What to Do When Rain on Side Windows Obstructs the Rearview Mirror?
2 Answers
Turn on the defroster while pressing the compressor (A/C) button, which will lower the temperature inside the car. Increase the fan speed. The dry, warm air will evaporate the water molecules in the car's interior air, preventing rain from forming on the windows. Before using an anti-fog cloth, wipe the window glass with a damp cloth or wait until fog appears and then wipe it directly. Spray glass anti-fog agent directly onto the front windshield. The anti-fog effect typically lasts about 10 days, and high-quality products can even last up to a month.
When rainwater blurs both side windows and obstructs the rearview mirror, I always turn on the wipers for a few swipes first, then press the car AC's dehumidifier button to direct airflow onto the windshield—this quickly clears fog. If the vehicle has heated side mirrors, be sure to activate them; they’ll become much clearer within seconds. I’ve tried regularly treating windows with rain-repellent spray, which makes water droplets slide off faster. Drive extra cautiously in rain—avoid speeding or sudden braking, and frequently use side windows to verify road conditions. Develop good habits: clean windows and mirrors during car washes to minimize grime buildup. Prevention always beats last-minute fixes—check equipment before heading out on clear days. Remember, safety comes first; never risk rushing at the expense of security.
