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

Ignition Switch


Object Number: 1566295  Size: MF
(1)Ignition Key Alarm Switch
(2)Ignition Lock Cylinder Control Actuator
(3)Steering Column
(4)Ignition Switch
Figure 2:

Front of the I/P


Object Number: 1509879  Size: LF
(1)Lamp Switch Assembly - Fog Lamp
(2)Instrument Panel Cluster (IPC)
(3)Ignition Switch
(4)Air Temperature Sensor - Inside
(5)Sunload Sensor Assembly (CJ2) or Ambient Light Sensor (C67)
(6)Theft LED
(7)Driver Information Center (DIC)
(8)Radio
(9)HVAC Control Module
(10)Heated Seat Switch - Front Passenger
(11)Cigar Lighter
(12)Heated Seat Switch - Driver
(13)Steering Wheel Controls - Right
(14)Cruise Control Switch
(15)Voice Recorder / Cruise Switch Assembly
(16)Steering Wheel Controls - Left
(17)Turn Signal / Multifunction Switch
(18)I/P Dimmer Switch
(19)Lamp Switch Assembly - Interior Lamps