What to Do When the Car Is Full of Fog After Exiting the Underground Garage?

2 Answers
DelRuby
08/30/25 3:16am
Here are specific methods to deal with foggy windows after exiting the underground garage: 1. Turn on the corresponding switches: Activate the vehicle's air conditioning system, press the AC button, and switch to the front windshield defogging function. Within a few seconds, this can remove fog from the vehicle's windows. Alternatively, quickly open the car windows to balance the temperature inside the car, effectively removing fog and enhancing driving safety. 2. Replace the air inside the car promptly: During normal use, if the vehicle is frequently parked in an underground garage, it may lead to excessive humidity inside. When starting the vehicle, turn on the heating system or air conditioning system, set the fan to maximum speed, and blow out the damp air inside. Only after replacing the air with fresh air should the vehicle be driven.
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ReaganMarie
09/11/25 7:21am
When driving out of the underground garage, I often find the windshield completely fogged up, which is especially common in winter. Every time this happens, I turn on the air conditioner and direct it toward the windshield with the fan speed set to maximum and the temperature not too high. The key is to press the front windshield defogging button (the fan-shaped one on the AC control panel) and switch to external circulation to let dry outside air in. If the rear windows are also fogged, don’t forget to turn on the rear window defroster (the square button with wavy lines). Wait patiently for about three minutes, and the fog will gradually clear. Before driving, remember to wipe the inside of the glass with a clean cloth or apply an anti-fog spray to the surface in advance—this will significantly slow down fog formation. Also, avoid leaving damp items like umbrellas or wet rags in the car. Before parking, run the AC for a few minutes before turning off the engine to reduce temperature differences that cause fogging.
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