That's odd, I have never heard of a 600 with a de synced key!
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Originally posted by 137699 View PostYes it's a 450 and yes you have a "de-sync'd" key. Well actually / technically not de-synced - as you can see - you press the button, and the car responds by flashing the hazards, but alas doesn't do what it's supposed to do.
Reason? There is an error in the locking algorithm which creates a code which is invalid - so yes the car receives the key's instruction but throws an error that the code is "outside of expected range". There is nothing you can do to prevent this from happening. As evilution says, as a Smart owner you HAVE to have a 2nd key - if you own the car long enough it is inevitable that this will happen. Could be tomorrow - could be 20 years away - it's completely random and can strike at any moment.
Mike
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