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Commercial Service Request · DFW & North Texas

Contact Lonestar Diesel

Call for an urgent commercial truck breakdown or submit the service request form for mobile repair, diagnostics, maintenance, fleet support, and planned heavy-duty service.

Lonestar Diesel technicians testing the electrical system on a blue tractor-trailer beside Interstate 635 in Dallas at night.

Information That Helps Start the Response

Provide the exact address, facility, direction of travel, nearest exit or cross street, and whether the truck is in a safe and accessible location. Include the vehicle type, unit information, warning lights, visible leaks, unusual sounds, recent repairs, symptoms, and urgency.

Do not use the form for an immediate roadway hazard. Contact the appropriate emergency authority first when the disabled vehicle creates danger to the driver or other road users. A submitted form is not a dispatch guarantee.

Request Commercial Diesel Service

Frequently Asked Questions

Should I call or use the service request form?

Call for an urgent commercial breakdown. Use the form for planned maintenance, fleet support, diagnostic follow-up, inspection-related repairs, and non-emergency commercial service requests.

What location information should I provide?

Provide the exact address or map location, facility or yard name, gate instructions, direction of travel, nearest exit or cross street, access conditions, and whether the truck is safely outside active traffic.

Which commercial vehicles can request service?

Requests may involve semi trucks, tractor-trailers, box trucks, straight trucks, trailers, fleet vehicles, and other Class 6 through Class 8 commercial diesel equipment.

Can fleet managers request service for multiple units?

Yes. Include the number and types of vehicles, unit identifiers, service priorities, known defects, preferred schedule, and a fleet contact who can authorize or coordinate work.

Commercial Service Area Map

Verified Google map: This embedded map is connected to the Lonestar Diesel Google Maps entity. Service availability still depends on the exact truck location, direction of travel, access conditions, repair scope, and dispatch capacity.

Dieseltron, the Lonestar Diesel service guide
DieseltronCommercial Service Guide

Dieseltron Service Navigator

What Is the Truck Doing?

Choose the closest symptom. This guide recommends a service path; it does not diagnose the truck.

Want Road-Ready Tips?

Get maintenance guidance, new resources, and service announcements from Lonestar Diesel.

Road-Ready email updates are being configured. Please check back soon or call (469) 781-2069 for commercial service.

If there is an immediate safety risk, move to a safe location when possible and call for professional assistance.

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