I have a '22 GCL Overland and was quite annoyed with the "feature" where the vehicle would honk the horn three times when I got out of the vehicle with the key fob in my pocket, and the engine was still running. Since I've seen many posts asking how to defeat this behavior, and it appears no one has found a way to turn this setting off in Uconnect, here is a hack I found on a FB post that I've been using for a while now. It cost about $50 in Amazon parts and took about 15 minutes to install.
You will need a fuse tap to replace the factory 20A horn fuse, a relay timer to delay the horn by a fraction of a second, and a standard-size 10A fuse. I purchased the micro 2 fuse tap at https://www.amazon.com/gp/product/B09G7YRG9Q/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1 and a 10A mini timer relay (with programmer) at https://www.amazon.com/gp/product/B01HNDOCKK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1.
First, use the programmer to configure the timer to delay the signal for 1/30th of a second. (A screenshot of my configuration is attached).
Next, cut into one side of the fuse tap. Connect the wire coming out of the fuse holder to the red wire of the relay. Connect the wire that leads back to the fuse tap to the yellow wire of the relay. Note that when inserting the fuse tap into the fuse block, the side of the tap that you did NOT cut should face the driver's side. This way, you can put a 10A fuse between the fuse block and the relay. (A closeup photo of my setup is attached). You will not need either the blue or green wires for this project, and the white will only be necessary if you want to reprogram the relay in the future.
Lastly, remove the 20A fuse from the engine compartment fuse block in slot F66. Plug the fuse tap into F66 (noting the correct orientation) and run the black wire of the relay to the grounding post that is right next to the fuse block. I've attached a photo of the finished product (it just needed to get zip-tied down once I confirmed that it worked). The cover to the fuse block will snap back on with a little bit of pressure, or you can cut a small slit if you're worried about crushing the wires.
Note: this will delay the signal to the horn by just enough so the horn never receives it. This will affect any function in which the vehicle "chirps" the horn, such as when you leave the vehicle while the engine is running, when the key fob is missing, when you remote start, or when you lock the doors with the fob. Most of these options can be turned off through Uconnect anyways, but know that any function that momentarily chirps the horn will no longer work. Your normal, manual use of the horn, or any function that uses long horn blasts, like the alarm/panic button, should still function as normal.
You will need a fuse tap to replace the factory 20A horn fuse, a relay timer to delay the horn by a fraction of a second, and a standard-size 10A fuse. I purchased the micro 2 fuse tap at https://www.amazon.com/gp/product/B09G7YRG9Q/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1 and a 10A mini timer relay (with programmer) at https://www.amazon.com/gp/product/B01HNDOCKK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1.
First, use the programmer to configure the timer to delay the signal for 1/30th of a second. (A screenshot of my configuration is attached).
Next, cut into one side of the fuse tap. Connect the wire coming out of the fuse holder to the red wire of the relay. Connect the wire that leads back to the fuse tap to the yellow wire of the relay. Note that when inserting the fuse tap into the fuse block, the side of the tap that you did NOT cut should face the driver's side. This way, you can put a 10A fuse between the fuse block and the relay. (A closeup photo of my setup is attached). You will not need either the blue or green wires for this project, and the white will only be necessary if you want to reprogram the relay in the future.
Lastly, remove the 20A fuse from the engine compartment fuse block in slot F66. Plug the fuse tap into F66 (noting the correct orientation) and run the black wire of the relay to the grounding post that is right next to the fuse block. I've attached a photo of the finished product (it just needed to get zip-tied down once I confirmed that it worked). The cover to the fuse block will snap back on with a little bit of pressure, or you can cut a small slit if you're worried about crushing the wires.
Note: this will delay the signal to the horn by just enough so the horn never receives it. This will affect any function in which the vehicle "chirps" the horn, such as when you leave the vehicle while the engine is running, when the key fob is missing, when you remote start, or when you lock the doors with the fob. Most of these options can be turned off through Uconnect anyways, but know that any function that momentarily chirps the horn will no longer work. Your normal, manual use of the horn, or any function that uses long horn blasts, like the alarm/panic button, should still function as normal.
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