GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Regal 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Cooling Schematics
Figure 1:

Engine Coolant Level
Object Number: 2179943 Size: FS
Figure 2:

Engine Cooling, Signal Fan (LTD/LE5)
Object Number: 2179945 Size: FS