GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC Sierra Denali 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Horn Component Views
Figure 1:

Radiator Support - Horn Components
Object Number: 349995 Size: LF
(1)Radiator Support
(2)Horn - High Note
(3)Horn - Low Note
Figure 2:

Upper Steering Column
Object Number: 1195907 Size: LF
(1)Passlock Sensor
(2)Ignition Key Alarm Switch
(3)Ignition Lock Cylinder Control Actuator
(4)Ignition Switch
(5)Ignition Key Cylinder
(6)Horn Switch
(7)Inflatable Restraint Steering Wheel Module
(8)Turn Signal/Multifunction Switch
(9)Hazard Warning Switch