Originally Posted by
Ronman
You cannot lock and unlock a car from a key fob from another car, it cannot be synced again one time only.
You can only do that procedure to sync with a brand new key or a key that was previously programmed to that car and too many buttons were pushed while it had no batteries inside.
I totaled the Graphite in June, 2015. Bought the SE in AUgust, 2015.
Some 3 or 4 years later, I ran the key to the SE thru the laundry. I took the blade and RFID chip out, put them in the one FOB I had from the Graphite put in new batteries, and am driving the car with that FOB today.
It took maybe five attempts, but it synced. Locks and unlocks fine.