See also:

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). ...

Brakes
If the brakes do not operate properly, have the brakes checked by a NISSAN dealer. ...

Horn
To sound the horn, push near the horn icon of the steering wheel. WARNING Do not disassemble the horn. Doing so could affect proper operation of the supplemental front air bag system. Tampering ...