GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 LaCrosse 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Remote Function Schematics
Figure 1:

Garage Door Opener
Object Number: 1888821 Size: FS
Master Electrical Component List
Garage Door Opener Description and Operation
Control Module References
Keyless Door Entry
Figure 2:

Keyless Door Entry
Object Number: 1888823 Size: FS
Master Electrical Component List
Keyless Entry System Description and Operation
Control Module References
Garage Door Opener