Where is the external circulation button on the Buick LaCrosse?

[VanAdam]

Here is the location of the external circulation button on the Buick LaCrosse: Below the center console, there are three knobs. Under the largest middle knob, there are three buttons. The middle button controls the internal and external circulation. When the button is pressed and the indicator light is on, it indicates the internal circulation is activated. Pressing it again to turn off the indicator light means the external circulation is activated. Below is additional information about the Buick's external circulation: 1. External circulation connects the interior of the car with the outside. While the vehicle is moving, airflow automatically enters the car due to wind pressure. When stationary, outside air can still enter the blower through the air ducts and be blown into the car. 2. When you first purchase a new car, you should try to use the external circulation as much as possible to maintain air flow between the inside and outside of the car. This helps to quickly release harmful gases from the car's interior. 3. During long periods of high-speed driving, if the internal circulation is kept on continuously, it can lead to insufficient oxygen inside the car, causing driver fatigue and potentially leading to traffic accidents. Therefore, it is necessary to turn on the external circulation to replenish fresh air inside the car.

[McAdrian]

I've been driving a Buick LaCrosse for several years and know that the external circulation button on the air conditioning panel is easy to find. It's located near the temperature knob on the center console, marked with a small car icon and an arrow pointing inward. Pressing it to light up the indicator means the external circulation is on. Buick's design is thoughtful, with a reasonable position that's easily reachable. I like to use the external circulation on open roads to get fresh air, especially on rainy days when it's noticeably effective for defogging. Remember to check the air filter regularly to ensure unobstructed airflow. The icon's position might vary slightly across different model years, but it's always in the air control area, and the operation is very straightforward.

[DelCorbin]

When I bought the Buick LaCrosse, I also struggled to find the external circulation button. It's actually located below or beside the central instrument panel screen. The one with the car and arrow icon is it – press it to light up the indicator and activate external circulation. I've gotten used to it in daily use: I turn it off in city traffic to avoid exhaust fumes, and open it on highways for superb ventilation. Buick's layout is intuitive – new drivers can master it after a few tries. With automatic AC, it adjusts intelligently, but the manual button allows instant control anytime. The ergonomic placement means you can operate it without significant distraction while driving.

[MacAndres]

The Buick LaCrosse's external circulation button is located on the air conditioning panel. Look for the icon labeled REC or with a car arrow, and press it to switch between internal and external air. It's usually positioned next to the temperature and fan speed controls, making it easy to find. The operation is straightforward—just press it to activate the external circulation and draw outside air into the car. Don't worry if you're a beginner; Buick's system is simple.