For 1990-2009 cars only

Makes 🢒 Buick 🢒 2008 🢒 Lucerne 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 OnStar Schematics

OnStar Schematics for Buick Lucerne 2008

Figure 1:	UE1 Master Electrical Component List OnStar Description and Operation Control Module References
Figure 2:	Data Link Communication