I got off work at 4:30 pm the other day, and came out to my new (for me) 2009 car, and the front windshield was foggy. No other windows were foggy in my car, and no windows were foggy on any one of the 50 cars in the parking lot, b/c I checked every one as a slowly cruised around the parking lot be…

Did you turn the heater on? If so did you get a sweet smell? Could be your heater core has a leak. Do you have damp carpet and or sunroof, or is the heater turned on to recirculate? One time I had parked over a damp spot in a parking garage.

You have some type of moisture trapped in your vehicle. See if you can locate the source or have a good mechanic find it for you.

In winter months, there is lots of humidity from the passengers in a car. Make sure you run your car with the AC on before it’s parked.

“Make sure you run your car with the AC on before it’s parked.” While it may seem counter intuitive, it is good advice.

Missileman, I think ur answer is the most practical so far, b/c I didn’t do anything different than I’ve done with any car I’ve owned in the last 40 yrs, and this is the first time I’ve had this problem, with only the windshield foggy, after sitting for hrs in the sun on a sunny, low humidty day (hi…

Foggy windshield problem on a sunny day when no one else has a foggy one

General Discussion

Caddyman January 30, 2012, 1:17am 7

If, when you turn on the defroster, the problem quickly gets worse, it’s the heater core leaking or the air conditioner drain is plugged up, allowing water to collect in the heater box… This saturated air then condenses on the windshield…

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Foggy windshield problem on a sunny day when no one else has a foggy one

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