Here's a thought....Watch out! I have LaMonster's ISP Key Cover. I put it on what I called the key 1. Within a week I got the D.E.S.S. error code. I took the ISP cover off, and key 1 would work. I put the cover back on key 1 and I would get the error. I took pictures of the error so I could show it to the dealer for my 3,000 service and to get it recorded via a dealer. I never tried to put the ISP key cover on key 2, Until After the 3,000 service, I put the ISP key cover on the key 2. That has been over a month ago and added a 1,000 miles with NO error. I have talked this over with a few folks and the question is: Are some of the key's chips emitting a weak signal causing the D.E.S.S. error?