GM Service Manual Online
For 1990-2009 cars only

The vehicle has one of the following rear climate control systems. With either of these systems, the rear climate controls will be disabled when the front climate control system is in defrost. This occurs to provide maximum airflow to clear the windshield.


Object Number: 2049006  Size: B2
  1. Power Button

  2. Air Delivery Mode Control

The temperature of the air coming through the rear outlets is determined by the front passenger temperature setting.

PWR (Power): Press to turn the rear climate controls on or off.

Air Delivery Mode Control: Turn clockwise or counterclockwise to change the direction of the airflow to the rear seat area.

(Panel): Air is directed to the rear console outlets.

(Bi-level): Air is directed to the second seat side floor outlets and the rear console outlets.

(Floor): Air is directed to the second seat side floor outlets.


Object Number: 2049002  Size: B2
  1. Fan Control

  2. Power Button

  3. Air Delivery Mode Control

If the vehicle has the rear seat audio system, the lower buttons are used to adjust the rear seat climate control system. The temperature of the air coming through the rear outlets is determined by the front passenger temperature setting.

(On/Off): Press to turn the rear climate controls on or off.

(Fan Control): Press to increase or decrease the fan speed.

(Air Delivery Mode Control): Press to change the direction of airflow (panel, bi-level or floor) to the rear seat area.

The rear control only turns on if the front climate control system is on and not in defrost mode.