Preliminary Procedure

1. Remove the fuse labeled HVAC CTRL (BATT).
2. Remove the right closeout panel. Refer to Instrument Panel Insulator Panel Replacement - Right Side .
3. Remove the communications interface module. Refer to Communication Interface Module Replacement .
4. Remove the OnStar module bracket. Refer to Communication Interface Module Bracket Replacement .
5. Disconnect the recirculation actuator electrical connector.

1

Recirculation Actuator Screw

Notice: Refer to Fastener Notice in the Preface section.

Tighten
1.5 N·m (13 lb in)

2

Recirculation Actuator

Tip

1. Do not adjust any controls on the HVAC control assembly while the HVAC control assembly and actuators are calibrating. If interrupted improper HVAC performance will result.
2. Refer to Control Module References for programming and set up information.