
Lights & Wiring Repair
Working lights are a safety and compliance requirement. Lighting repair finds failed bulbs, connectors and wiring so the truck can be legally and safely driven.
- AvailabilityCalls and messages 24/7
- WhereRoadside, yard or jobsite
- CategoryHeavy-Duty Truck Repair
- On-site repairWhere feasible and safe
About lights & wiring repair.
Working lights are a safety and compliance requirement. Lighting repair finds failed bulbs, connectors and wiring so the truck can be legally and safely driven.
A mobile mechanic can look at the unit where it stands, whether that is the roadside, a yard or a jobsite. That can avoid a tow and shorten downtime when the fault is suited to on-site work.
Part of Heavy-Duty Truck Repair.

When you might need it.
Any of these is a good reason to call and describe what the unit is doing.
Lights out or flickering
Turn signals not working
Blown fuses
Corroded sockets

What the service involves.
Testing circuits and grounds
Replacing bulbs, lamps and connectors
Repairing damaged wiring
Verifying all lights
Causes and good habits.
These are possibilities, not a diagnosis. The only way to know is to test the unit.
Possible causes
- Failed bulbs or corroded sockets
- Damaged wiring and bad grounds
- Blown fuses from shorts
Practical tips
- Check all lights on each pre-trip inspection
- Protect connectors with dielectric grease

What to expect.
Persistent faults may reveal deeper wiring damage.
On-site repair depends on the fault, parts, vehicle condition, safety and service feasibility.
(437) 601-8551Before you call
- Exact location, and direction of travel on a highway
- Truck or trailer type, make and year if known
- What happened and what warnings you see
- Whether the unit is somewhere safe
- A number we can call back
From the first call to the fix.
Call or message
Tell us where the unit is.
Describe the fault
Symptoms, lights, noises, leaks.
Agree the plan
Feasibility and dispatch, discussed honestly.
Diagnose and repair
On site where it is possible and safe.
Services that often go together.

Electrical Wiring Repair
Intermittent faults and dead circuits are often wiring problems: chafed harnesses, corroded connectors or loose grounds.

Trailer Lights & Wiring
Trailer lighting is required for safe, legal operation.

Electrical Troubleshooting
Electrical faults can be maddening.

Trailer Electrical Repair
Trailer electrical faults affect lighting, ABS and auxiliary systems.
Frequently asked questions.
Can you fix lights on the roadside?
Usually, since most lighting faults are minor.
How do I request this service?
Call (437) 601-8551 or message us on WhatsApp with your location and the issue. For non-urgent work, use the contact form.
Can every repair be done on site?
No. It depends on the fault, parts, vehicle condition, safety and feasibility.
Stranded on the Road? Let's Talk.
Tell us where your truck or trailer is located and what happened. Contact Fellows to discuss mobile repair options and next steps.
(437) 601-8551Have ready: exact location, truck or trailer type, what happened or what warnings you see, whether the unit is somewhere safe, and a callback number. Timing, dispatch and on-site repair depend on location, availability, the fault, parts and safety.