Location of main fuse for central locking alarm

SOURCE: Remote Door Lock/Unlock will not work.

At first look, I would have guessed that your battery in the door opener was dead, but that is not the case. I suggest driving to a nearby Chevy dealer and ask one of the salesman if he/she can help. They have always been helpful to me. If not try another one as they are in business to sell not only cars, but service also. They will be your best bet to fixing it. :D

SOURCE: 2002 Camaro unlock and lock won't work

first check the battery in the remote. if it is good it could possibly be the body control module

SOURCE: I bought a Chevy Trailblazer, used, had keyless

You need to find the black push button called the valet button. That is the overide. Get in the car turn the key to IGN as the alarm is going off and then you have either 5 or 10 seconds to push that button once and then 2-5 seconds later the alarm is shut off. To put the car into valet mode which means no alarm at all you put the key to IGN push that button once then pull key out at which point the blue light should turn solid blue.

Or option two is you open a door and hit the lock, then unlock, then lock button again on the remote and the blue led will be solid which means no crazy alarm.