Originally Posted by Eticketride

After 3 years of owning a G35, I have never been able to figure out how people can lock themselves out of their car. The only way my car will lock itself is if you unlock it and do not touch the car for 30 seconds. Then the car will relock itself. As far as I know, my car will not auto lock. Maybe the 2004 and 2005 cars are different, but I have read some posts about people locking themselves out of their 2003 cars. Maybe there is some setting or programing issue with the locking system that makes some cars different.

As far as the original poster's question, I don't think there is an answer unless they can replicate this at the dealer and have that feature turned off. I am sorry to say that the other people here are correct in saying you should not leave your keys in the car. It is not the answer to the question, but it will prevent you from future problems.