The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged in at least four hours before starting.
1. Turn off the engine.

2. Open the hood and unwrap the electrical cord. The cord is located in the driver side of the engine compartment, near the battery. It is shipped from the factory with a tie holding it in place. Use care in removing the tie so that the cord is not damaged.
3. Plug it into a normal, grounded 110-volt AC outlet.
Warning
Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a fire. You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cord will not reach, use a heavy-duty three-prong extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from moving engine parts. If you do not it could be damaged.
The length of time the heater should remain plugged in depends on several factors. Ask a dealer in the area where you will be parking the vehicle for the best advice on this.
Starting Procedure
Retained Accessory Power (RAP)All Seasons Tires Description
Most GM vehicles are equipped with steel belted all-season radial tires as standard
equipment. These tires qualify as snow tires, with a higher than average rating
for snow traction than the non-all season radial tires previously used. Other performance
areas, such as wet traction, rolling ...
Exhaust Manifold Heat Shield Installation
Install the exhaust manifold heat shield (2).
Caution: Refer to Fastener Caution.
Install the 3 exhaust manifold heat shield bolts (1) and the washers and
tighten to 8 Y (71 lb in).
...
I-BSI system limitations
WARNING
The following limitations apply to the Nissan Armada Intelligent Blind Spot
Intervention (I-BSI) system. Failure to operate the vehicle within these limitations
may result in serious injury or death.
The Nissan Armada I-BSI system cannot detect all vehicles or objects
in every si ...