Now Implemented!
Description
Offer a way to alert pedestrians of your quiet car nearby.
Competitive/Pricing/Notes
I think most drivers of electric vehicles agree that we do not want any artificial sounds permanently emitted from our vehicles to make up for the “missing” engine rumble. At the same time, there is consensus that electric vehicles, while still far and few in between, are particularly dangerous for that very reason: Pedestrians and cyclists usually do not hear us coming and presume that where there is no noise, there is no car.
Honking the normal horn is not a good option, since it’s way too loud and thus can inappropriately scare pedestrians and cyclists, giving us EV drivers an inadvertently aggressive appearance. A simple and adequate solution has been discussed for a long time now, and I hope that Tesla will implement it in their vehicles soon: An additional, smaller, less aggressive, manually operated horn specifically to warn pedestrians and cyclists.
The Chevrolet Volt/Opel Ampera has this feature, and it has proven very useful.
Status
As of late 2020 builds, Teslas now have the mandated low-speed external noisemaker, which serves the same purpose without needed a muted horn function.
(voting combined from a close duplicate that has been removed)