Bi-Level Mode
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
When the operator selects Bi-Level, the following occurs:
- The mode actuator is in neutral position.
- The defrost actuator has vacuum applied.
- The defrost actuator closes the defrost door, thus opening the heater door through mechanical linkage.
- Vacuum is bled off the mode actuator and the vent door is held stationary in the half open position.