Expert: INSTALLSUPPORT - 7/9/2008

Question
Yesterday I bought a 1991 Nissan Maxima.  In the middle of the night the alarm went off by itself.  I ran downstairs to turn it off and 30 minutes later it did it again.  I ended up leaving the car unlocked all night (which I'm not comfortable with in an apartment complex).  I figured it was just a fluke, it wasn't.  If I lock the car it goes off usually after a couple hours.  

Should I disconnect the alarm?  Or the sensors?  If so, how?

Answer
It's likely to be an after market system.

To try to disarm it,
look under the dash area for a button or,
a toggle switch. When you locate it, turn on the
ignition key, press and hold in the button (little
spring loaded micro button, red or black possibly)
until the alarm chirps 1 time. This should over ride
the system, and only the keyless entry part,
if installed, would still be operating.
The LED (light emiting diode) light in the dash
should also go on solid.=VALET/OVERIDE

This stops the alarm except for the keyless
entry if installed. Once in Valet mode,
it will allow the car to start and operate
like there was no alarm at all.

The next step is to remove or repair the alarm.
This might require a local technician to
identify it, and affect neccesary service
for you. Tell him you think it's either a door
trigger malfuntioning, or the system is picking
up a current spike and you need to have that
repaired.

Let me know what you discover.

ALARMTEK
CARALARMMAN.COM