Alternate procedure if above doesn't work or if you do not have a working remote:
1. Turn key to position 1 five times very quickly
2. Remove key
3. Hold unlock button then press lock button 3 times, release unlock button.
4. If you have another key do the same button pressing within 30 seconds
5. Turn on ignition to finalize
Yea, that was the procedure which worked for me. Had exactly the same problem as you did.. So glad all is working now, was starting to get very annoying!
just tried my spare (which i have never used) thankfully it worked.. but unluckily the key had the be programed by the previous owner to set the seats to memory 3 - which I had set to be slide forward to gain access to rear! Then had to wait a few mins while the slided back into position!
