The causes of the fog on windshield –

It’s most dangerous to driving without being able to see because of the fog on the windshield. It happens mostly in winter, it also on rainy day of summer. The cause is the temperature difference between inside the car and the outside.

How to defog your car windshield?

1. Crack open the windows.

Crack open the windows

Allow fresh air into the car by cracking the windows open. The circulation of outer air alone will often be enough to defog the windshield without the heater/air conditioner. This might not be possible sometimes due to cold or rain, but installing vent visors on the windows can reduce problems like rain.


2. Clean the windshield with towels.

Clean the windshield with towels

It’s very effective and simple. But it may cause dangerous when driving.


3. Defogging with air condition.

Defoging with air condition

If your car is equipped with automatic air conditioning, you only need to turn on the windshield switch.

Manual air conditioning

If your car is equipped with manual air conditioning

Step 1: Adjust Wind Direction Switch to windshield position (  or  ) with A/C on.

Step2: Switch on the air-conditioner in fresh air mode (  or off)


4. Defogging Rear Windshield.

Defogging Rear Windshield


Also see – Precautions during winter in Hills

  • Louis

    How do we remove fog on the outside of windshield and side glasses?

  • bharathautos

    Bro read point no. 3, but you have no option to defog the side windows, but to manually wipe in hand, in entry-level cars…