How to Keep Windows From Icing

Store your vehicle indoors to avoid the water vapor that creates icing altogether. If an enclosed garage is unavailable, use a covered carport for partial protection from all but the worst humidity. Use any structure available, as the more coverage you get on the top and sides, the less icing your car windows will experience.

Cover a completely exposed car with a car tarp. Purchase a tarp sized for your vehicle, making sure that if you’re using a pre-shaped tarp that the front of the tarp is actually placed on the front of your car to ensure a snug fit. The tarp will cover the windows, helping to prevent the collection of moisture that leads to icing.

Cover the windows with a mixture of three parts vinegar and one part water. Place the mix into a spray bottle and spray the windows just after parking your car for what will be an extended period of time -- several hours or more. Respray the windows twice daily if not using the vehicle -- once in the morning and once at night -- to prevent moisture buildup and eventual icing.

Cover the window with a commercial ice-prevention solution upon parking your car to prevent the ice from collecting on the windows. Spray the solution onto the window when you exit the car, covering the window with a light layer of the liquid. Reapply every 24 hours, or as often as directed by the manufacturer, to continue the protection from icing.