System Description
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The horn system consists of the following components:
- HORN fuse
- Horn PCB relay
- Horn switch
- Horn
- Body control module (BCM)