Car Alarms: SureStart LX stopped chirping, valet mode, dash area

Question
I had the alarm installed in my 2001 PT Cruiser and never had a problem.  Recently had the car serviced and they used the key to gain entry.  Since then it has stopped chirping when alarming/disarming.  I checked and made sure it is in the proper mode.  Everything else is functioning properly ( lights flash when arming/disarming, etc.)  Any ideas.

Thanks, Tom

Answer
It appears from your expaination, that the
car alarm is in service mode.

Ok, try this.
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, usually to the
left of the leg drilled into a hidden away spot,
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.
Let me know what happens.

ALARMTEK
INSTALLSUPPORT.COM