Drivers have been given a "no excuses" warning over 'rule 113'. It is about a widespread error that could result in them motoring illegally after dark - and possibly putting others at risk.
In a firmly worded statement, authorities cautioned that many drivers are depending on daytime running lights - which can create a misleading impression of safety - rather than activating proper headlights. Significantly, while these forward-facing lights may seem sufficiently bright, they fail to light up the back of the car, leaving drivers practically invisible from the rear in low-light conditions.
The Driver and Vehicle Standards Agency (DVSA) has informed motorists in unambiguous language: "PUT YOUR LIGHTS ON AT NIGHT!"
What the law actually says
According to Rule 113 of the Highway Code, drivers face explicit legal obligations when motoring after nightfall. Motorists must guarantee sidelights and rear number plate lights are switched on between sunset and sunrise, and in most instances must also activate headlights during the hours of darkness.
The regulations define night as the period between half an hour following sunset and half an hour preceding sunrise - a specification many drivers disregard. Headlights are equally compulsory when visibility is severely compromised, such as during torrential rain, fog or snow.
Content cannot be displayed without consent
The concealed risk of modern vehicles
The DVSA warning draws attention to an escalating problem with more recent models, where automated lighting mechanisms and illuminated instrument panels can give drivers a false impression that their lights are operating at full capacity.
In truth, only daytime running lights might be functioning - leaving the vehicle's rear section in darkness.
This poses a significant hazard for fellow road users, especially on roads without street lighting or motorways, where vehicles approaching from the rear may fail to spot a car until it's dangerously close.
Fog lamps and glare hazards
The Highway Code also establishes stringent boundaries on light usage. Motorists must avoid using lights in ways that blind others, including those on foot, cyclists and equestrians.
Fog lamps, particularly, are commonly misapplied. These should only be activated when visibility is severely compromised - and deactivated immediately once conditions clear.
Article continues below
Drivers stationary in congestion are also encouraged to release the brake pedal once following vehicles have halted, preventing needless glare.
'No excuses'
The DVSA's stance is unambiguous: motorists cannot depend on technology exclusively. With lighting regulations supported by legislation, neglecting to employ correct lights after dark isn't merely negligent - it could place drivers in breach of the rules.