How do you program a keyles remote for 2003 chey Tahoe?

you need to get in your Tahoe

1. put the key in the ignition

2. hold down the unlock button

3. continuing holding down the unlock button, turn the ignition on, then off, then on, then off again.

4. Release the unlock button(The Locks shoul lock then unlock)

5. Press the unlock and lock buttons on the remote at the same time and hold for 15 seconds

if you have done it right after 15 seconds the locks should lock then unlock

and your remote is programmed

after this turn the key to the on position to exit program mode