ZV at Tahoe

Moin all on the other hand! I’ve got my 03 tahoe and am very happy with the car. Only one annoying: There is no confirmation message with the ZV…. Unfortunately this point is hidden in the on-board computer. I know that in D the “tweaking” of the horn is forbidden, but every small car has a blinker confirmation… 🙁 With my Explorer this was already like this: apparently all vehicles imported from US have experienced a complete shutdown of the confirmation, as one probably not the horn al Now my question: can it be “scratched” again? At Chevy in the workshop, one is stubborn – “that’s not possible!” Is that true? Best regards, consrade