The Dos and Don'ts For Defrosting Your Car's Windshield

Sep 9, 2022
Car Window Maintenance

During the cold winter months, one of the most critical aspects of driving is ensuring clear visibility through your car's windshield. Properly defrosting your windshield is not only essential for your safety but also required by law. The Power Window Doctors are here to provide you with valuable tips to help you defrost your car's windshield effectively and safely.

Understanding the Science Behind Defrosting

Before we dive into the dos and don'ts of defrosting your car's windshield, let's understand the science behind it. When your car's windshield is covered in ice or frost, it obstructs your view and makes driving unsafe. Defrosting using the right techniques helps you remove the ice and frost, ensuring clear visibility and a safer driving experience.

Do: Use the Right Tools for Defrosting

When it comes to defrosting your car's windshield, using the right tools can make a significant difference. We recommend the following tools to aid in the defrosting process:

  • An ice scraper with a brush
  • A high-quality windshield de-icer spray
  • A microfiber cloth or soft towel

Using an ice scraper with a brush allows you to remove the ice quickly, while a windshield de-icer spray helps melt the ice and frost effectively. Finish off by wiping away any remaining moisture with a microfiber cloth or soft towel.

Don't: Use Hot Water

While using hot water to defrost your windshield might seem like a quick solution, it can cause more harm than good. Rapid temperature changes can lead to cracks or even shattering of your windshield. Additionally, pouring hot water in freezing temperatures can create a dangerous situation by causing the water to freeze on contact with the cold surface.

Do: Allow Enough Time for Defrosting

Defrosting your car's windshield requires patience and time. It's crucial to start the defrosting process early, especially on those cold mornings. Allow at least 10-15 minutes for the ice and frost to melt properly. This will give you enough time to clear all windows, ensuring maximum visibility before starting your journey.

Don't: Use Your Windshield Wipers to Remove Ice

Your windshield wipers are not designed to tackle thick ice. Using them to remove ice can damage the wiper blades or even cause them to break. Instead, use an ice scraper to carefully remove the ice. Once the ice is cleared, you can make use of your wipers to maintain a clear view during your drive.

Do: Defrost from the Inside-Out

It's essential to defrost your car's windshield from the inside-out for the best results. Start the defrosting process by turning on your car's engine and cranking up the heat. Set the fan speed to maximum and select the defrost mode. This will help warm up the interior of your car and gradually melt the ice on the windshield.

Avoid using just your windshield wipers to clear the frost from the outside. This may only move the ice around and result in reduced visibility. Allow the warm air from the interior to gradually thaw the ice, ensuring a more effective defrosting process.

Don't: Neglect Your Side and Rear Windows

While your windshield is the most crucial window to defrost, don't forget about your side and rear windows. These windows also need proper defrosting to ensure clear visibility from all angles. Use the same techniques mentioned earlier to defrost these windows effectively.


By following these dos and don'ts for defrosting your car's windshield, you'll ensure clear visibility and a safer driving experience during the cold winter months. Remember to always use the right tools, allow enough time for defrosting, and defrost from the inside-out. Prioritize your safety and enjoy hassle-free winter driving with the help of The Power Window Doctors.