Remote Control Door Lock Receiver Replacement
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The remote control door lock module is incorporated into the passenger side window switch module. Refer to Switch Replacement - Door Lock and Side Window - Passenger in Doors.