If you have an Android phone, create a "work" profile, and have the app remain on her car in that profile. Use that profile's Tesla app instance for your wife's car.
Thanks
@garsh for this AMAZING solution. Even when I was attempting to set this up I didn't think it could possibly work. Now I never have to swap cars on the app to move them around the driveway or jump back and forth! Best hack solution ever! You rock man!!!!
For those (like me) who are not sure how to set this up here is a quick set of instructions:
On your Android phone:
Go to settings, search for "Profiles"
Setup a new profile, call it "Work" or "Tesla" or any name you want.
It will take several minutes and several "yes" clicks but just wait for it.
On the new profile, install the Tesla app.
Login with your info and setup the phone key for at least one car. (I had to play with it a bit, turned on airplane mode, then off, before I could get this to work in the 2nd profile.)
The last step can also be tricky if you have 2 factor authentication turned on but it can be done. If you have trouble then turn off 2FA and turn it back on after setup.
Go back to your original profile and select the other car in your account. Now your phone is always active as the key to both cars!
LOVE IT!!!!
