Passive Anti-Theft System (PATS) Keys
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The IKTs
must have SA stamped on the keyblade. Conventional PATS
keys must have HA or SA stamped on the keyblade.