reprogramming a keyless remote for 99 Tahoe

Bought an extra keyless remote for my 99 Tahoe. Anyone have directions for reprogramming?

maybe these will help from another post in this carform.

Re: Prgrammng '97 Chevy Suburban keyless
Provided you have a factory system the following proceedure will work.

1)Ground terminal #8 (black/white wire)of Data Link connector (DLC) Receiver willl respond by locking / unlocking all doors within 2 seconds. Press and hold LOCK and UNLOCK buttons on the remote simeltaneously on first transmitter until locks cycle (lock then unlock)

2) Press and hold LOCK and UNLOCK buttons simeltaneously on second transmitter until the locks cycle

Remove ground from black white wire pin # 8 at DLC


Transmitter function can now be verified..

DLC is located under drivers side of dash, bolted directly to the bottom of the dash panel

Hope this helps!

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Would anyone know how to program the Keyless Remote on the 2000 Chevy Silverado? If I can find this info, it would save me a couple of bucks.
1- Start with the ignition OFF, hold down the power unlock button on the door panel. Turn the ignition key ON,OFF,ON,OFF. Release power unlock button on the door panel. The locks will cycle once.

2- Hold down the keyless entry transmitter LOCK and UNLOCK buttons for 15 seconds. The locks will again cycle once.

3- Repeat step #2 for each additional keyless entry transmitter.

4- Turn the ignition ON to exit the keyless entry transmitter programming mode. Programming is now complete.