Help w/keyless entry

Can anyone please tell me how to program the remotes for my keyless entry system? I have a 1999 c/k full-size pick-up. Thanks.

it should be in the owners manual or somewhere. the dealership would even know. I have an alarm with keyless entry on it and when i program my remotes i turn my ignition on 5 times within 10 secs. on the last time you hold your button down and your locks should pop. also on the last time your interior lights should flash to let you know it is ready. may or may not work for you, might try it. Outside of that my recomendations would be to call the dealership. i can tell you with certainty they should know.