Tocho, here's what my manual sez: (note: mine is a 2002, don't know if it makes any difference, doubt it though)
<b>Programming personal code</b>
1) Enter the factory set code
2) Press the 1/2 control within five seconds of step 1
3) Enter you personal five digit code. Enter each digit within five seconds of the previous.
<b>Erasing the personal code</b>
1) Enter the factory code
2) Press and hold 1/2 for two seconds (do it within five seconds of step 1)
Now, only factory code will work.
<b>Other tidbits:</b>
Unlocking doors:
1) Enter code (factory or personal). This unlocks driver's door.
2) Press 3/4 with five seconds of step 1 to unlock all doors.
Locking doors:
1) Press 7/8 and 9/0 at the same time
You can also use the code to deactivate the autolock feature (I personally do not like the car locking the doors for me)
1) Enter 5 digit code
2) Press and hold 7/8
3) Press and release 3/4 (while holding 7/8)
4) Release 7/8
Horn will chirp once if autolock was deactivated or twice (one short and one long chirp) if autolock was activated.
Cheers
