See also:

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (approximately 20 seconds). ...

Fuel gauge
The gauge indicates the approximate fuel level in the tank. The gauge may move slightly during braking, turning, acceleration, or going up or down hills. The gauge needle returns to E (Empty ...

Remote Engine Start (if so equipped)
The button will be on the NISSAN Intelligent Key® if the vehicle has remote engine start. This feature allows the engine to start from outside the vehicle. The following features may be ...