I have reached the 15k mile mark on my HH 4WD. According to the maintenance guide, I should have the drive shaft bolt re-torqued. But the Toyota dealer I went to told me that the HH doesn't have a drive shaft? Who should I believe?

It seems to me HH has so-called 4WD-i, which uses a motor for rear-wheel drive. So does Toyota made a mistake in their maintenance guide?