Car Alarms: Truck will not start due to anti-theft system !, gmc silverado, valet mode

Question
How do I get my 1995 GMC Silverado short box to start.  I
believe that my anti-theft system is after market.  The name
brand is a Chapman.  I think that the system is on lockdown.  
This happened to me a couple of weeks ago and a guy come
over and moved a few wires and started it.  How do I disarm
the system ?  so I can start my truck.

Answer
Ok, an installer would place the velet switch in a semi
hidden area. I'd 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 if wanting to remove it,
you contact a local technician to
locate it, and affect neccesary service
for you.

That should solve the troubles.

Let me know what you discover.

ALARMTEK
CARALARMMAN.COM