Cadillac Smart Key Replacement in PGA Village

A PGA Village Cadillac owner had lost a smart key on a golf outing and wanted the lost key deauthorized before it could be found by anyone else and used to enter — or start — the vehicle. Losing a fob is not just an inconvenience; on a proximity-entry vehicle, an unfound fob is effectively a house key with your address on it.

We arrived with a correct-part-number Cadillac smart key and confirmed the customer's remaining fob still worked. From there the sequence is straightforward: enter the platform's security session via OBD-II, add the new key, then in the same session invalidate the missing fob so the vehicle refuses to authenticate it going forward.

Push-to-start was verified, passive entry checked at each door handle, and remote start (where equipped) tested. We also verified that the customer's surviving fob was still authorized as key #2, and that the lost fob was demonstrably no longer accepted by the vehicle.

This is exactly the case where mobile programming shines. A dealer trip to deauthorize a lost fob is a service-department appointment, an appointment window, and a bill — none of which is proportional to a fifteen-minute programming session in the driveway. Mobile locksmith work handles it the same day.

The customer left with a fresh authorized primary key, a verified working spare, and confirmation that the lost fob is now a piece of plastic — no longer a security exposure.