Removal & Installation (All Models)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Remove the heater/vent module. Remove the heater/vent module screws. Separate the heater/vent module. Remove the mode actuator. Remove the mode actuator cam assembly. Remove the heater door cam assembly. Remove the heater door. See Figure.