Having thought about this a little more I think it would be safer if I just gave the option to just swap the front and back order displayed on the screen.
This would work because tire rotation just moves front to back not side to side.
You would just need to add/release air from the front left tire, drive a little to get a PSI update and see if the front or rear left tire shows the change. If it shows the top number changed you are done. If it is the bottom number you select a new swap option and front and rear numbers swap. Then adjust front tire back to the correct pressure.
Going the registration option is much more complicated - adjusting all four tires, driving for 3 or more minutes and then readjusting all the tires back to their correct pressure. But the result is the same.
Once you have the app sync'd with the Leaf then each time you rotate the tires you just toggle the swap option and you are done.
You only need the registration option for new tires or left/right swapping.
This would work because tire rotation just moves front to back not side to side.
You would just need to add/release air from the front left tire, drive a little to get a PSI update and see if the front or rear left tire shows the change. If it shows the top number changed you are done. If it is the bottom number you select a new swap option and front and rear numbers swap. Then adjust front tire back to the correct pressure.
Going the registration option is much more complicated - adjusting all four tires, driving for 3 or more minutes and then readjusting all the tires back to their correct pressure. But the result is the same.
Once you have the app sync'd with the Leaf then each time you rotate the tires you just toggle the swap option and you are done.
You only need the registration option for new tires or left/right swapping.