What to Do When Fogging Occurs with AC On?

[OAlaina]

Generally, the front windshield defrosting function is used to treat the front windshield based on the driving environment. It is recommended to direct airflow to the front windshield and central vents, and activate the rear windshield heating function. Activate both the front windshield defrosting and rear windshield heating functions. If fogging occurs on the side windows, slightly opening them at an angle can help.

[CharlotteLynn]

Turning on the AC often causes fogging, a common issue mainly due to low interior temperature, high exterior humidity, and condensation on the windows. The solution is simple: avoid using recirculation mode continuously when the AC is on—switch to fresh air intake instead; increase the fan speed or avoid setting the temperature too low; press the defrost button and direct airflow to the windshield to quickly clear the fog. If heavy fog severely obstructs visibility, pull over to address it—safety first. Additionally, clean the AC vents, as dust buildup can block airflow and worsen fogging. Remember to maintain the AC system regularly and start cooling early in summer to prevent moisture buildup. Though fogging seems minor, obscured vision while driving is dangerous—adjust promptly and don’t cut corners.