Remote Programming

I have a 1999 Avalon XLS and a 2000 Avalon XLS. Both have two remotes. I can program only one for each car. How do you program multiple remotes for each car?

I have a 1999 Avalon XLS and a 2000 Avalon XLS. Both have two remotes. I can program only one for each car. How do you program multiple remotes for each car?
Re: Program keyless remote-Need instructions
The dealer was happy to give it to me so here is the procedure. let me know if it works. Note Step 8 for adding a remote

1. Driver door open and unlocked. Key out of the ignition
2. Insert the key and remove 2 times in 5 sec.
3. Close and open driver door 2 times in 40 sec.
4. Insert the key and remove it again from ignition.
5. Close and open driver door 2 times in 40 sec.
6. Insert the key in ignition,
7. Close the door,
8. Turn to on and back to lock in 1 second intervals. 1 time for add, 2 times for rewrite, 3 for confirmation 5 for prohibition. (yes, there is no “4”)
9. Remove the key
10. Power lock will cycle to confirm
11. For add or rewrite mode within 40 sec of the confirmation,
A. press “lock” and “unlock” buttons of the FOB at the same time between 1 and 1.5 seconds.
B. within 3 sec press “Lock” button for more than 1 sec and release.
C. If it’s correct, the power door lock will cycle once. If it’s wrong the door lock will cycle twice.