Your fob went quiet. The car did not forget it on purpose.
A fob is a small radio plus a chip the car has to be told to trust. Both halves have to work. I handle that part at your car, with the programming equipment mounted in the van.
Fobs and keys I program
Transponder keys, remote head keys, flip keys, proximity fobs and push-to-start smart keys. If there is a chip in it, the chip has to be married to the vehicle before the engine will crank. Cutting the metal is the easy half of the job. Getting the car to accept it is the half you are paying for.
Try the battery before you call me
A fob that has gone silent is very often a dead coin cell rather than a lost program. Pop the case open, swap the battery, stand next to the car and try it again. If it comes back, you just saved yourself a service call, and I would rather you did that than paid me to do it.
Programming does not fall out of a car by itself. When a fob genuinely loses its program there is usually a reason sitting behind it, like water, a hard drop onto concrete, or a module that lost power.
The machines ride in the van
I carry professional OBD programming equipment and a key cutting machine bolted into the van. That means a car sitting in a parking lot with no working key gets a new one where it sits. No flatbed. No dealer appointment two weeks out, no second trip to collect anything.
Where the code actually comes from
I am a NASTF-registered Vehicle Security Professional with Secure Data Release Model access. That is the vetted channel locksmiths use to pull immobilizer data from the manufacturer for one specific VIN. It is also the reason I will ask you to prove the car is yours before I program anything to it. Anyone willing to skip that step will skip it for the next person too.
Makes I program
Ram, Ford, Chevrolet, GMC, Cadillac, Toyota, Honda, Pontiac and Hyundai are all routine here. Domestic and Asian, in short. European is a no from me, so BMW, Mercedes, Audi, Volkswagen, Volvo and Land Rover are cars I will turn down on the phone. Better you hear it now than at the curb.