A fleet preventive maintenance program has three parts: quick daily checks by drivers, scheduled service by mileage or engine hours, and one record per vehicle so nothing is missed or done twice. Get those right and most roadside breakdowns become planned shop visits instead.
When a van misses its route or a service truck misses a job, the repair bill is only part of the cost. Below is the checklist we use with fleet customers at CarNation Elite in Northeast Dallas, from owner-operators with two or three trucks to companies running 20 or more units.
Daily driver checklist (2 minutes)
- Walk around: tires look properly inflated, no visible damage or leaks under the vehicle
- Lights: headlights, brake lights, turn signals, hazards
- Warning lights on the dash after start-up
- Brakes feel firm; no pulling, grinding or new noises
- Mirrors, wipers and horn work
- Note anything unusual on the log, even small things
The last point matters most. Small notes like "slight squeal when braking" or "A/C weaker today" are how problems get caught at the $150 stage instead of the $1,500 stage.
Scheduled service checklist
| Interval | Service |
|---|---|
| Every oil change (per manufacturer severe-service interval) | Oil and filter, tire rotation and pressure, brake measurement, fluid levels, belts and hoses, lights, battery test, check for stored codes |
| Every 6 months | Full multi-point inspection, cabin and engine air filters, wiper blades, A/C performance check before summer |
| Every 12 months | Cooling system and hoses, suspension and steering, exhaust, safety inspection for commercial vehicles that require it |
| Every 2 years or 30,000 mi | Brake fluid flush |
| Per manufacturer schedule | Transmission fluid, coolant replacement, spark plugs, differential fluid, timing belt where fitted |
Most fleet vehicles qualify for the manufacturer's severe service schedule: heavy loads, towing, idling, stop-and-go routes and extreme heat. Use it.
Texas heat items to add to any fleet program
- Batteries: heat shortens battery life, often to 3 to 4 years. Test every battery at each service from year two.
- Cooling systems: check coolant, hoses and fans before June. Overheating in summer traffic is one of the most common fleet breakdowns.
- A/C: drivers in a hot cab are slower and less safe. Check A/C every spring.
- Tires: hot pavement and heavy loads raise blowout risk on underinflated tires. Check pressure weekly in summer.
- Transmission fluid: heat is the main cause of transmission failure on loaded vans and trucks.
How to cut fleet downtime
- One shop, one record per vehicle. When units are serviced at different places, nobody knows the full history.
- Stagger the schedule. Service vehicles on a rolling calendar so you're never down several at once.
- Book early drop-offs. Many services can be finished before the workday gets going.
- Fix small items at the next service, not "someday." Driver notes should turn into work orders.
- Track cost per vehicle. When one unit's repair costs keep climbing, it's time to plan its replacement.
What we offer fleets
We service mixed fleets of cars, vans, pickups and SUVs, including diesel vehicles. Fleet customers get priority for urgent repairs, per-vehicle service records, itemized per-vehicle billing and fleet accounts with regular billing. Call (214) 597-4922 to talk through your fleet size and schedule.
Frequently asked questions
How often should fleet vehicles be serviced?
Follow the manufacturer's severe-service interval for oil and inspections, since most fleet use counts as severe. For many vans and trucks that means an oil service and inspection every 5,000 to 7,500 miles, plus a fuller inspection every 6 months.
What should be on a fleet vehicle inspection checklist?
Tires and pressure, lights, brakes, fluid levels and leaks, belts and hoses, battery, wipers, mirrors, horn and dash warning lights, plus a driver note on anything unusual.
Do commercial vehicles still need inspections in Texas?
Yes. Texas ended annual safety inspections for personal vehicles in 2025, but commercial vehicles still need them, and emissions testing still applies in Dallas County.
Can you handle same-day fleet repairs?
We prioritize fleet vehicles for urgent repairs and often fit them in the same day. Call and tell us it's a fleet emergency.
Get a straight answer on your car
Describe what you're seeing and we'll tell you how urgent it is. Written quote before any work starts.
Book Appointment Call (214) 597-4922