How do I program a Factory GM door remote control for a 2001 Chevy Silverado Truck?

Here is the process as per GM. Remember that all your key fobs must be programmed at the same time since once you begin this process the truck erases all previous fobs.

1. Close all the vehicle doors.

2. Insert the ignition key into the ignition lock cylinder.

3. Press and hold the door unlock switch.

4. While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.

5. Release the door unlock switch. The doors will lock and unlock to confirm the program mode.

6. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.

7. Repeat the previous step to program up to 4 transmitters.

8. Turn the ignition switch to the RUN position in order to exit the keyless entry transmitter programming mode.

9. Operate the transmitter functions in order to verify correct system operation.

Programming Gm Key Fob

if it just the remote fob u talking about hold the lock and unlock buttons at the same time while pointing at the truck for about 7 seconds. u can take the fob apart and the directions is inside on 1 the 2 pieces

if you have a remote all ready you have to turn the ignition about 8 times on and off with out turning the engine over and then press the door lock on the remote and your doors should lock.