C3 Aircross steering has gone light

[WombatAttack]

My C3 Aircross is almost a year old and all of a sudden the steering has gone strangely light. It has lost a lot of its resistance and sensitivity, so noticeably more turning is needed. Obviously I'll be heading to the dealer, but was interested to know if anyone had experienced something similar. Although from a brief forum search, it looks not (which is slightly worrying). Cheers.

[WombatAttack]

I forgot to mention that there are no warning lights and I have set all the tyre pressures to their correct values (32psi).