UK drivers warned of fines for car heater mistake in winter

Insurance specialists at Tiger.co.uk warned that vehicle heating systems contribute to driver fatigue.

Running a heater for a long time raises body temperature and lowers oxygen levels inside a car, reducing reaction times and concentration.

While The Highway Code contains no specific offence for driving while drowsy, motorists can be prosecuted for careless or dangerous driving.

Penalties include an unlimited fine and three to 11 penalty points.

Police cannot test drivers for fatigue as they can for drink or drug offences, meaning incidents remain under-reported.

Fatigue is estimated to cause between 10% and 20% of all road crashes worldwide.

Drowsiness impairs reflexes and decision-making just as much as driving under the influence of alcohol.

Ian Wilson, Managing Director and car insurance expert at Tiger.co.uk, said: “As we head into the colder months, many of us blast on the heating as soon as we get into the car, to help combat the chill, but too much heat, especially with the air recirculating, can make you feel drowsy far quicker than you realise.

“It might feel cosy, but that warm, still air can reduce oxygen levels and slow your reflexes, which is dangerous behind the wheel.

“Keeping the temperature balanced, cracking a window for ventilation, and taking breaks on longer journeys are simple ways to help stay alert and safe.”

Motorists are urged to keep cabin temperatures between 19°C and 22°C so it is comfortable without causing sleepiness.

Ventilation systems should circulate fresh air through the car rather than relying on air recirculation.

Running the air conditioning for a few minutes can reduce humidity and improve airflow to stop cabins feeling stuffy.

Drivers can also open windows slightly to let in fresh air and maintain oxygen levels.

Motorists are advised to wear several thinner layers of clothing instead of a bulky coat.

Thick jackets can restrict movement and interfere with seatbelts during a collision.

Taking regular breaks on longer journeys allows drivers to stretch, get fresh air and reset focus.