No "left the lights on" warning tone on 07 cayenne

[996lee]

Hi guys
Had to go rescue my Mrs twice this month after shes left her lights on and flattened the battery on our 07 cayenne
Now I know if I try and get out of my 996 leaving the lights on I get an annoying tone to remind me
But the cayenne doesn't seem to do this
Is that the norm? Or is something missing /broken/Not turned on?
As always any advice is always appreciated

[996lee]

Thanks buddy at least I know there is a problem somewhere then

[996lee]

sgrimshaw said:

Do you get the "no seatbelt" warning tone?

I'll have to check tonight
But assume that's related if Not?

[996lee]

Don't think I've heard a key in gong
So think this speaker could be a likely culprit