How To A Program GM Key Fob A key fob, also called a keyless entry remote or keyless transmitter, controls your vehicle’s locks, trunk and alarm from a distance. Every key fob must be programmed to ...

Batteries fade and die over time, but but changing the cell in your Chevrolet key fob doesn't have to be difficult.

And that’s just for the fob. Add another $50 to $100 to get replacement fobs programmed to work with your car and to have a new mechanical backup key made.