Hi - just discovered that my car keys (both) won't turn in the door lock, but are able to start my car (so turn OK in the ignition lock). So it is as though the door and ignition locks are different. This is a series 1 SV6 so it is a simple key and I have had the car since 1 year old - ex Holden owned. Never noticed this before, but my fob battery died, so I tried to unlock manually and became concerned this is a new problem. Is there something "special" in the door lock I have missed? Thanks for any help, advice, corrections before I trudge off to a locksmith.