McCoy & Hiestand Attorneys at Law
defrosting winter driving

It’s important to be able to fully see out of each of your windows before beginning to drive anywhere. Leaving ice or fog on your windows can lead to additional blind spots and increasing the risk of an accident. Along with decreased visibility there’s also the possibility of snow and ice falling off your vehicle while driving and causing a road hazard for other drivers.

Defrosting – What Not to Do

Along with the additional road hazards winter creates, it also covers your windshield with frost that must be removed before driving. Frost removal is simple, use the defroster in your vehicle and scrape off any excess ice or snow. What might not be as clear is what you shouldn’t do to defrost your windshield.

  • Do not pour hot water on your vehicle to melt the ice
    • This could cause the glass or plastic to crack
  • Do not try to use your windshield wipers before they are free of snow and ice
    • This could damage the wiper springs or motor

Defrosting your windshield and windows is a quick and necessary step to avoiding safety issues while driving.

Foggy Windshields – Causes & Solutions

Windows can fog up in your vehicle due to differences in temperature and moisture in the air. When you enter your vehicle your breath or hot cup of coffee coming in contact with the cold windshield will cause it to fog. When the warm, moist air comes in contact with a cold surface it condenses on that cold surface, reducing visibility.

Your first instinct might be to wipe down the windshield as a quick solution but that’s not your best option. The quickest, but possibly most unpleasant solution would be to roll down your windows. This will allow the cold dry air to replace the warm humid air you brought into your vehicle.

The more popular solution would be to turn your vehicle’s heat on full blast. Direct that heat at your windshield and windows in order to warm up the glass and reduce the temperature difference. It’s also helpful to turn on your air conditioning, not to alter the temperature but to be used as a dehumidifier. Regardless of hot or cold, do not use the “recirculation” setting as it will simply move the moist air around, doing nothing to reduce the fog.

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