The procedure to program keys on 2015-2018 Transit vehicles depends on if the vehicle is equipped with the Passive Anti-Theft System (PATS). Keys for PATS and non-PATS vehicles look the same, there is no visual difference. Vehicles with PATS have a plastic ring around the ignition lock cylinder and transponder. On the OASIS page, PATS vehicles can be identified by clicking on the Additional Information link and using the search function (Ctrl + F) to find IMMOBILIZER. Vehicles with LESS ENG IMMOBILIZER THEFT SYS do not have PATS. Refer to Work Shop Manual (WSM), Section 501-14 for programming keys on non PATS vehicles and Section 419-01B for programming keys on PATS vehicles. When performing the PATS key procedure, both PATS and Remote Keyless Entry codes are programmed simultaneously.
