Mode Switch
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Use the MODE switch in order to change the air delivery mode in the vehicle. Selection of the MODE switch when in AUTO mode will lock in the air flow mode that AUTO was controlling. The system will stay in that mode until the MODE or AUTO switch is pressed. Toggling the MODE button also activates the LCD display for the mode selected. If an airflow mode is currently displayed, pressing the MODE button selects the next air flow mode. The air flow direction will sequence through the following modes:
- MIX-BLEND-Air is directed through the floor, windshield, and side window outlets.
- BI-LEVEL-Cool air is delivered through the vent outlets while warm air is delivered through the floor outlets.
- FLOOR-Air is delivered though the floor, windshield and side window outlets.
- VENT-Air is delivered through the instrument panel outlets.
These are the only air flow modes available through the MODE button. When in AUTO mode, the HVAC control module will only operate in the following modes:
- BI-LEVEL
- VENT
- FLOOR