Vehicles certainly should not be driven until the defroster function has heated up enough to clear the windows; visibility is good. Further, a warm driver is likely to be safer than a driver bundled up in restrictive clothing, hunched against a miserable environment.
- Have a frozen windshield on your car? Fill a spray bottle with 3 parts water and 1 part white vinegar. Turn on car and defroster, then spray icy windshield. The thawing process will speed up and will keep your windshield frost-free for up to a few days!
- Are your car locks icy? Squirt hand sanitizer onto your car key. Place key into lock and slowly turn until unlocked.
- If you have ice on your windshield use onion! Cut up a large onion and rub it over the ice. You will see the ice just melt away. Your hands may be stink, but your windows will be clear. You may need a few but, it’s helpful and less stressful.
Power steering and braking fluids and transmission and lubrication oils are all more turgid at lower temperatures, and seals are less malleable, so warming up is not going to hurt. Those fluids also are susceptible to the law of gravity like everything else; they settle to the lowest points available to them overnight, and in really cold weather, they can take a while to become fully viscous again and be delivered to their points of use.
Don’t forget to read: 2 Easy Ways To Fight The Winter Blues