Hi, i do not know if this is the right place to post this. My wife lost her Innova car key while shopping in a mall. Though we still have a duplicate key with the alarm. i am worried that someone out there might have picked it up and therefore has the key to our car. We already inquired with the guards office and so far, no one has surrendered the key. What is the best thing to do in this situation. I have inquired with Toyota and according to them they cannot change the code of the alarm since this is unique to every toyota vehicle. Thanks.