GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2007 🢒 ION 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T45-E 🢒 Hydraulic Brake Component Views
Figure 1:

Rear of the Engine Compartment
Object Number: 1500441 Size: SF
(1)Brake Master Cylinder Auxiliary Reservoir
(2)Brake Fluid Level Switch
Figure 2:

Center Console
Object Number: 1500443 Size: MF
(1)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(2)Park Brake Switch