Toyota Repair: keyless entry, note steps, toyota sienna

Question
I just purchased a 2006 Toyota Sienna.  Prior I had a 2005.  the 2005 had keyless entry.  I inquired about the 2006 and the manager told the salesman to call a number he gave him, give the recipient of the call the vin # and ask if the vehicle was equipped for keyless entry.  they came back with an answer of yes.  The salesman gave me an instruction sheet for programming a remote.  They ordered a new remote to be sent to me directly at my home.  In the meantime, I have a spare that I purchased for the 2005 as a back up.  So far I have had no luck programming it, and a mechanic who programmed it for my other Sienna has been unable to get it to respond as well.  I replaced the battery just in case that was the problem, but still no go.  Does the old remote possibly have to be deprogrammed before it can be reprogrammed?  If not, any suggestions or advice you can offer?  Thanks.  Kathi

Answer
Here are the instructions for the wireless entry remote per factory manual:To Program Wireless Remote Transmitters:
Begin with:
�� The driver’s door open and unlocked.
�� Key out of the ignition.
1. Insert and remove the key from the ignition switch 2 times within 5 seconds.
NOTE:
Steps 2 and 3 should be performed within 40 seconds.
2. Close and open driver’s door TWICE.
3. Insert the key into the ignition and remove it.
NOTE:
Steps 4 – 6 should be performed within 40 seconds.
4. Close and open the driver’s door twice.
5. Insert the key into the ignition.
6. Close the door.
NOTE:
Steps 5 and 6 should be reversed for the following models ONLY (close door first,
then insert key into ignition):
�� 2000 – 2005 Celica
�� 2001 – 2003 Prius
�� 2001 – 2005 ECHO
�� 2001 – 2005 RAV4
�� 2003 – 2004 Avalon
7. Turn the ignition switch from “Lock” to “On” and back to “Lock” at about 1 second
intervals to select the desired mode:
�� 1 time for ADD mode.
�� 2 times for REWRITE mode.
�� 3 times for CONFIRMATION mode.
�� 5 times for PROHIBITION mode.
8. Remove the key from the ignition.
9. To confirm your mode selection, the power locks will now cycle “lock” to “unlock” a
number of times corresponding to your key cycles in step 7.
NOTE:
If Confirmation or Prohibition modes have been selected, opening the door will
complete the procedure.
Programming
Procedure
PROGRAMMING OEM WIRELESS DOOR LOCK REMOTE TRANSMITTERS – EL009-07 November 9, 2007
10. For Add or Rewrite modes do the following within 40 seconds of Door
Lock confirmation:
A. Press both transmitter Lock and Unlock buttons simultaneously between 1 and
1.5 seconds and release.
B. Within 3 seconds of step A, press the transmitter Lock button for more than 1
second and release.
�� If the transmitter has been successfully programmed, the power locks will
cycle “lock” to “unlock” once at this time.
�� If there are problems with the transmitter or the procedure up to this point, the
locks will cycle twice. If this occurs, verify that you have received the correct
transmitter, and then repeat the above procedure.
C. If multiple remotes are to be reprogrammed, repeat steps A and B.
11. Open the driver’s door to conclude programming mode.