See also:

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

NISSAN Intelligent Key™ (if so equipped)
Replace the battery in the Intelligent Key as follows. 1. Remove the mechanical key from the Intelligent Key. 2. Insert a small screwdriver A into the slit B of the corner and twist it to sepa ...

Battery
-Keep the battery surface clean and dry. Clean the battery with a solution of baking soda and water. - Make certain the terminal connections are clean and securely tightened. - If the vehicle i ...