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Nissan Armada 2025-2026 Service and Repair Manual: Noise, Vibration and Harshness (nvh) Troubleshooting

NVH Troubleshooting Chart

Use the chart below to find the cause of the symptom. The numbers indicate the order of the inspection. If necessary, repair or replace these parts.

SUSPECTED PARTS

(Possible cause)
Symptom Reference
Transfer fluid leakage Noise
TRANSFER FLUID (Level low)   1 Inspection
TRANSFER FLUID (Wrong) 4 2
TRANSFER FLUID (Level too high) 1  
LIQUID GASKET (Damaged) 2   Exploded View
OIL SEAL (Worn or damaged) 2  

Front oil seal: Exploded View

Rear oil seal: Exploded View

Input oil seal: Exploded View
GEAR (Worn or damaged)   3 —
BEARING (Worn or damaged)   3 —
TRANSFER CASE (Damaged) 3 3 —

NOTE:

When transfer inner parts are malfunction, replace transfer assembly.

    Other materials

    Steering Assist with HD map data (a feature of ProPILOT Assist 2.1)
    In the Nissan Armada equipped with ProPILOT Assist 2.1, Steering Assist is enhanced by HD map data, enabling more advanced driving support. When all required conditions are met, the system indicator turns blue, signaling that enhanced functionality is active. In this advanced mode, the Nissan ...

    Fuel Pressure Check
    Work Procedure FUEL PRESSURE RELEASEFUEL PRESSURE RELEASE Remove fuel pump fuse. NOTE: For the fuse number, Refer to Wiring Diagram. For the fuse arrangement. Start engine. After engine stalls, crank it two or three times to release all fuel pressure. Ignition switch OFF. Reinstall f ...

    Precautions
    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG� and “SEAT BELT PRE-TENSIONER�, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger fo ...