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

Steering Wheel Components


Object Number: 1825870  Size: LF
(1)Horn Switch
(2)Steering Wheel Control Switch - Right (UK3/K34)
(3)Steering Wheel Control Switch - Left (UK3/K34)
Figure 2:

Pedal Assemblies


Object Number: 1869217  Size: LF
(1)Brake Pedal Position Sensor
(2)Accelerator Pedal Position (APP) Sensor