How to defog the windshield of Buick GL8?
2 Answers
The rear windshield defogging is done by a separate button for electric heating defogging, while the front windshield defogging can be done using either the air conditioning or the heater. Below is a related introduction to windshield defogging: 1. Cold air defogging: The car air conditioning is the most commonly used method for defogging. Both cold air and warm air have defogging effects. Cold air defogging is the fastest because it easily balances the temperature inside and outside the car. However, turning on the cold air on a freezing day can make you shiver, so using cold air is not recommended. 2. Warm air defogging: The warm air from the air conditioning is quite effective for defogging and is very practical, especially since most people turn on the heater while driving in winter. However, initially, due to the large temperature difference between the inside and outside, more fog may form. Once the warm air dries the fog, it will naturally disappear.
I've been driving a Buick GL8 for several years and have some experience with defogging. Fogging mainly occurs due to large temperature differences and high humidity, such as on rainy days or in winter. There's a dedicated defogging button in the Buick, with an icon resembling a windshield—just press it. The system will activate the A/C compressor, automatically adjusting the airflow direction and speed to blow onto the front windshield. Setting the temperature between 18 to 22 degrees Celsius works best. I usually start with the external circulation mode to let dry air from outside enter the car, which speeds up dehumidification. Within a minute or two, the fog clears up. Don’t wait until the fog is heavy to deal with it; pressing the button as soon as you start the car is more efficient. Additionally, keeping the interior of the windows clean and avoiding oil buildup can reduce the frequency of fogging. For safety, don’t wipe the windows while driving—handle these small details when parked to quickly restore clear visibility. In short, one button press saves time and effort.
