How to Defog Windshield
Learn how to defog windshield with our detailed step-by-step guide. Follow our easy instructions to get it done right.
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0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Turn On Defrost Mode
Step 1: Turn On Defrost Mode
Set climate control to defrost/defog mode which directs airflow to windshield.
2 Step 2: Turn On AC or Heat Based on Conditions
Step 2: Turn On AC or Heat Based on Conditions
Use AC in summer (dehumidifies air), heat in winter to warm glass and evaporate moisture.
3 Step 3: Crack Windows for Air Circulation
Step 3: Crack Windows for Air Circulation
Open windows slightly to allow fresh air in and humid air out, speeding defogging.
4 Step 4: Turn Off Recirculation Mode
Step 4: Turn Off Recirculation Mode
Use fresh air mode instead of recirculation to bring in dry outside air.
5 Step 5: Use Anti-Fog Treatment
Step 5: Use Anti-Fog Treatment
Apply anti-fog spray or wipe to interior windshield to prevent fog from forming.
Anti-Fog Spray
Treatment for preventing windshield fogging
Rain-X Anti-Fog Wipes
Pre-treated wipes for quick anti-fog application
6 Step 6: Clean Interior Windshield Regularly
Step 6: Clean Interior Windshield Regularly
Remove film buildup from interior glass - dirty glass fogs more easily than clean glass.
Glass Cleaner
Ammonia-free cleaner for interior windshield
Microfiber Glass Cloths
Lint-free cloths for streak-free glass cleaning (2-pack)