
You can slightly lower both side windows to create an air current inside the car, which helps disperse the interior moisture and clear the fog. Here are solutions for obscured rearview mirrors: 1. Side windows are most troublesome. Light rain can often be cleared by simply operating the power windows to wipe off rainwater. However, during heavy rain when window operation isn't feasible, consider applying specialized waterproof films or treatments that accelerate water runoff, preventing droplet accumulation by forming a water-repellent surface layer. 2. Many modern vehicles come equipped with heated rearview mirrors. This feature can significantly improve visibility by evaporating moisture through heating, resulting in clearer viewing conditions.

When raindrops on the side windows obstruct the rearview mirror visibility during rain, I immediately slow down and turn on the car's defogger button and air conditioning defogging function. Directing warm or cold air toward the windows quickly disperses the fog. If raindrops are severe, I lower and raise the window once, allowing the wipers to remove most water stains. I also regularly apply waterproof spray to the windows to prevent rainwater from sticking. Safety comes first—if visibility remains poor, I pull over safely to wipe the mirrors. Developing a habit of regularly checking wipers and avoiding sharp turns or sudden braking while driving can reduce fog accumulation and ensure driving safety.

Poor visibility in the rearview mirror is dangerous. My approach is to immediately activate the car's defogging system, set the air conditioning to defog mode, and direct the airflow toward the side windows. Gradually reduce speed and maintain steady driving. If the issue persists, find a safe spot to pull over and wipe the glass surface with a clean cloth or tissue. Remember to regularly maintain the car's air circulation function to prevent excessive interior humidity from causing fogging. Drive with extra caution in such weather, prioritizing your safety and that of others—don't rush. Prevention is always better than dealing with problems afterward, so keep your windows clean regularly.

I often use the built-in defogging function in my car to solve this problem. First, press the air conditioning control button, adjust the temperature to a moderate level, and select the defrost air direction to direct the airflow towards the side windows. At the same time, turn on the windshield wipers to clear raindrops, or roll the windows up and down to help the rainwater flow off. This method is simple and effective, and visibility can be restored within minutes. Maintaining good ventilation inside the car prevents fogging due to large temperature differences. Additionally, applying a rain repellent coating to the windows is a great daily practice—it saves time and effort without compromising driving safety.

As a parent, when it's raining and I can't see the rearview mirror while taking my child out, I first turn on the defogging button of the air conditioner and adjust the temperature higher to blow towards the glass. If that doesn't work, I pull over and use a prepared dry towel to wipe it. I usually keep some cleaning tools in the car, and to prevent fogging, I can turn on the external circulation or open the window a little. Remember, safety is the most important thing; don't force yourself to drive and cause an accident. Simple actions can avoid big troubles, and it's good to develop this habit.

Having driven for many years, I've developed the habit of immediately turning on the wipers and the air conditioning defogging system when the rearview mirror gets blurry after rain, or slightly lowering the window to allow air circulation to clear the fog. Regularly waxing the windows or applying water repellent ensures that rainwater slides off immediately, keeping the view clear. While driving, I slow down and avoid sharp turns. If visibility becomes severely impaired, I find the nearest safe spot to pull over and wipe the windows. These minor issues can be resolved with daily practices, but the key is to focus on prevention and timely response.


