I am looking to source a factory-looking button to connect to a relay to run Fire Department lights in the front and back of my 2019 Leave SL (not a plus).
I have an install scheduled this week with the local Audio installer to install the lights and my VHF radio, thus I need to get this figured out soon.
You can probably get switches from Nissan, but I doubt that local dealers would stock them since failure is rare. The older LEAFs had a panel with blank spaces where switches could be added and they were a standard size available from multiple sources. The newer cars don't have that panel so I am not sure where you would mount a switch to make it look like original. Also, most of the switches in the newer cars are momentary contact and you probably want an on/off maintained contact switch for your application. If there are any car recycling centers (junk yards) near you, you might be able to get a switch from a wrecked LEAF.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL Plus purchased 8/10/2019
Just get a generic switch and power the FD lights with a relay. Your audio installer should be able to handle it easily and make it look good. Stuff like this is their bread and butter.