For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

California Proposition 65 WarningReplacing Safety Belt System Parts after a Crash
Warning: A crash can damage the safety belt system in the vehicle.
A damaged safety belt system may not properly protect the person using it, resulting
in serious injury or even death in a crash. To help make sure the safety belt
systems are working properly after a crash, have them insp ...
Camshaft Cover Removal
Remove the oil level indicator (1).
Remove the 15 camshaft cover bolts (1).
Remove the camshaft cover (2) and the camshaft cover gasket (3).
...
Vehicle load capacity
Basic information
Before operating a loaded Nissan Armada, always verify that the total vehicle
weight does not exceed the specified Gross Vehicle Weight Rating (GVWR) or the Gross
Axle Weight Rating (GAWR). These critical limits are clearly indicated on the F.M.V.S.S./C.M.V.S.S.
certificatio ...