GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Lucerne 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Cruise Control Schematics
Figure 1:

ON/OFF Switch
Object Number: 1886411 Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Control Module References
Indicators
Figure 2:

Indicators
Object Number: 1886416 Size: FS
Master Electrical Component List
Cruise Control Description and Operation
Control Module References
ON/OFF Switch