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

Cruise Control Main Switch


Object Number: 594856  Size: SF
(1)Cruise Control Main Switch
Figure 2:

Cruise Control Mode Switch


Object Number: 609532  Size: MF
Figure 3:

Cruise Control Servo


Object Number: 594984  Size: SF
(1)Cruise Control Servo