See also:

Speedometer
Speedometer The speedometer indicates vehicle speed in miles per hour (MPH) or kilometers per hour (km/h). ...

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (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 ...