The vehicle has Electric Power Management (EPM) that estimates the battery's temperature and state of charge. It then adjusts the voltage for best performance and extended life of the battery.
When the battery's state of charge is low, the voltage is raised slightly to quickly bring the charge back up. When the state of charge is high, the voltage is lowered slightly to prevent overcharging. If the vehicle has a voltmeter gauge or a voltage display on the Driver Information Center (DIC), you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed.
The battery can be discharged at idle if the electrical loads are very high. This is true for all vehicles. This is because the generator (alternator) may not be spinning fast enough at idle to produce all the power needed for very high electrical loads.
A high electrical load occurs when several of the following are on, such as: headlamps, high beams, fog lamps, rear window defogger, climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the battery. It does this by balancing the generator's output and the vehicle's electrical needs. It can increase engine idle speed to generate more power, whenever needed. It can temporarily reduce the power demands of some accessories.
Normally, these actions occur in steps or levels, without being noticeable. In rare cases at the highest levels of corrective action, this action may be noticeable to the driver.
Battery Power ProtectionIgnition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF
in each shift lever position.
For automatic transmission vehicles, the ignition should turn to LOCK/OFF
only when the shift lever is in P (Park).
For manual transmission vehicles, the ignition should turn ...
Crankshaft Position Sensor Replacement
Crankshaft Position Sensor Replacement
Callout
Component Name
Preliminary Procedures
Raise and support the vehicle. Refer to Lifting
and Jacking the Vehicle
1
Crankshaft Position Sensor B ...
Emission control system warranty
Your Nissan Armada is protected by comprehensive emission-related warranties
designed to ensure compliance with environmental regulations and maintain optimal
engine performance.
For USA:
Emission Defects Warranty – Covers defects in materials or workmanship that
may affect emissions s ...