Anyone have information on how to get programming instructions for 2003 Santa Fe for keyless entry

Check your owner is manual. If that does not help, check your local Auto Zone or similar shop for a manual on the vehicle. If there is no help there, contact Hyundai for instructions.

Good luck!

l hate to give you this answer. But; you have to go to the dealer. The dealer has to hook up it is computer to the vehicle and program the remote for the keyless entry system. However, it does occur to me that this may not be the question you are asking. Do you mean the functions of the keyless entry system or the remote? What is the actual issue? Depending on the actual difficulty you are having l might be able to give you better direction.