See also:

Operating range
The Intelligent Key functions can only be used when the Intelligent Key is within the specified operating range. When the Intelligent Key battery is almost discharged or strong radio waves are pr ...

INFINITI vehicle immobilizer system
The INFINITI Vehicle Immobilizer System will not allow the engine to start without the use of the registered key. If the engine fails to start using the registered key, it may be due to interferenc ...

Active Noise Control (ANC)
By identifying undesirable sounds in the cabin and then playing back through the speakers sound waves of opposite phase, the original noises are cancelled out, making the M's interior a quieter, m ...