Expert: INSTALLSUPPORT - 2/4/2008

Question
I have a 2000 Tahoe (new body style) that currently has alarm issues.  The key fob will unlock and lock the doors, and it will also set off the alarm but the alarm will not sound nor will the horn work when I press the horn on the steering wheel.  I know the alarm is going off because I hear the clicking sound made by the alarm, and also the hazard lights are blinking.  Any ideas?

Answer
It's an after market system from your description.
Probably dealership installed when
it was purchased originaly. It also seems to be in
long tamper mode.

To start, 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. The next step is to
either remove the alarm or, try to identify,
and get new remotes for it.

But once in Valet mode, it will allow the car
to start and operate like there was no alarm at all.

Let me know how it goes.

ALARMTEK
CARALARMMAN.COM