To inspect the engine air cleaner/ filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains covered with dirt, a new filter is required.
To inspect or replace the air cleaner/ filter:

1.4L L4 Engine

1.8L L4 Engine
1. Remove the two screws, tilt the cover, and slide it out of the assembly.
2. Inspect or replace the engine air cleaner/filter.
3. Lower the cover, slide it into the assembly, then secure with the two screws.
See Maintenance Schedule for replacement intervals.
Warning
Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off.
Caution
If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when you are driving.
When to Inspect the Engine Air Cleaner/Filter
Cooling SystemIf No Steam Is Coming from the Engine Compartment
If an engine overheat warning is displayed but no steam can be seen or heard,
the problem may not be too serious. Sometimes the engine can get a little too hot
when the vehicle:
Climbs a long hill on a hot day.
Stops after high-speed driving.
Idles for long periods in traffic.
If the ...
Electronic Park Lock Description and Operation
If the vehicle is equipped with automatic transmission and a floor mounted console
gear shift, it has an electronic park lock system (EPL). The EPL system purpose
is to prevent the ignition key from being turned to the OFF position when the transmission
is in any position other than PARK and t ...
Basic information
WARNING
Improper use or failure to follow the safety instructions for the Nissan Armada
Blind Spot Warning (BSW) system may result in serious injury or even fatal accidents.
The Nissan Armada BSW system is a supplemental driving aid and must not
be relied upon as a substitute for safe driv ...