How Technician Shortages Are Reshaping Fleet Maintenance

The U.S. Bureau of Labor Statistics projects approximately 26,500 openings for diesel service technicians and mechanics each year from 2024 through 2034. Most of those openings are expected to result from workers changing occupations or leaving the labor force, including retirement. [1]

The same pressure appears across automotive service occupations. BLS projects about 70,000 openings per year for automotive service technicians and mechanics over the same period, with many of those openings also tied to replacement needs rather than rapid industry growth. [2]

Those are national numbers, but the impact is local.

A school district does not need 26,500 diesel technicians. It may need two and still struggle to find them. A municipal fleet may have authorized positions that remain open for months. A private fleet may fill a vacancy only after adjusting wages, lowering experience requirements, or hiring someone who still needs significant development.

At the same time, the vehicles entering fleet shops are not becoming simpler.

Modern operations may include diesel, gasoline, propane, compressed natural gas, hybrid, and battery-electric vehicles. Technicians may also need to understand advanced emissions controls, multiplex wiring, telematics, camera systems, driver-assistance technology, charging equipment, high-voltage safety, and computerized diagnostics.

The labor challenge is therefore not only about numbers. Fleets need people with the right mix of mechanical ability, electrical knowledge, diagnostic judgment, digital skills, safety awareness, and willingness to keep learning.

A vacancy is easy to count. Lost capability is harder to measure.

Two shops may each be missing one employee, but the effect can be very different. One may have lost an entry-level technician who handled inspections and basic services. The other may have lost the only person capable of resolving difficult electrical issues or supporting a particular propulsion system.

Headcount does not reveal which skills disappeared.

Fleet managers should evaluate staffing in terms of productive capacity: which work can the present team complete without assistance; which jobs depend on one employee; which vehicles are waiting because the correct skill is unavailable; which technicians are constantly interrupted to support others; how much time is being spent on diagnosis, parts research, approvals, or vendor coordination; and which services are delayed even though the shop appears busy.

This explains why an operation can appear fully staffed on paper and still experience recurring backlogs.

Experience also affects output. A seasoned technician may diagnose an issue in one hour that takes a developing employee most of the day. That does not make the newer employee unsuccessful. It means management must account for training, supervision, and the difference between filling a position and restoring the full capability once associated with that position.

Skilled labor is one of the fleet's most limited operating resources. It cannot be stored for later, and it cannot always be replaced quickly when demand rises.

How that labor is allocated becomes an asset-management decision, not merely a shop-scheduling decision. Every technician hour carries an opportunity cost because assigning labor to one task necessarily delays another.

The practical priority is to reserve skilled internal labor for work that depends on vehicle-specific knowledge, immediate availability, or core mechanical expertise. That does not make other work unimportant. It makes the method and timing of that work more consequential.

Consider a shop with enough technician capacity to complete inspections, brake work, electrical diagnosis, and scheduled service, but little margin beyond those responsibilities.

A vehicle with early coating failure or localized corrosion may remain operational and repeatedly fall below more urgent work. Months later, the same vehicle may require broader disassembly, repair, preparation, and refinishing.

The work was never eliminated. It was converted into a larger demand on the same limited labor pool.

When labor is tight, preventive maintenance is sometimes treated as work that can be delayed while the shop responds to immediate failures.

Safety repairs cannot be deferred indefinitely. Preventable deterioration often can. The problem is that deferred preventive work eventually returns as corrective work, usually requiring more labor at the least convenient time.

The work does not disappear when it is postponed. It changes form, grows in scope, or reenters the schedule after the fleet has lost the least disruptive opportunity to address it.

That approach may ease pressure temporarily, but it often creates more uncontrolled work later.

Preventive maintenance gives the shop a chance to identify concerns while the vehicle is already scheduled, the service can be planned, and parts can be prepared in advance. Unscheduled failures arrive on their own schedule. They may require towing, road calls, substitute vehicles, route changes, emergency parts, overtime, or customer communication.

Under staffing pressure, preventive maintenance becomes more than a routine compliance activity. It becomes a labor-preservation strategy.

A repair avoided through inspection, cleaning, lubrication, protection, correction, or timely replacement preserves future shop capacity. The value is not limited to the immediate condition of the vehicle. It also reduces the likelihood that the same asset will return later with a more disruptive and labor-intensive failure.

Preventive maintenance protects more than the vehicle. It protects future technician capacity. Every failure avoided preserves labor for work that could not reasonably have been prevented.

The answer is not to perform less maintenance without distinction. The answer is to identify which preventive work provides the most value.

Inspection checklists should reflect actual failure patterns. Service intervals should account for duty cycle, idle time, route conditions, engine hours, mileage, and manufacturer guidance. Repeat defects should be tracked. Technicians should have access to useful maintenance history before work begins.

Preparation becomes especially important when skilled labor is limited.

A technician should not lose productive time because a vehicle was brought into the bay without the right parts, complete defect information, repair authorization, or prior history.

A shop with excess capacity can handle some work in the order it arrives. A short-staffed shop cannot afford that approach.

Fleet leaders need a clear way to rank work. A practical hierarchy may begin with: safety and regulatory compliance; vehicles needed for immediate operations; preventive maintenance that is due or approaching its limit; defects likely to create larger failures if delayed; repairs that return unavailable vehicles to service; recurring reliability concerns; and noncritical work that can be scheduled separately.

This does not mean appearance, comfort, body work, cleaning, or preservation are unimportant. It means they should not compete blindly with brake repairs, inspections, cooling problems, electrical failures, or vehicles required for the next route.

The better approach is to build a separate plan for work the shop cannot absorb. Some services can be scheduled during seasonal slow periods. Some can be grouped and assigned to qualified vendors. Others can be handled by support employees or mobile providers without tying up a mechanical bay or a senior technician.

A technician shortage forces the fleet to distinguish between work that matters and work that must be performed by its own technicians.

A fleet operating in permanent triage may continue meeting immediate safety requirements while gradually losing control of lower-priority asset condition.

The shop remains busy, but the maintenance system becomes increasingly reactive. Work is selected according to the urgency of the current failure rather than the long-term needs of the fleet.

Activity is not the same as control.

The most experienced employee in the shop should not automatically receive every difficult vehicle.

That practice may solve one problem at a time, but it can also turn the senior technician into a permanent bottleneck.

Experienced employees create more value when they improve the performance of the entire operation. Their work may include diagnosing difficult cases; verifying repair direction before expensive parts are ordered; mentoring newer employees; reviewing repeat failures; documenting useful procedures; performing quality checks; supporting specifications and procurement; identifying training gaps; and transferring institutional knowledge before retirement.

This requires protecting part of their time.

If the fleet's best diagnostician is continuously assigned basic preventive maintenance because the schedule is overloaded, the operation may complete a few routine jobs while allowing more difficult work to accumulate.

Informal mentoring creates a similar challenge. Senior technicians are often expected to answer questions, solve problems, and coach others while still being measured against the same individual production expectations.

That makes mentoring feel like a penalty.

Training time should be planned and recognized as productive work because the goal is not only to complete today's repair. It is to build tomorrow's capability.

Many fleets say they are willing to hire entry-level technicians. Fewer have built an operation capable of developing them well.

An entry-level employee may arrive with classroom knowledge, mechanical interest, or experience performing basic services. That person still needs time to learn the fleet's vehicles, safety rules, documentation standards, diagnostic systems, tools, procedures, and expectations.

The Bureau of Labor Statistics reported that on-the-job training was required for 76.5 percent of workers in installation, maintenance, and repair occupations in 2025. [3]

That finding reinforces an important point. The labor market does not consistently provide fully developed technicians who can perform every required task on the first day.

A fleet that expects otherwise may continue losing new employees and conclude that qualified people no longer exist. In reality, the organization may be hiring trainees and managing them as if they were finished technicians.

Development should be structured.

A progression may begin with inspections, lubrication, tires, batteries, fluid services, and basic preventive maintenance. It can then advance into brakes, steering, suspension, cooling systems, electrical testing, emissions equipment, diagnostics, alternative fuels, and more complex repairs.

Employees should know what skills lead to greater responsibility, higher pay, certification support, and advancement.

Without that path, a fleet may invest enough in a new employee to make that person attractive to another employer, but not enough to create a reason to stay.

Waiting for experienced technicians to appear may no longer be a complete staffing strategy.

Registered apprenticeship offers a more deliberate approach. It combines paid work, mentoring, related instruction, progressive wages, and a recognized credential.

The model requires planning. A fleet must identify mentors, define a training path, document progress, and provide meaningful wage advancement. It is not a quick answer to an immediate vacancy.

Its value is that it turns recruiting into workforce development.

Fleets can also build relationships with high school automotive and diesel programs; technical colleges; community colleges; military transition programs; workforce development boards; vocational rehabilitation programs; local industry advisory committees; and pre-apprenticeship organizations.

The strongest partnerships extend beyond attending a career fair once a year.

Fleet representatives can serve on advisory boards, provide components or vehicles for training, host job-shadowing, offer internships, speak with students, and explain the range of career paths available in modern fleet operations.

Young people cannot pursue a career they have never had the opportunity to understand.

A fleet that pays far below the local market will have difficulty recruiting and retaining technicians, regardless of mission, culture, or benefits.

Recruitment remains essential, but hiring alone does not resolve the full capacity problem. Fleets also need stronger prioritization, better documentation, preventive maintenance, technician retention, selective outsourcing, standardized processes, and more deliberate protection of asset condition.

These measures do not replace skilled technicians. They reduce the amount of preventable work competing for the limited skilled labor available.

Public fleets may face additional obstacles because classifications, wage schedules, and approval processes often change more slowly than the private labor market.

Still, compensation is only part of the employment decision.

Technicians also consider health and retirement benefits; schedule stability; overtime requirements; tool allowances; uniforms and protective equipment; paid training; facility condition; available diagnostic equipment; leadership quality; workload; promotion opportunities; respect for the trade; job security; and whether the organization invests in its people.

A predictable schedule may appeal to a technician leaving a dealership or commercial operation. A retirement plan may carry significant value for another applicant. Paid certifications and a clear promotion path may matter more to someone early in a career.

The fleet should understand its real advantages and communicate them clearly.

Many job postings read like purchasing specifications. They list duties, certifications, minimum experience, and physical requirements, but say very little about the work environment, equipment, training, schedule, mission, or future.

Recruitment is partly a human resources process, but it is also a marketing function.

Recruiting receives attention because an empty position is visible. Retention problems may remain hidden until a strong employee gives notice.

Technicians leave for familiar reasons: better pay, improved leadership, stronger schedules, newer facilities, more training, reduced stress, or a clearer future.

Exit interviews can be useful, but they happen too late to save the relationship.

Fleet managers should conduct regular stay conversations with current employees.

Questions may include: What makes your job harder than it should be? Which tools or information are missing? Where does the work-order process break down? What training would improve your capability? Which responsibilities are unclear? What would make you consider leaving? What type of work would you like to learn? Do you see a future for yourself here?

The answers may reveal issues that cost far less to correct than another hiring cycle.

Retention also depends on whether good work is noticed. A technician who solves difficult problems, mentors others, completes training, or improves a process should see that effort reflected in responsibility, recognition, and advancement.

A fleet cannot say technicians are difficult to replace while treating its strongest employees as interchangeable.

The departure of an experienced technician removes more than a pair of hands. It can remove years of diagnostic memory, familiarity with recurring vehicle problems, and informal knowledge that may never have been fully documented.

That knowledge may include the history of individual assets, recurring fault patterns, previous repairs, operational habits, and practical methods developed through experience.

Fleets responding to workforce shortages must therefore protect knowledge as deliberately as they protect labor capacity. Documentation, standardized inspection practices, mentoring, cross-training, and accessible maintenance history reduce the amount of operational knowledge tied to a single employee.

Outsourcing is not necessarily a substitute for internal capability. Used strategically, it allows a fleet to reserve internal technicians for work that depends on vehicle-specific knowledge, immediate availability, or core mechanical expertise.

Specialized or labor-intensive services may be assigned externally when a qualified provider can perform them efficiently without weakening internal control of safety, reliability, inspection, or maintenance planning.

The purpose is not to send work away indiscriminately. It is to protect internal labor capacity for the responsibilities where that capacity creates the greatest operational value.

Potential outsourcing candidates may include body and paint work; glass replacement; alignments; transmission rebuilding; specialty fabrication; graphics installation; advanced component rebuilding; warranty repairs; mobile tire service; selected overflow maintenance; exterior restoration; protective coatings; and other services requiring specialized equipment or infrequently used expertise.

The right answer depends on fleet size, facilities, geography, vehicle mix, staff capability, and vendor availability.

Outsourcing also creates management work. Someone still has to schedule the service, prepare the vehicle, approve additional repairs, monitor progress, process invoices, verify quality, and return the asset to service.

A poor vendor can create more administrative work than the shop saved.

The strongest fleets build a managed vendor network before the backlog becomes critical. They know which providers handle each service, what turnaround time is realistic, which vehicles receive priority, what documentation is required, and who is responsible when the result is not acceptable.

Fleet software, telematics, mobile work orders, remote diagnostics, electronic inspections, and predictive tools can improve maintenance productivity.

Technology and standardized processes can improve consistency, visibility, and technician efficiency, but they do not create unlimited labor. Their value lies in reducing wasted motion, repeated diagnosis, incomplete records, avoidable rework, and unclear priorities.

They can also become another source of wasted time if the data is incomplete, systems do not communicate, or technicians are forced to repeat the same information in multiple places.

Technology should answer practical questions: Which vehicles need attention first? Which services are overdue? Which defects keep returning? Which parts should be staged before the vehicle arrives? How long has each asset been unavailable? What work is waiting for approval? Which failures could have been found earlier? Where is technician time being lost?

The system should provide useful information at the point of work.

A technician should be able to access prior repairs, fault information, service procedures, parts details, and maintenance history without repeatedly leaving the bay.

Supervisors should be able to identify workload and bottlenecks without interrupting technicians for constant updates.

Technology is most valuable when it reduces nonproductive time. It is least valuable when employees spend more time feeding the system than using it.

Electrification does not eliminate the need for fleet technicians. It changes the work.

Battery-electric vehicles still require tires, steering, suspension, brakes, body systems, doors, low-voltage systems, thermal management, accessibility equipment, and inspections.

They also introduce high-voltage components, charging systems, battery diagnostics, software, and specialized safety procedures.

The Bureau of Labor Statistics notes that automotive technicians increasingly work with electronic systems, sensors, computerized diagnostics, regenerative braking, electric motors, and battery performance. [2]

Industry certification organizations have also developed high-voltage safety standards and credentialing paths for personnel who work around electrified vehicles. [4]

The lesson extends beyond electric vehicles.

Every new emissions platform, camera system, telematics device, driver-assistance feature, alternative fuel, and software update creates a support obligation.

Vehicle procurement should therefore include workforce questions: Who will maintain the equipment? What training is required? Who pays for that training? How long will it take? Which repairs must remain with the manufacturer? What protective equipment is needed? Will the facility require changes? Are current job classifications appropriate? How will knowledge be shared across locations and shifts?

Buying the vehicle is only the beginning. A fleet that does not prepare its people may acquire technology it cannot support efficiently.

A growing backlog often leads to a request for another technician position. Sometimes that is exactly what the fleet needs.

In other cases, the operation may benefit more from adding support around the technicians already employed.

A parts specialist can reduce time spent locating and ordering materials. A service writer can improve scheduling, work-order quality, and communication. A shop assistant can move vehicles, stage parts, clean work areas, and support basic services. A training coordinator can accelerate development across a larger operation.

Adding support may increase wrench time without adding another senior technician.

The correct staffing model depends on where labor is actually being lost.

If technicians spend hours each week locating inventory, moving vehicles, cleaning bays, correcting paperwork, or waiting for authorization, the operation may not have only a technician shortage. It may also have a workflow problem.

Labor pressure often leads managers to focus heavily on technician productivity. Measurement is necessary, but it must be handled with care.

Repair work is not uniform.

One preventive service may proceed exactly as expected. Another may reveal a safety concern, wiring damage, fluid leak, or failing component. A difficult diagnostic case may consume several hours without producing a long list of installed parts.

A system that rewards only completed labor hours can encourage employees to avoid difficult work, rush inspections, or postpone issues that do not fit neatly into a schedule.

Useful performance measurement considers completed work; quality; repeat repairs; safety; documentation; diagnostic difficulty; mentoring; training; vehicle availability; scheduled versus unscheduled work; and communication with operators and supervisors.

The goal is not to make technicians work faster at any cost.

The goal is to remove the obstacles that prevent skilled employees from working effectively.