Any suggestions on removing a 2015 Model S nosecone to replace a SunPass transponder?
It's held on by spring clips. Pull straight out. It will still be attached by the wires to the two ultrasonic sensors. You can pry with a plastic paint stirrer at the indent on the upper right side (facing the car - driver side) if necessary.
Can also pry it with a credit card
If you don’t want to deal with the nose cone, the windshield mounted transponder should, if you have a dark area to the right of the rear view mirror. My SunPass transponder has worked there in both my pre-refresh 2016 S85 and my 2018 S100D.
... should work,
Can also read the manual, or the self help guide on the Tesla website, very clear illustration on how it is done.
I prefer to remove the trunk side panels and then front panel, and then push the nose cone off from the inside. Depending where your device is, may not even need to remove the cone. No tools are required with this approach.
" remove the Frunk side panels"
Look on Youtube. Plenty of demos
To easily pop off the nosecone you just open the hood and sit down a little hard at the front of the frunk. No tools required.
Sit you fat or skinny ass on it, pops off easily.
I use the butt dislodge method as well.