We've just got another Leaf 30, and I notice one key difference between the two cars in that it makes no chime sound when switching the car on and off. I've been through the menu on the instrument panel, and selected all 3 different 'effects' as the car 'boots up', but none of them play, unlike the other Leaf we've got. Also, I can't see a volume control for this anywhere in the menu, but wondered if there is a fault or just a setting somewhere that needs to be adjusted? The handbook doesn't mention any other related settings to this. Everything else sounds related appears to work as normal. Any suggestions?