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 WarningTransmission Assemble (Gen 1)
Special Tools
3-9506289 Universal Adapter
R-0007758 Holding Fixture
S-9407197 Differential Rotating Tool
S-9407198 Differential Bearing Race Wrench
For equivalent regional tools, refer to Special Tools.
Install the clutch and differential housing assembly (1)
onto ...
Rear Door Alert
In the Nissan Armada, the Rear Door Alert system is designed as a helpful reminder
feature that alerts the driver when there may be an item or passenger left in the
rear seats. Always check the rear seating area before exiting the Nissan Armada
to ensure safety.
The Rear Door Alert system in ...
System maintenance
If the AEB with Pedestrian Detection system in the Nissan Armada detects a malfunction,
it will automatically deactivate to prevent incorrect operation. In such cases,
an audible chime will sound, the AEB system OFF warning light (orange) will illuminate,
and the message "Malfunction See ...