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 WarningLiftgate Window Replacement
Special Tools
BO-24402-A Glass Sealant Remover (Cold Knife)
BO-39032 Stationary Glass Removal Tool
Use an adhesive that is approved by GM
For equivalent regional tools, refer to Special Tools
Removal Procedure
Warning: Refer to Cracked Window Warning.
Note ...
Fuel Tank Fuel Pump Module Replacement
Special Tools
EN-48279 Fuel Sender Lock Ring Tool
For equivalent regional tools, refer Special Tools.
Removal Procedure
Relieve the fuel system pressure. Refer to Fuel Pressure Relief
Remove the fuel tank. Refer to Fuel Tank Replacement.
Disconnect the electrical c ...
Intelligent Key battery discharge
If the Intelligent Key battery in your Nissan Armada becomes discharged, or if
external conditions such as interference affect its operation, the engine can still
be started using an alternative method. This ensures continued usability of the
Nissan Armada even in low-battery situations. ...