This is an update -My second new replacement Key is on Track four (out of the six tracks)the originals are on one and two, and are the old style smart key. The dealer again had my car and new key for two days this time, as I submitted an "exel" report over 80 starts complete with Date,time, Kms, locations etc. There were 16 fail starts, one 5 in a row ,had to remove key and reinsert to start. Dealer has concluded(they never had a problem like this one with a new smart key) and that my problem is the EIS unit in the dash , not the key and would be $2100 to replace. Am not doing this, as old keys OK.