So, unfortunately, I fell victim to the Intelligent key warning light and my car wouldn't start. My car is a 2010Z with only 31k and it's been running perfectly up until this happened. I had to have my car towed and have Nissan take care of the work for a whopping $1500. Was not happy about that, as I'm sure you can understand. One thing I did, and I encourage all of you that runs into this problem to do the same, is to go to NHTSA.gov (National Highway Traffic Safety Administration) Click on Vehicle Safety than scroll down to Recalls & Defects and fill out a complaint. I found that I wasn't the first (and hopefully not the last) person to fill out a complaint for this problem. If enough people do it than hopefully a recall will be set up. And if your like me and you've already paid for this problem, you'll get your money back. Hope this helps!