GM Service Manual Online
For 1990-2009 cars only

Passenger Temperature Control


Object Number: 567515  Size: SH

The passenger temperature control consists of 4 WARM and 4 COOL LED indicators. The neutral setting will keep the passenger temperature control inoperative. The passenger temperature control communicates with the heater and A/C programmer to vary the passenger air mix actuator setting. Selecting any of the blue or red positions causes the system to begin operating in the DUAL ZONE mode. The passenger may raise or lower the passenger side discharge air temperature by sliding the control in the appropriate direction. Passenger offset will be remembered across ignition cycles.

When in the DUAL ZONE mode, pressing the OFF button once on the heater and A/C control will deactivate the passenger temperature control and turn OFF the passenger temperature control LED indicators.

Greater sun load on one side of the vehicle may cause the discharge air temperatures to be different even when the system is not operating in DUAL ZONE mode.