I press the fob lock button twice whenever I park the truck in my garage overnight. I read (correctly or incorrectly) on MTC that double-lock fob press shuts down some of the Hybrid clickety-clack relays after the truck is parked. I do everything I can to extend battery life, hence my double-locking. Even on models newer than '23, it's probably still possible to disable the annoying horn honk in FORScan, although I cannot confirm that.
The damned horn loudly honking in my garage was one reason I disabled it. I also hate inconsiderate horn noise in parking lots. The worst is when you're walking 2 feet away from the front of a vehicle and some oblivious idiot locks their vehicle from a distance and the horn honks.
The flashing lights are plenty of notification that you locked your vehicle.
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