Section 24 (A/C-Heater System - Automatic): Operation: Notes
WARNING: This page is about a different car, the 1995 Oldsmobile Cutlass Supreme. However, it is still accessible from the selected car via links, so may be relevant.
Dual zone A/C system is a vacuum and electronically controlled heating, ventilating and air conditioning system. Both electronic and vacuum circuits determine air intake and discharge locations. Electronic circuits also control mode, A/C compressor clutch operation, fan operation and discharge air temperature.
Driver can select a desired interior temperature, fan speed and one of 8 different modes of operation from system control panel. One mode is a fully automatic dual zone mode. The passenger, through a separate passenger side temperature control panel, is able to increase or decrease air discharge temperature on that side of vehicle. Displayed set temperature will not react to passenger control.