System Diagram

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of NISSAN NORTH AMERICA, INC.

Key reminder is the function that prevents the key from being left in the vehicle.

Key reminder has the following 3 functions.

Key remainder function	Operation condition	Operation
Driver door closed*	Right after driver side door is closed under the following conditions: Door lock operation is performed. Driver side door is open. Driver side door is in lock state.	All doors (except back door) and fuel filler lid unlock.
Door is open or closed	Right after all doors are closed under the following conditions: Intelligent Key is inside the vehicle. Any door is open. All doors (except back door) are locked by door lock and unlock switch or door lock knob.	All doors (except back door) and fuel filler lid unlock. Honk Intelligent Key warning buzzer.
Back door is closed	Right after back door is closed under the following conditions: Intelligent Key is inside vehicle. All doors (except for back door) are closed. All doors (except for back door) are locked.	All doors (except for back door) and fuel filler lid unlock. Back door can open with back door opener switch. Honk Intelligent Key warning buzzer.

*: If the door closing impact shocks the door lock knob or contacts against baggage with the door lock knob might activate the door locks accidentally but unlock operation is performed in these cases.

CAUTION:

The above function operates when the Intelligent Key is inside the vehicle. However, there may be times when the Intelligent Key cannot be detected. This function does not operate when the Intelligent Key is on the instrument panel, rear parcel shelf or in the glove box. Also, this system sometimes does not operate if the Intelligent Key is in the door pocket for the open door.