2004 Nissan Sentra Owner's Manual - Page 70

The alarm is activated by: ● opening the door or trunk lid without using the key or keyfob (even if the door is unlocked by releasing the door inside lock switch) or opening the trunk lid by operating the opener lever. How to stop an activated alarm The alarm stops only by unlocking a door or the trunk lid with the key, or by pressing the UNLOCK button on the keyfob. or The alarm does not stop if the ignition switch is turned to ACC or ON. WIC0238 WIC0271 Type A Silencing the horn beep feature If desired, the horn beep feature can be deactivated using the keyfob. The instructions are on the back of the keyfob (Type A only). To deactivate: Press and hold both the LOCK and buttons at and UNLOCK or the same time for at least 3 seconds. The hazard lights will quickly flash 3 times to confirm that the horn beep feature has been deactivated. Type B To activate: Press and hold both the LOCK and and buttons at the UNLOCK or same time for at least 3 seconds once more. The hazard lights will quickly flash once and the horn will sound once to confirm that the horn beep feature has been reactivated. Deactivating the horn feature does not silence the horn if the alarm is triggered. If the system does not operate as described above, have it checked by a NISSAN dealer. 2-16 Instruments and controls