Mode Valve Actuator Replacement

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Mode Actuator & Screws

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
CAUTION: In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in the HVAC module. Preliminary Procedure Remove the knee bolster. Refer to Knee Bolster Replacement (With RPO SLT) or Knee Bolster Replacement (Without RPO SLT) . Remove the air outlet duct - floor LH. Refer to Floor Air Outlet Duct Replacement - Left Side . Disconnect the electrical connector from the mode actuator.
1	Mode Actuator Screw (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten: 1.6 N.m (14 lb in)
2	Mode Actuator Procedure: Re-calibrate the mode actuator. Refer to Actuator Recalibration . Tip: Mode actuator cam is now accessible.

Callout

Component Name

CAUTION: In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in the HVAC module.

Preliminary Procedure

Remove the knee bolster. Refer to Knee Bolster Replacement (With RPO SLT) or Knee Bolster Replacement (Without RPO SLT) .
Remove the air outlet duct - floor LH. Refer to Floor Air Outlet Duct Replacement - Left Side .
Disconnect the electrical connector from the mode actuator.

Mode Actuator Screw (Qty: 2)

CAUTION: Refer to Fastener Caution .

Tighten: 1.6 N.m (14 lb in)

Mode Actuator
Procedure:
Re-calibrate the mode actuator. Refer to Actuator Recalibration .
Tip: Mode actuator cam is now accessible.