What is the process for changing the annual Vienna parking Pickerl to a new car?

Here’s your answer, translated from the Vienna government webpage. The parking Pickerl is the parking authorisation sticker in the car windscreen.

QUESTION

I have a new vehicle (same license plate) or the windscreen of my vehicle has been replaced.

ANSWER

You can pick up a new electronic Vienna parking Pickerl from your municipal district office free of charge or request a new electronic Pickerl by telephone or by e-mail. It will be sent to you by post. However, you must attach the new parking sticker to your car's windscreen before parking in your residential district. If an electronic parking Pickerl is already attached to your new car, you can continue to use this Pickerl; you do not need a new Pickerl and you do not have to stick a second Picker.

Source: https://www.wien.gv.at/mba/ahs-info/parkpickerl-aenderungen.html#wechsel

List of municipal offices

It is necessary to go to the correct municipal office for your address in order to obtain your new Pickerl. A list of municipal offices can be found here: https://www.wien.gv.at/mba/mba.html