Mar 24, 2013 (7 years ago)
From a Nissan manual,
From the manual:
The Intelligent Key continually consumes
battery power as the key receives
a signal to communicate with the vehicle.
Battery life of the Intelligent Key is
about 2 years, although it varies depending
on the operating conditions.
When the battery of the Intelligent Key
is low, the green blinking key warning
light goes out about 30 seconds after
the ignition switch is turned to ON. If the
battery runs down, replace it with a new