Drivers are only just realising what the demist button in the car is actually for

Importance Score: 55 / 100 🔵


Combat Car Windscreen Fogging This Season: Understanding Your Demist Buttons for Safe Driving

Despite the relatively mild weather across the UK, mornings can still be chilly, leading to a common issue for drivers. Whether you are undertaking the school run or commuting to work, you might have noticed your car windscreen becoming foggy as temperatures fluctuate.

Vehicles can feel particularly cold in the early hours, especially after being exposed to low temperatures overnight. Activating your car’s heating system is a frequent cause of windscreen fogging. However, condensation can also arise simply from body heat entering the car’s interior. Driving without a clear field of vision is illegal, with both front windscreens and rear windows susceptible to misting due to condensation. While slightly opening a window can offer some relief for both issues, vehicles are equipped with dedicated demisting controls.

Understanding Demist Controls: Crucial for Driver Safety

Many motorists are unaware of the essential differences between their car’s demist buttons. Improper use of these controls could lead to penalty points or fines up to £2,500. Driving with misted windows significantly impairs visibility, posing a risk to drivers, other vehicles, and pedestrians.

The Highway Code mandates that drivers maintain a clear view of the road at all times. Knowing how to correctly operate the demist buttons on your dashboard is not just about convenience but is critical for road safety.

Front Windscreen Demist Button: How It Works

The two demist buttons serve distinct purposes based on whether the front or rear window is affected by fog. To clear a foggy windscreen, drivers should use the button marked with a curved rectangle and three wavy lines passing through it.

This control engages the vehicle’s air conditioning system, directing warm, dry air onto the windscreen. This process effectively eliminates internal condensation and quickly clears the window for improved visibility.

Rear Window Demist Button: Function and Operation

In contrast, the rear demist button is identified by a rectangle symbol with three wavy lines inside. This button activates heating elements embedded within the rear window. These elements are designed to eliminate condensation or frost, particularly during colder periods.

Safety First: Proper Use of Demist Features

Misunderstanding and incorrect operation of these demist controls can result in persistent misted or foggy car windows. This issue drastically increases the likelihood of accidents due to reduced visibility.

Prioritizing safety, it is advisable for all drivers to thoroughly familiarize themselves with their vehicle’s controls. Regular maintenance of the vehicle’s heating and ventilation system is also essential to ensure effective demisting performance and prevent visibility problems.

Furthermore, dirt and grime accumulation on car windows can exacerbate condensation issues. Regularly cleaning your car windows will help ensure that the demisting systems function optimally, contributing to safer driving conditions.


🕐 Top News in the Last Hour By Importance Score

# Title 📊 i-Score
1 Meta whistleblower to testify after explosive memoir slamming Mark Zuckerberg was blocked 🟢 85 / 100
2 Chilling declassified CIA file reveals aliens committed 'revenge massacre' after UFO was shot down 🔴 78 / 100
3 Russian nuclear bomber crashes and explodes near village 🔴 78 / 100
4 Global markets in turmoil as Trump tariffs wipe £1.5tn off Wall Street 🔴 78 / 100
5 Another state is on red alert after detecting a new measles case 🔴 75 / 100
6 Trump’s Tariffs Don’t Apply to Chips, but Taiwan Remains Wary 🔴 75 / 100
7 Tom Cruise Breaks Silence on ‘Top Gun’ Costar Val Kilmer’s Death 🔴 65 / 100
8 A messed-up ‘Steamboat Willie’ horror film was shot on the Staten Island ferry Pete Davidson and Colin Jost bought 🔵 55 / 100
9 Bread for Dinner Recipes 🔵 45 / 100
10 Brits are ditching Easter eggs – and it's not for the reason you might think 🔵 45 / 100

View More Top News ➡️