On/Off?...I thought you held them down for 5 second with a standard key and 10 seconds for an "intergrated" keyless fob?....
or is that only for mine and my mums age of K12? (55 and 53 plate respectively)
ETA: Just double checked...held down Both the lock and unlock buttons at the same time for 5 seconds...then re-locked the car, and unlocked and my pasenger door wouldn't open
ETA2: to get it back into "convenience" mode just repeat and hold both buttons again for 5 seconds (the indicators will flash quickly
Unless of course yours in newer (facelift?) and they changed it?
Mine worked and its a standard key, but i couldn't seem to get my mums to go out of anti-hijack mode when she got home this evening
although...I think the battery in her spare fob is getting low...again (hers is "keyless entry" so i held it for much longer)
...will have to try again with her regular used key to double check that one <_<