Mode Actuator Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 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
NOTE: 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) NOTE: Refer to Fastener Notice . 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

NOTE: 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)

NOTE: Refer to Fastener Notice .

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.