Car Alarms: 2003 cavalier with silencer alarm, gm vehicle, key switch


Question
I tried to jump start another car. Now when I turn the ignition key my horn honks and car does not start.  I found the valet switch under dash, and if i flip it to off position car will start. Is there a way to reset the alarm so I can start the car? The silencer alarm was installed and came with the car from the dealer. It has a key fob with only one button, that you press to turn off alarm to start vehicle.  Any help would be appreciated.

Answer
Doen not sound like the Alarm.

Ok then, from your desription and the
make/model/year of the car you have there,
it appears you've reset the VATS.

The car's security immobilizer
reader at the key switch
does not recognise the coded
chip in the ignition key any longer.

You can try to put the key
in the ignition, turn to the on position &
wait at least 10 mins like that.
(Do not turn off the key switch before
10 minutes as elapsed!)

Once done, the key is re-programmed and
should allow the fuel injectors to work again.
The car would start now if corrected.

In some cases, the VATS (GM'S VEHICLE ANTI THEFT SYSTEM)
will re learn the code this way, and will then
allow the restart, however if this does not work,
then you can simply tow it to any GM vehicle dealer
to have the service department re code it.

There is a permanent solution though.
Adding the PLJX Self learning Bypass module (59.95)
will bypass the PASSLOCK system in your vehicle
for good. See this at www.PASSLOCK2.com

Good luck I hope method 1 does the trick!

ALARMTEK
PASSLOCK2.com