"Button Tone/Beep Response" Mode

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

If beep is required, select "On".

Fig 1: Identifying BUTTON TONE/BEEP RESPONSE MODE Display
Courtesy of NISSAN MOTOR CO., U.S.A.
If no beep is required, select "Off".