Frozen Door Locks
There are a couple ways to quickly unfreeze your lock so you can get in your car. One trick: heat your car key with a match or lighter, then gently push the heated key into the lock to melt the ice as you apply pressure. Another option is to take a regular drinking straw and blow directly onto the frozen lock. The heat from your breath should melt the ice in no time.
Another way to prevent frozen locks is to dip your key into Vaseline, put it into the lock, and turn the lock back and forth a few times. Repeat this to make sure the Vaseline is well-distributed onto the parts of the lock. This method should be done once a week during winter months.
Frozen Car Door
You can prevent your door from freezing shut by spraying the door frame with spray cooking lubricant like Pam. If you have not treated the doors and find them frozen shut, try these steps to unfreeze them. First, try all of the doors, including the hatch, to find the one least frozen. Do not try to force a frozen door open. This can damage the seal around the door. Next, while wearing gloves, hit the ice with the palms of your hands, and remove the ice as it breaks.
To quickly clear fog without leaving a smudgy mess behind, keep a chalkboard eraser in your car. Alternatively, rolling down the window and letting some fresh air in will quickly defog windows.
Icy side mirrors
To prevent ice from forming on side mirrors, cover them the night before with plastic bags secured with rubber bands or clothespins. When you remove the bags in the morning, the mirrors will be ice-free.
Some tips for icy winter
Use a plastic scraper intended for ice removal. Do not use metal because it will scratch car windows. A plastic spatula or sturdy plastic tumbler works if an ice scraper is not available.
Mix 3/4-cup white vinegar with 1/4-cup room temperature water in a spray bottle. Spray the mixture onto icy car windows. Scrape the melting ice off the windows with an ice scraper.
Spray the windows with a canned de-icer, which has an active ingredient of polypropylene glycol, a derivative of ethylene oxide. Allow the glycol to melt the ice, which is almost immediate. Push the slush off the windows with a squeegee.
Mix 3/4-cup isopropyl alcohol with 1/4-cup room temperature water in a spray bottle. Spray the ice liberally with the mixture. Allow the mixture to sit for two to three minutes. Spray the windows again with the mixture and scrape away melting ice build-up.
Pick windshield wipers up and off your windshield every time you get out of the car to prevent the wipers from freezing to your windshield.
Never drive a car until all windows are clear of ice or any other obstruction.