Hi sevenvolvos it may be that your immobilizer antenna ring is going bad. It's a ring that goes around where you insert your key and it reads the chip in the key. It's designed to prevent your car from being started with anything but your key. I have a 2002 v70 and it had the same problem. Mine started most of the time but every so often it gave the same warning message. I didn't want to be stranded somewhere and have to pay a towing charge, so after reading a number of listing on this board I replaced my. The part cost about $60.00 at the dealer and it took only a few minutes to install. The problem is now gone. Ketchb