How to Deal with Fogging on the Inside of the Windshield in Summer?

[LaCecilia]

Methods to handle fogging on the inside of the windshield in summer: 1. For manual air conditioning, turn on the front window defogging mode, set the fan speed to maximum, turn on the AC switch, and then adjust the temperature to the lowest setting; 2. Some car models are equipped with rear window electric heating and external rearview mirrors—simply press the switch to activate them, and the fog will clear in about a minute; 3. For automatic air conditioning, usually just press the one-touch defrost button, after which the fan speed will automatically increase to maximum and the external circulation will activate; 4. Turn on the air conditioning to blow cold air toward the windshield, utilizing the dehumidification function. You can slightly open a window to quickly reduce humidity inside the cabin, which, when combined with the air conditioning, will yield faster results.

[MacMaya]

I'm quite familiar with the issue of fogging on the front windshield in summer. Having driven for over 30 years, I've encountered it frequently. Every summer when temperatures are high and humidity builds up inside the car, the glass fogs up. My experience is to first turn on the air conditioning, set it to AC mode, adjust the vents to blow directly at the windshield, and crank the fan speed to maximum. The fog clears in minutes because it blows dry air that removes moisture. Setting the temperature around 22°C works perfectly—it's fuel-efficient and effective. If there's no AC, cracking the windows slightly to allow hot and cold air to exchange can also cool things down quickly. For regular maintenance, remember to check that the AC filter isn't clogged to prolong its lifespan. Keeping a dry towel or specialized defogging cloth handy is very useful for emergencies—safety shouldn't be taken lightly, so prepare well before driving.

[EmilioLee]

As a young car owner, dealing with foggy windows in summer is super annoying—just turn on the AC. Press the defog button or manually switch to AC mode, point the vents at the windows, and blast max airflow—usually clears up in seconds. Too lazy to wait? Roll down the windows for ventilation to let the hot air out, cooling things down while clearing the fog. Keep a defogger spray in the car and use it regularly for prevention—way more hassle-free. Don’t overcomplicate it; simpler is better. Don’t wait for fog to act—check your AC settings before starting up. Watch the temp—don’t set it too low to avoid draining power and ruining the drive. Bottom line: stay chill.

[Jackson]

If the windshield fogs up quickly, turn on the air conditioner and set the fan to the windshield position. Set the fan speed to maximum to clear the fog in a few minutes. If there's no air conditioning, open the windows to allow air circulation. After parking, wipe the windshield dry to prevent fogging next time. Keep the interior dry and avoid piling up items that can accumulate moisture. Safety first—don’t wipe the windshield while driving as it can easily lead to accidents. Keep it simple and effective.