some of the air is recirculated through the A/C system.
A/C
Conditioned air is directed through dash registers.
Bi-Level
Conditioned air is directed through dash registers and floor
outlets. A small amount of air is directed to defrost outlets.
Vent
Compressor does not operate in this setting. Outside air is
delivered through dash registers.
Heater
Compressor does not operate in this setting. Outside air is
heated and distributed as follows: about 80 percent to floor and 20
percent to windshield and side windows.
Defrost
In defrost position, air is distributed to windshield.
Defrost Blend
In defrost blend position, air is distributed to floor,
windshield and side windows.
Fig. 1: Identifying Control Panel Settings (Typical)
Courtesy of General Motors Corp.
ADJUSTMENTS TEMPERATURE CONTROL CABLE