Car Alarms: 2006 Chevy Malibu Factory Alarm, 2006 chevy malibu, gm passlock

Question
I purchased the car used and when I got it, the alarm worked fine. I have had it now for 3 months and now the alarm won't work. I changed the battery in the remote but that didn't help. What is wrong with my car alarm?  

Answer
Hard to say from your explaination.
Let's take a guess then...

Put the key in the ignition, and turn forward
all the way just before cranking. Then within
5 seconds, press and hold in the valet/overide
button, found under the dash area,
until the installed LED (the blinking light)
in your dash area goes off, and the siren chirps twice.
(Your valet switch might be the toggle (on/off) type.
in this case, key on, flip switch in oposite direction,
key off.)

This should reset the alarm.

Just Repeat these steps to place it
back to valet mode.

That should do it.
If you want to remove it at this point,
take it to your neighborhood installer
for this, or buy the wiring chart for
the vehicle, and reverse engineer it wire
by wire, until it's safely removed.

If it does not work out this way,
you might be dealing with the GM passlock II system,
and you need to have GM inspect it under your
warranty.

Let me know what happens.

ALARMTEK
DELUXESERVICE.com