Horn is located on passenger side front. Look from underside. It is about 4" in diameter. There is a plug with a clasp that connects from the top. release the clasp and pull the plug.
It has to be checked out and find out what is wrong with it.
Look on the backside of the fuse cover case. if the diagram is not there i suggest calling a Chevy dealer. goodluck
The horn is behind the front grill on the passenger side.
The horn relay on a 1989 Chevy Silverado is located on the passenger side of the engine compartment. It is way back on the firewall with several other relay switches.
Vortec V-6
In front of the radiator. pull off the grill
im sure google does
it is easier to repair the OEM horn assembly than to "rig" up a button
In a 1984 Chevy Silverado, the fuse for the horn is typically located in the fuse box under the dashboard on the driver's side. You'll want to check the fuse labeled for the horn, which is usually a 15-amp fuse. If the horn is not functioning, inspecting this fuse for any signs of damage or a break is a good first step. If the fuse is intact, the issue may lie elsewhere in the horn circuit.
On the 2000 Chevy Silverado, there are two horns. Both are mounted on the front of the vehicle. One on each side of the radiator near the bottom.
steering wheel diagram for 1993 silverado horn
It should be in the power distribution box under the hood.