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

What Three Fleets Are Doing Differently When Buying Truck Parts in 2026
With freight improving but costs still climbing, fleet maintenance executives explain how they're balancing price, quality, and supplier relationships.
Read More →
Paccar Recalls 2027 Trucks Built This Summer for Possible Electrical Problem
The nearly 6,000 Kenworth and Peterbilt trucks in the recall could potentially lose engine power, among other things.
Read More →
Will API PC-12 Oil Change Trucking Fleet Maintenance?
The new API PC-12 heavy-duty engine oil category reflects the changing demands of modern diesel engines. But fleets like Foodliner are looking to getting their own data before making decisions on adopting the new oils and questions such as extending oil drain intervals.
Read More →
Brake Safety Week to Focus on Drums and Rotors
Commercial vehicle inspectors will be focusing on brakes during CVSA's Brake Safety Week, August 23-29.
Read More →
Possible Battery-Cable Fires Prompt Recall of 15,000+ International MV and HV Trucks
On the recalled vehicles, manufacturing variations can cause the battery interconnect cable to contact the auxiliary stud and hold down the bracket.
Read More →
Rush, MCT Team Up to Grow Refrigeration Service Network
The joint venture will operate MCT's network of Carrier Transicold dealerships and mobile service locations, with the companies promising greater service capacity and uptime for refrigerated fleets.
Read More →
ConMet Expands Aftermarket Brake Drum Lineup With TruCast
A new heavy-duty truck brake drum option in the aftermarket gives customers more flexibility within the ConMet product family.
Read More →
Mack Expands Premium Service Contract Coverage to Medium-Duty MD
With a service contract, inspections, preventive maintenance and repairs can be handled in a single visit instead of multiple ones.
Read More →
Maintenance in the Messy Middle Part 5: Battery-Electric Trucks
No oil changes. No diesel exhaust fluid. No exhaust aftertreatment. But NACFE battery-electric trucks still require specialized maintenance procedures.
Read More →
Trucking Fleets Faced Record Operating Costs During Third Year of Freight Recession
ATRI's annual operational cost report shows carriers trimmed fleets, delayed equipment purchases, and ran older trucks as expenses continued to outpace freight rates.
Read More →
