Every autumn the same curve repeats: the clocks change, commuting moves into darkness, and the fleet’s lighting defect rate climbs through November. The pattern is so predictable it is plannable - yet many fleets meet it reactively, fixing bulbs as drivers report them. A structured autumn lighting campaign, run once a year before the dark months, costs a workshop day and buys a winter of fewer defects, prohibitions and test failures.
The arithmetic is simple: lighting defects exist all year, but summer hides them. Vehicles run long hours in daylight, the walkaround check happens in dawn light, and a dead side lamp goes unnoticed for weeks. Autumn removes the cover: suddenly every journey is a lighting test, every following police car an inspector, and the accumulated summer backlog of dead bulbs, dim lamps and dirty lenses surfaces at once - at roadside stops, where it prices as prohibitions and fixed penalties rather than workshop minutes.
The legal backdrop is the Road Vehicles Lighting Regulations 1989, which define the obligatory lamp set and when it must be lit: position lamps, headlamps, plate lamps, markers and reflectors, all required to work whenever the vehicle is used between sunset and sunrise or in seriously reduced visibility - which in a British winter describes most of the working day. The regulations do not recognise ‘the bulb went yesterday’; the vehicle is compliant or it is not, every journey.
The autumn lighting campaign is a single fleet-wide pass with five steps. First, the full survey: every tractor, rigid, trailer and van checked lamp by lamp against the legal set - not ‘lights working?’ but each obligatory lamp and reflector named, checked and recorded, in the dark or a darkened workshop where output and aim are actually visible. Second, the immediate rectification: bulbs, sealed units, connectors and lenses replaced on the spot from stock, because a survey that generates a defect list rather than fixes just schedules the roadside stop. Third, the cleaning standard: lenses, reflectors and marker boards cleaned and the wash routine adjusted for winter - road film in the dark months degrades lighting performance faster than bulb failure does. Fourth, the vulnerable points: the known killers - trailer plate lamps, rear clusters, corroded connectors, chafed trailer suzies - inspected and protected rather than merely checked. Fifth, the spares restock: bulb kits per vehicle topped up, workshop stocks of the common lamps and lens units replenished before the winter demand.
The documentation matters as much as the hardware: the campaign recorded vehicle by vehicle, defects closed out with dates, and the records filed with the maintenance system - because if winter brings a roadside encounter, the evidence of a systematic lighting regime is the difference between an examiner’s nod and a deeper look.
The campaign’s value decays without the winter discipline behind it: the walkaround check done with lights on and a walk to the rear, every shift, in the dark months when it actually shows something; defects reported and fixed same-day, with the culture that a dead lamp grounds the vehicle’s night work until fixed; and a mid-winter spot check - a January evening sampling of the fleet - to catch the drift between the autumn campaign and the spring. Fleets that run the routine find the pattern flattens: the November defect spike becomes a memory, and the annual test lighting sheet shortens accordingly.
Lighting law - the obligatory set from the 1989 regulations - applies hardest in the months fleets prepare for least. One autumn campaign: full survey, immediate fixes, cleaning standards, vulnerable points protected, spares stocked, everything recorded. Then hold the line with dark-month walkarounds and a January spot check. Winter is the lighting examiner; revise before the exam.
The campaign fails if it is a workshop-only exercise, because the winter’s lighting performance lives with the drivers. The briefing that goes with the autumn pass should cover three behaviours: the walkaround done with lamps on and a genuine rear walk - including the trailer, every trailer, every time; the defect culture that reports a dead lamp as a defect now, not at the end of the week; and the cleaning habit - the two minutes with the wash brush or a cloth on the rear cluster and plate lamp at fuel stops, which in a dirty January is the difference between legal and not. Drivers who understand that lighting is the examiner’s first read of the vehicle tend to keep the rear end honest.
Close the loop with the fleet’s own numbers: lighting defects on inspection sheets, lighting items on roadside encounters, lighting failures at annual test - pulled for the winter after each campaign and compared with the year before. The trend is the campaign’s report card and next autumn’s briefing material: a fleet that can say ‘lighting failures halved since we started this’ has a maintenance story that reads well to customers, insurers and examiners alike.
Fleets with agency and subcontract vehicles should extend the standard outward: the lighting expectation written into the agency brief and the subcontractor terms, because the operator’s name travels with the work whoever drives, and a subcontractor’s dead lamp at a shared customer site reads as the fleet’s problem.