Improved Navigation
Mack Trucks has launched a redesigned version of its PartsASIST online ordering platform, adding faster search, real-time inventory visibility and enhanced order tracking.
Read More →
International Debuts ‘My International’ Connected Platform to Centralize Fleet Data, Service, and Dealer Communication
International’s New digital ecosystem unifies telematics, maintenance, and dealer interaction into a single interface, aiming to reduce downtime and deliver predictive fleet insights.
Read More →
Saving Fuel at the Wheel End
Wheel ends are often overlooked in the quest for better fuel economy. But Joshua Kucera, product manager, Stemco, warns that neglecting wheel ends can reduce fuel economy and increase maintenance headaches.
Read More →

