21 sierra horn not working!

[Roni Landis]

I just purchased this truck and month ago and recently noticed the horn wasn't working. I checked the fuse and it looked good so I put it back in. Magically the horn started working. Until a couple days ago I noticed it wasn't working again. I'm going to be looking in to this this weekend. Does anyone know where the horn relay is located? Horn doesn't work with remote or by pressing horn button. 

[tbarn]

Relay is a non-serviceable part of the underhood fuse block

[Roni Landis]

Looks like I may have a loose connection somewhere then...

[Transient]

Any updates?  I have a 2020.  The horn works when I press on the steering wheel, but not when I lock my truck with the key fob. 

[redwngr]

13 hours ago, Transient said:

Any updates?  I have a 2020.  The horn works when I press on the steering wheel, but not when I lock my truck with the key fob. 

Lock feedback is selectable in personalization menus in the radio