GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Park Brake Switch


Object Number: 752716  Size: MF
(1)Park Brake Lever Assembly
(2)Park Brake Switch
Figure 2:

Brake Fluid Level Switch


Object Number: 757245  Size: MF
(1)Brake Fluid Level Switch
(2)Chassis Harness
(3)Brake Master Cylinder