vibration qx56 4wd mode

[pemarsh]

I currently own a Lexus LX470.I recently test drove a new QX56 and it drove great, until i put it in 4wd mode (hi), then i noticed a vibration on the floor board. The salesperson said all 4wd vehicles will do this (obviously not true at all). When I switched it back to 2wd, vibration was gone completely---it only exists in 4wd mode.

[Q45tech]

Lexus makes the best 4WD truck vibrationwise............Infiniti/Nissan is still working the bugs out.

[pemarsh]

So this is normal per Infinity? All their qx56's do this? No lemon law for those who have already purchased?

[sameo2]

there is a recall on front axle coming loose that vehicle may dont have that donr yet.but that is not normal .