took me a few times to complete this procedure for a 2006/black fob.
the lock/unlock was a little more tricky than the starting function. i had the 'double lock' thing mentioned - everytime! i don't know what made it work in the end, i actually hit a button on the known-good fob after the last time also gave me a double lock and this seemed to do the trick.
i did have a different experience though... when it started working (like doing anything at all to the locks) it wouldn't lock/unlock. just flash the hazards and it seemed to be doing _something_ with the lock. i could no longer lock/unlock with the old fob either!
it was a bit of panic i'd bricked something, but i left it for 10 minutes, went for a drive around the block with the old fob in and everything came good again.
best of all, both keys now work!
the lock/unlock was a little more tricky than the starting function. i had the 'double lock' thing mentioned - everytime! i don't know what made it work in the end, i actually hit a button on the known-good fob after the last time also gave me a double lock and this seemed to do the trick.
i did have a different experience though... when it started working (like doing anything at all to the locks) it wouldn't lock/unlock. just flash the hazards and it seemed to be doing _something_ with the lock. i could no longer lock/unlock with the old fob either!
it was a bit of panic i'd bricked something, but i left it for 10 minutes, went for a drive around the block with the old fob in and everything came good again.
best of all, both keys now work!