Changed battery nothing doors not locking or unlocking, the red key icon is only on when engine off as soon as i switch car on it goes off, it's a 2006 Murano 3.5 v6 58,000 on clock.
Ok spoke with local Nissan dealer they reckon it sounds like the key has lost the synchronisation to the vehicle it will take a hour for a key reprogram, cost £57.
mine does something similar, i press the lock button on my key, it does the beep beep, headlight do their flashing thing, but doors dont lock. already tried replacing battery and stuck with the same problem...im honestly clueless